southern regional power committee · 4.1 mop vide letter dated 10.06.2016 (annexure-iii) had...
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Agenda for 29th TCC &30th SRPC Meetings to be held on 26th & 27th August 2016
CONTENTS 1. INTRODUCTION ............................................................................................................................................... 3
2. CONFIRMATION OF THE MINUTES OF 28th TCC & 29th SRPC MEETINGS ........................................................ 3
3. MEMBERSHIP TO RPC ..................................................................................................................................... 3
4. FLEXIBILITY IN UTILIZATION OF DOMESTIC COAL FOR REDUCING COST OF POWER GENERATION ............... 4
5. TERMS OF REFERENCE FOR RENEWABLE INTEGRATION – TASK FORCE ........................................................ 5
6. DETERMINATION OF TRANFER PRICE OF LIGNITE IN RESPECT OF NLC MINES FOR THE PERIOD 2014-19 –
REQUEST FOR MODIFICATIONS IN THE NOTIFICATION OF MOC .................................................................... 5
7. PREPARATION FOR MEETING REVISED ENVIRONMENT NORMS AS PER ENVIRONMENT (PROTECTION)
AMEN DMENT RULES, 2015 ............................................................................................................................ 6
8. ROADMAP TO OPERATIONALISE RESERVES IN THE COUNTRY ....................................................................... 6
9. COMPLIANCE OF ORDER OF HON’BLE CERC IN PETITION NO. 420/MP/2014 – IN RESPECT OF LVRT AND
OTHER PROVISIONS OF CEA/CERC REGULATIONS ......................................................................................... 8
10. LOW VOLTAGES .............................................................................................................................................. 9
11. PATROLLING / MAINTENANCE OF CRITICAL LINES AND SUBSTATIONS ....................................................... 11
12. CONTINGENCY OF 400 kV NELLORE - NELLORE PS LINES ............................................................................. 11
13. STATUS OF GENERATION IN GENERATING STATIONS .................................................................................. 12
14. REVIEW OF ULDC / SCADA/COMMUNICATION ............................................................................................ 13
15. TTC/ATC ........................................................................................................................................................ 15
16. UPCOMING TRANSMISSION SYSTEM ........................................................................................................... 16
17. UPCOMING RENEWABLE PROJECTS AND THEIR INTEGRATION WITH TRANSMISSION NETWORK ............. 29
18. NEW PROJECTS OF NTPC, NLC, NPCIL, JOINT VENTURE & UMPP ................................................................ 29
19. NEW PROJECTS OF STATE SECTOR & IPP ...................................................................................................... 31
20. EMERGENCY RESTORATION SYSTEM (ERS) .................................................................................................. 32
21. PROGRESS OF BUS/LINE REACTORS TO BE COMMISSIONED IN SR .............................................................. 33
22. OUTSTANDING DUES BETWEEN SOUTHERN AND WESTERN REGIONS ....................................................... 36
23. NON-AVAILING OF OCC APPROVED SHUTDOWN ......................................................................................... 37
24. SPARE ICT AND REACTOR PLACEMENT AND USAGE PROCEDURE ............................................................... 38
25. IEGC RELATED ISSUES REQUIRING ATTENTION/ACTION .............................................................................. 39
26. AUGMENTATION OF TALCHER-II TRANSMISSION SYSTEM .......................................................................... 50
27. INCLUSION OF DRAWAL OF MAHE IN REA ................................................................................................... 51
28. SHARING OF TRANSMISSION CHARGES OF TRANSMISSION ASSETS OF NATIONAL IMPORTANCE ............. 51
29. APPROACH BEING TAKEN BY CTU FOR RESERVING THE TRANSMISSION CAPACITY FOR THE CUSTOMERS
WHO HAVE AVAILED LTA WITHOUT IDENTIFYING BENEFICIARIES .............................................................. 52
Agenda for 29th TCC &30th SRPC Meetings to be held on 26th & 27th August 2016
30. STATUS OF PHASE I AND PHASE II OF PROTECTION AUDIT RECOMMENDATIONS ...................................... 53
31. GRID OPERATION .......................................................................................................................................... 55
32. THOROUGH REVIEW OF ALL THE DRAWAL POINTS OF STATES FOR DRAWAL COMPUTATIONS ................. 62
33. TPCIL REQUEST TO EXEMPT DEVIATION CHARGES ...................................................................................... 62
34. SCHEDULING OF NTPC RAMAGUNDAM SOLAR POWER PLANT (10 MW) .................................................... 62
35. GRID STUDY COMMITTEE (TASK- 2) AUDIT PROGRESS DETAILS .................................................................. 62
36. IMPLEMENTATION OF PROTECTION SUITE / PROTECTION MANAGEMENT SYSTEM (PMS) FOR SOUTHERN
REGION ......................................................................................................................................................... 63
37. OVER VOLTAGE RELAY (OVR) GRADINGS FOR 400 KV TRANSMISSION LINES OF THE SOUTHERN REGION 64
38. PROTECTION SYSTEM ANALYSIS GROUP (PSAG-15) MEETING HELD AT NTPL, TUTICORIN ......................... 64
39. SPECIAL MEETING ON ISSUES RELATING TO RECENT GRID DISTURBANCES IN GAJUWAKA – SIMHADRI -
KALPAKA CORRIDOR HELD ON 04TH MAY, 2016 AT SRPC, BENGALURU ....................................................... 65
40. SPECIAL MEETING ON PENDING PROTECTION ISSUES OF M/S KPCL HELD ON 03.06.2016 AT SRPC,
BENGALURU .................................................................................................................................................. 65
41. REVIEW OF ISLANDING SCHEMES OF SOUTHERN REGION .......................................................................... 66
42. PROTECTION SYSTEM ANALYSIS GROUP (PSAG-16) MEETING HELD AT AMBEWADI SS HELD ON
18.07.2016 .................................................................................................................................................... 67
43. PENDING IMPLEMENTATION OF RECOMMENDATIONS OF PROTECTION COORDINATION SUB-COMMITTEE
(PCSC) OF SRPC ............................................................................................................................................. 67
44. STUDY PROGRAMME ON THE INTEGRATION OF RENEWABLE ENERGY RESOURCES INTO THE GRID ......... 67
45. IEGC, FOURTH AMENDMENT REGULATIONS 2016- TECHNICAL MINIMUM OF GENERATORS /
COMPENSATION PROCEDURE FOR SHR & AEC ............................................................................................ 67
46. SCHEDULING/OPERATIONAL ISSUES IN RESPECT OF NP KUNTA UMSPPS – 1 ............................................. 67
47. COMMERCIAL COMMITTEE ISSUES .............................................................................................................. 68
48. REVIVAL OF UNITS AT SHARAVATHI GENERATING STATION ........................................................................ 69
49. REFERENCE FROM MNRE REGARDING COMPILATION OF DATA FOR MEETING RENEWABLE ENERGY
TARGETS OF 175 GW BY 2020 ...................................................................................................................... 70
50. PROVIDING INFORMATION REGARDING COMMISSIONING AND DECLARATION OF COD OF POWER
GENERATING UNITS ...................................................................................................................................... 70
51. FORECASTING, SCHEDULING AND DEVIATION SETTLEMENT OF WIND AND SOLAR GENERATING STATIONS
AT THE STATE LEVEL ..................................................................................................................................... 70
52. SKILL PLAN FOR POWER SECTOR BASED ON THE ASSESSED SKILL GAP IN THE SECTOR .............................. 71
53. REIMBURSEMENT OF SRPC EXPENDITURE ................................................................................................... 71
54. DATE & VENUE OF THE NEXT SRPC MEETING .............................................................................................. 71
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 3 of 71
SOUTHERN REGIONAL POWER COMMITTEE
BENGALURU
AGENDA FOR THE 29th
TCC & 30th
SRPC MEETINGS TO BE HELD ON 26th
& 27th
AUGUST 2016 AT CHENNAI
1. INTRODUCTION
The 29th
Meeting of Technical Co-ordination Committee & 30th
Meeting of Southern
Regional Power Committee (SRPC) will be held on 26th
& 27th
August 2016 at Chennai.
2. CONFIRMATION OF THE MINUTES OF 28th
TCC & 29th
SRPC MEETINGS
2.1 Minutes of the 28th
TCC Meeting held on 4th
March 2016 in Vishakhapatnam were
circulated vide letter dated 26th
April 2016. Minutes of the Meeting may kindly be
confirmed.
2.2 Minutes of the 29th
SRPC Meeting held on 5th
March 2016 in Vishakhapatnam were
circulated vide letter dated 19th
May 2016. Minutes of the Meeting may kindly be
confirmed.
For SRPC consideration
3. MEMBERSHIP TO RPC
3.1 Special Invitee /Membership status to M/s.PTC in RPCs
3.1.1 In the 5th
NPC Meeting held on 08th
April 2016 (MoM at Annexure-I), the following was
noted:
Grid Management Division, CEA had informed that M/s.PTC had requested for Special
Invitee / Membership status in all RPCs and had proposed deliberation on this issue in
the NPC meeting.
Chairperson, CEA had opined that it should be as per GoI resolution. For ERPC, due to
international transactions, special provision can be made but the approval of MoP
through CEA can be sought.
After detailed deliberations, it was agreed that the issue of membership for Traders
would be deliberated in respective RPCs and outcome thereof would be communicated
to CEA for taking up the matter with MoP.
3.1.2 SRPC may kindly deliberate.
3.2 Membership of IPPs in RPCs
3.2.1 The number of IPPs having more than 1000 MW installed capacity is increasing. In the 5th
NPC meeting held on 08th
April 2016 (refer Annexure-I), the following was noted:
WRPC had proposed to enhanced the limit of 1,000 MW to 2,000 MW for
membership of IPP in RPCs. NRPC had suggested that instead of allowing them
RPC membership the IPPs might be included in subcommittee like TCC/OCC.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 4 of 71
SRPC stated that generators were playing important role in various defense
mechanisms like FGMO, PSS tuning etc. their participation in RPC needed to be
reviewed.
NPC had suggested that the issue be deliberated first in respective RPCs and after
evolving a common view, the same would be referred to MoP for amendment in
Resolution.
3.2.2 SRPC may kindly deliberate.
3.3 Request of Adani Transmission Limited for inclusion as a Member in SRPC
3.3.1 Adani Transmission Limited vide their letter dated 05th
July 2016 (Annexure-II) have
informed that they are one of the largest transmission company operating in the private
sector in India and own, operate and maintain more than 5,000 ckms of Transmission lines
ranging from 400 kV to 765 kV. Additional projects of 2,000 ckms spanning across states
have been awarded to them through TBCB process. Highlighting the need of private
players in transmission planning /TBCB, ATL has requested to be included as a Member
in SRPC.
3.3.2 SRPC may kindly deliberate.
3.4 Membership of IL&FS and HNPCL to SRPC
3.4.1 IL&FS and HNPCL (2nd
Unit COD yet to be confirmed by AP) are meeting the eligibility
for Membership to SRPC.
3.4.2 SRPC may kindly deliberate.
4. FLEXIBILITY IN UTILIZATION OF DOMESTIC COAL FOR REDUCING COST
OF POWER GENERATION
4.1 MoP vide letter dated 10.06.2016 (Annexure-III) had informed that on 4th
May 2016
Cabinet had approved proposal of Ministry of Power for flexibility in utilization of domestic
coal for reducing cost of power generation. Presently, share of generation from coal based
power plants is about 78 % of the total generation in the country. These coal based power
plants are supplied coal against the plant specific Fuel Supply Agreement (FSA). There are
some power plants which generate cheaper power than others. There is scope for utilization
of coal in such power plants to achieve overall reduction in cost of generation.
4.2 In this regard, following mechanism for allowing flexibility in utilization of domestic coal
amongst power generating stations to reduce the cost of power generation had been
approved:
All long term coal linkages of individual Thermal Power stations of specific State (State
would include Union Territories) to be assigned to respective State or State notified
agency. Similarly, all long term coal linkages of individual General Generating Stations
shall be assigned to the company owning the Central Generating Stations (CGSs),
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 5 of 71
instead of individual Thermal Power stations to enable efficient coal utilization amongst
end use power generating stations.
Annual Contracted Quantity (ACQ) of each individual coal linkages (as per respective
Fuel Supply Agreements) to be aggregated as consolidated ACQ for each State or the
company owning the Central generating stations, as the case may be. A supplementary
agreement shall be signed for each State /Company owning the CGS for such
consolidated ACQ and the terms and conditions of supplementary agreement shall be
applicable on the aggregated ACQ of State or Central generating stations.
There shall be flexibility in use of such coal amongst the generating stations of state
owned utilities, plans of other state power utilities, company owning the Central
Generating stations and IPPs, amongst each others as per methodology issued by CEA.
Mechanism shall initially be rolled out for Central Generating Companies and State
Power Utilities. Ministry of Power shall separately notify the methodology for use of
transferred coal in IPPs generating stations.
Methodology for flexibility in utilization of domestic coal for reducing the cost of power
generation prepared in consultation with all the Stakeholders had been issued by CEA
and also available on the CEA website.
5. TERMS OF REFERENCE FOR RENEWABLE INTEGRATION – TASK FORCE
5.1 In the 29th
Meeting of SRPC, several issues had been highlighted in respect of renewable
integration since there was huge paradigm shift due to large volumes of renewable were
planned to be integrated into the grid. Impact of renewable integration on system
operation, balancing, infirm nature etc., was not fully known. Broader issues would be
needed to be studied in greater depth. In Europe, when renewable integration took place,
they had tried to use pan European grid like hydro reserves of Scandinavian countries to
balance solar and wind variability. So there would be a need to look into balancing power
from hydro, gas etc. with Southern Region perspective. Backing down of renewables could
not be a good option. Grid operational, commercial and strategic issues would be required
to be addressed. The manner in which renewables are getting integrated, all States could get
affected.
5.2 It had been agreed that a Task Force at TCC level could flag issues and come out with Term
of Reference and possibly get it examined through a Consultant.
5.3 This issue is scheduled to be deliberated in the Special Meeting of TCC to be held on 2nd
August 2016.
6. DETERMINATION OF TRANFER PRICE OF LIGNITE IN RESPECT OF NLC
MINES FOR THE PERIOD 2014-19 – REQUEST FOR MODIFICATIONS IN THE
NOTIFICATION OF MOC
6.1 CMD, TANGEDCO vide letter dated 16th
June 2016 (Annexure-IV) addressed to Secretary,
MoC had requested for modification of Notification on ‘Guidelines for fixation of transfer
price of lignite’ notified by MoC vide Order No. 228012/1/2014-CA-II dated 02.01.2015
keeping in view issues highlighted in the letter. Notification included three items viz, 1.
Removal of over burden charges, 2. Inclusion of 15 days lignite inventory under working
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 6 of 71
capital and 3. Shifting from Net Block to Gross block for the tariff period 2014-19. The
issues in respect of these had been brought to attention.It had been requested to consider the
same as presently the cost of lignite is more than cost of coal (at mine head and also at the
powerhouse end) even though its calorific value is comparatively less than coal. This
increases the cost of energy from Neyveli stations. Cost thus arrived is prohibitive and does
not come under merit order dispatch.
7. PREPARATION FOR MEETING REVISED ENVIRONMENT NORMS AS PER
ENVIRONMENT (PROTECTION) AMEN DMENT RULES, 2015
7.1 In the 29th
Meeting of SRPC, it had been noted that CEA had requested to furnish details of
preparedness and action plan in order to comply with revised water consumption and
emission norms by existing as well as new thermal units (to be installed from 01.01.2017
onwards) as per Environment (Protection) Amendment Rules, 2015 notified by Ministry of
Environment, Forest & Climate Change (MOEF & CC) (Gazette Notification dated
07.12.2015). SRPC vide letter dated 20.01.2016 had communicated the same to the
concerned utilities. MOEF guidelines had classified thermal generators into three categories
with different norms. The three classes were prior to 31st December 2003, 1
st April 2004 to
31st December 2016 and beyond 1
st January 2017. Existing as well as new plants were
required to meet the standards by the stipulated time lines. SLDCs had been requested to
kindly take up the matter with thermal power plants in their state. Information in this regard
was kindly to be arranged to be furnished to CEA with a copy to SRPC.
7.2 In the Sub Committee Meetings the following had been noted :
Neyveli TS I, TS II, CEPL, KSEBL, TPCIL and NCTPS St-II had submitted the
information.
APTRANSCO had informed that APGENCO had submitted the details to their
management and details would be furnished.
NTPC had informed that they had submitted the details to their Corporate and the
same would be furnished to CEA for all NTPC stations.
NTECL, Vallur had informed that draft had been submitted to Corporate and they
would furnish the information.
TSTRANSCO informed that TSGENCO was studying the issue internally.
NLC TS I Exp & KPCL had informed that they would furnish the information.
8. ROADMAP TO OPERATIONALISE RESERVES IN THE COUNTRY
8.1 In the 29th
Meeting of SRPC it was noted that Hon’ble CERC vide Order dated 13.10.2015
on Petition No. 11/SM/2015 in the matter of Roadmap to operationalize Reserves in the
country had directed as follows:
(b) The Commission reiterates the need for mandating Primary Reserves as well as
Automatic Generation Control (AGC) for enabling Secondary Reserves.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 7 of 71
(i) All generating stations that are regional entities must plan to operationalise AGC along
with reliable telemetry and communication by 1st April, 2017. This would entail a one-
time expense for the generators to install requisite software and firmware, which could
be compensated for. Communication infrastructure must be planned by the CTU and
developed in parallel, in a cost-effective manner.
(ii) On the other hand, National/Regional/State Load Dispatch Centres
(NLDC/RLDCs/SLDCs) would need technical upgrades as well as operational
procedures to be able to send automated signals to these generators. NLDC /RLDCs
and SLDCs should plan to be ready with requisite software and procedures by the same
date.
(iii) The Central Commission advises the State Commissions to issue orders for intra-state
generators in line with this timeline as AGC is essential for reliable operation of India’s
large inter-connected grid.
(c) To start with, a regulated framework in line with the Ancillary Services Regulations
would need be evolved for identification and utilizing of spinning reserves and
implemented with effect from 1st April, 2016. This framework may continue till 31
st
March, 2017.
……………
(d) In the long term, however, a market based framework is required for efficient provision
of secondary reserves from all generators across the country. For this, NLDC/POSOCO
is directed to commission a detailed study through a consultant and suggest a proposal
to the Commission for implementation by 1st April, 2017, giving due consideration to
the experience gained in the implementation of Spinning Reserves w.e.f. 1st April, 2016.
8.2 In the earlier Meeting the following was noted:
NLDC had informed that they had conducted regional level workshop to create
awareness on the implementing process. AGC issues were being looked into by the
Expert Committee of Members. Concept paper on operationalization of reserves has
been submitted to Hon’ble Commission. Issue regarding implementation of reserves
from 1st April 2016 was discussed and it was noted that each RLDC would compute the
ACE at the regional level which would be displayed on the website. Regional entity
generators would be required to take appropriate action. They had sought some more
time from Hon’ble CERC for operationalizing the reserves since many other issues such
as telemetry etc., were to be addressed. NTPC was responding positively and the
process of transmitting signals to the station as a pilot project was being contemplated in
each region. Changes in generators side controls were required and NTPC was taking a
lead in it.
SRPC had noted that sensitization and more interaction with SR utilities was required
and NLDC/SRLDC were requested for needful action in this regard.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 8 of 71
9. COMPLIANCE OF ORDER OF HON’BLE CERC IN PETITION NO. 420/MP/2014
– IN RESPECT OF LVRT AND OTHER PROVISIONS OF CEA/CERC
REGULATIONS
9.1 Three Meetings have been held so far for compliance of Hon’ble CERC’s Order in Petition
No.420/MP/2014 in respect of LVRT and other provisions of CEA/CERC Regulations. No
tangible progress is observed though Hon’ble Commission has specified time lines for a
number of actionable points for various entities.
Following issues merit kind attention for ensuring action for compliance:
Submission of data as per Format A & B annexed with MoM of 1st Meeting (held on
05.02.2016).
Nomination of Nodal Officer from APSLDC was pending. Ensuring participation of
Nodal Officers in Special Meetings.
STU/SLDC (except TSSLDC) to call for a meeting with Wind Developers.
STU/SLDC to ensure strict compliance of CEA’s Connectivity Regulations for all
WTGs commissioned after 15.04.2014.
STU/SLDC to ensure strict compliance of LVRT feature for all Solar Generators
connected above 11 kV (whose NIT was not issued by 05.01.2016).
SLDCs to prepare quarterly reports and submit to SRPC with regard to monitoring of
installation and performance of LVRT installed on existing WTGs.
STUs to study line loading in their systems to ensure N-1 compliance and submit reports
in this regard to CEA by 10.3.2016.
STU/SLDCs would communicate to the Wind Developers for setting the characteristics
of LVRT feature (and other provisions of CEA Regulations) as envisaged in CEA
Connectivity Regulations within end of July 2016. Wind Developers needed to certify
the same by end of August 2016. Status on this need to be covered in the quarterly
reports.
PMU may be required at Wind pooling stations and Wind Developers/STU/DISCOMs
could take pro-active steps in this regard.
STU/SLDC to approach respective SERC’s for the following:
To make suitable provisions in their relevant regulations or through orders to provide
for mandatory installation of LVRT in WTGs which fall within their jurisdiction.
To make suitable provisions in their regulations and through orders to ensure that
solar/wind generators provide real time data to SLDCs as per the provisions of Grid
Code. SLDCs to ensure availability of data in respect of real time data from their Data
Acquisition Systems of solar/wind generators in SCADA systems to respective
RLDCs as per the provisions of the Grid Code.
To issue appropriate regulations/orders to align with the provisions of the Grid Code in
respect of forecasting and scheduling for intra-State solar/wind generators and demand
estimation by SLDCs.
CTU and STUs to make provisions in this regard in their Connection Agreements to
ensure that wind energy generators comply with the provisions of CEA Technical
Standards for Connectivity Regulations for grid connectivity before granting
connectivity to the grid.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 9 of 71
9.2 SRLDC vide letter dated 15.07.2016 (Annexure-V) had taken up with CEA in this regard.
9.3 The issue is scheduled to be deliberated in the Special TCC Meeting to be held on
02.08.2016.
10. LOW VOLTAGES
10.1 A Special Meeting on low voltages was held on 18th
April 2016 at SRPC, Bengaluru
(Minutes available at SRPC website). After deliberations, the following had been
recommended:
KSEBL/TANTRANSCO/KPTCL to implement UVR scheme and settings to be in
place as recommended by 2nd
May 2016 at the following locations/nodes and furnish
compliance report. In case not implemented by 2nd
May 2016, non-compliance
messages would be issued by SRLDC.
Kerala: Trichur, Palakkad & Kochi
Tamil Nadu: Udumalpet, Salem & Hosur
Karnataka: Nelamangala, Somanahalli, Hoody and Bidadi
UVRs should not be bypassed or kept out of service. IEGC clause 5.2 (t) was referred
‘All Users, CTU and STUs shall provide adequate voltage control measures through
voltage relay as finalized by RPC, to prevent voltage collapse and shall ensure its
effective application to prevent voltage collapse/ cascade tripping…’
Physical Regulatory Procedure as enumerated in the minutes was agreed for
implementation. Step 4 was a critical step and thus SLDCs needed to take action to
avoid any situation which would compel SRLDC to take such step.
In case Specific instructions for opening 220/230 kV and below lines were not adhered
by SLDCs it would be deemed as violation of provisions of IEGC/EA 2003.
SLDCs to take action proactively by observing falling trend/pattern of voltages even
before receipt of SRLDC messages. SLDCs to also furnish the physical regulatory
measures to be taken up at low voltage nodes in their system. It was felt that physical
regulatory measures at 220 kV and below would give optimum results than physical
regulatory measures by SRLDC.
SRLDC real time messages/instructions to be adhered within 15 minutes of issuance
and the action taken report should be furnished within 30 minutes.
As a drive, faulty capacitor banks to be rectified immediately.
Chairperson, SRPC would be kindly requested to take up the issue with the concerned
since it was threat to system integrity.
Constituents were requested to revert back on utilization (operational/commercial
limitations & possibilities) of reactive support from wind/solar units even when they
are not generating.
States to furnish data of load management actions taken to overcome low voltage
conditions.
10.2 SRLDC had also presented the Study (SR snapshot of 0915 Hrs on 15th
April, 2016) to
ascertain requirement of capacitive compensation in low voltage areas of SR. In the study,
the capacitors were lumped at 220/230kV Station on 110/66 kV side and Capacitor
requirement had been arrived as below:
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 10 of 71
Additional 15 % more capacitor compensation needs to be added to compensate for
outages/maintenance of capacitor banks and considering the future growth.
All states were requested to install the capacitors as suggested before December 2016
i.e. before next high demand period for SR. Since time was limited, immediate action
was required to be taken.
10.3 Chairperson, SRPC vide letter dated 28.04.2016 (Annexure-VI) had taken up the issue with
States for necessary action.
10.4 A Special Meeting was conducted on 17th
June 2016 (MOM available at SRPC website)
with respect to pending KPTCL issues. The following recommendations were finalized in
that Meeting:
Retrofitting of Somanahalli and Hoody Capacitor Bank of 30 MVAR each to be
expedited. KPTCL to furnish the action plan within 2 weeks.
Faulty Capacitor Banks to be rectified in Bengaluru adjoining areas of KPTCL system.
KPTCL to furnish the details of faulty capacitor banks and action plan for rectification
within 2 weeks.
KPTCL /SLDC would call for a meeting with BESCOM with participation at
appropriate level within 2 weeks and following issues would be taken up:
Special drive on rectifying the faulty capacitors in BESCOM in a time bound
manner with the details of status of capacitor banks.
Tap optimization in the distribution transformers of BESCOM (to reduce drawal
of VAR)
Study of additional capacitor requirements. This needs to be taken up by
BESCOM on urgent basis.
Discom wise or location wise limitation on MW drawal due to low voltages and
high MVAR drawal.
Extending scope of maintaining power factor by other consumers (presently being
limited to HT Consumers).
BESCOM to identify feeders for Physical Regulatory Procedure based on MVAR
drawal by the respective feeders
Sub-Station
Capacitor –
Requirement
in
MVAR
Constituent wise
requirement
Nelamangala 160 Karnataka-505 MVAR
Hoody 185
Somanahalli 160
Mywadi 275 Tamil Nadu -
1025MVAR Arasur 330
Salem 210
Hosur 210
Palakkad 12 Kerala – 102 MVAR
Trichur 90
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 11 of 71
Senior Managements of KPTCL and BESCOM to be appraised that MW drawal
capacity had reached saturation and could be curtailed unless voltage profile is
improved and also if sub--transmission system is not strengthened on war footing
basis. Future increase in loads and even share from Yeramarus, Bellary, LTA etc.,
would be difficult to meet keeping in view the voltage profile.
SLDC could envisage taking up the issue with Hon’ble KERC to ensure that
BESCOM takes appropriate steps to improve voltage profile.
A Task Force could be set up on urgent basis to identifying the issues (Low voltages,
high MVAR drawal, strengthening of transmission & distribution system, drawal
capability of Bengaluru area , reactive requirement at DISCOMs etc) and to finalize
the action plan to resolve these issues in a time bound manner.
10.5 In the OCC/Special Meetings, the following was noted:
UVR had been implemented at Udumalpet (TN), Somanahalli (KAR) & Palakkad,
Trichur & Kochi (KER).
Udumalpet-Palakkad SPS had been implemented by KSEBL on 22.06.2016.
11. PATROLLING / MAINTENANCE OF CRITICAL LINES AND SUBSTATIONS
11.1 In recent times insulator tracking has been observed in Transmission lines and Substations
located in the coastal and polluted areas and SRPC vide letter dated 05th
May 2016
(Annexure-VII) had communicated to the concerned in this regard. Transmission Lines and
Substations in the most vulnerable terrain, coastal and polluted areas were to be categorized
for monitoring to ensure that Patrolling and Maintenance is being carried out as per
Patrolling guidelines. Format for furnishing details of schedule / Patrolling and Maintenance
carried out of the critical Transmission lines and Substations had been enclosed. MEPL,
SEPL, NTPC Simhadri, APTRANSCO & KSEBL had furnished the details.
11.2Concerned entities need to kindly take necessary steps to ensure that Patrolling and
Maintenance is carried out as per the Patrolling Guidelines.
12. CONTINGENCY OF 400 kV NELLORE - NELLORE PS LINES
12.1 The contingency of 400 kV Nellore- Nellore PS is under deliberation in various forums.
12.2 The following was noted in the 29th
SRPC Meeting :
NLDC had stated that they were envisaging a separate bid area for NPS connected
Generators. They would inform Hon’ble CERC regarding formation of separate bid
area. Power Exchanges would also be apprised accordingly.
TPCIL had suggested that alternate means like re-conductoring (HTLS) for this short
line could be considered. Any other measure which could help enhance evacuation
from this complex also needed to be explored.
CTU had pointed out that NPS-Nellore line included PGCIL and MEPL/SEL sections
and there could be issues in changing the conductor to HTLS for the entire line. There
could be equipment rating issues in the bay also. Since in the long term, the
interconnector was planned to be kept open, changing to HTLS did not appear to be an
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 12 of 71
economically viable solution. With bid area there could possibly be higher curtailment,
hence till other identified system came up, SPS (generation backing down) based
higher evacuation could be considered as an option.
SRPC had noted that already more than 2,000 MW of generation was available at NPS
and the first unit of NCC was also expected by May 2016. Any tripping of these lines
with generation loss would have adverse impact on the already loaded critical
inter/intra regional sections. STOA applications thus need to be judiciously processed
keeping in view the line flows.
TCC noted that NCC Unit I was scheduled to be commissioned by May 2016 and thus
process of formation of separate bid area needs to be completed at the earliest.
CTU stated that they would also examine other options like shifting of one or two lines
etc. for enabling higher evacuation from the complex.
12.3 In the OCC Meetings, SRLDC had informed that NLDC had called a Meeting with the
Power Exchanges in this regard. SRLDC had stated that they would carry out mock
computations to identify the export limits from the complex.
12.4 Subsequently SGPL (formerly NCC) vide letter dated 23.06.2016 (Annexure-VIII)
addressed to CEA had taken up the issue regarding evacuation from Nellore complex.
13. STATUS OF GENERATION IN GENERATING STATIONS
13.1 Issue regarding low generation in KKNPP, NLC TS-II Expansion, NTECL and NTPL was
deliberated in the 29th
SRPC / 28th
TCC meetings. The following had been noted:
NPCIL had informed that full generation of 1,000 MW was expected by the end of
March 2016.
NTECL had informed that second grab unloader had been commissioned on 17.02.2016
and conveyer related issues have been resolved. CEA team had also visited after the
commissioning of second grab unloader and they were satisfied that there were no
unloading constraints. Against requirement of 4.5 rakes/day, they were getting only 2.6
rakes per day till January 2016. From February, they were getting 3.5 rakes per day and
with this the PLF had also increased. Coal was also planned to be availed through the
Dhamra port and the Railways has given approval for 25 rakes/month through Dhamra
Port on 04th
March 2016.
NLC had informed that NLC TS II Expn units were first of its kind at this capacity.
Problems had been narrowed down but there were issues of falling of the refractory.
Experts had been called and specification of the refractory has been changed. Certain
modifications were being carried out and all the issues were expected to be resolved
within 3-4 months (by July 2016).
NTPL had informed that with assured domestic coal supply, blending issues would get
resolved. There were no coal issues and the PLF for the month of February was 81%
(Availability was around 86%). The generation would be increased to about 90 %.
They were getting 1 LT coal from MCL and balance was being imported.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 13 of 71
TCC had observed that KKNPP and other units need to furnish realistic expected
generation level/revival dates enabling improved planning. KKNPP and NLC TS II
Expn were requested to improve their generation levels.
13.2 The level of generation of some ISG stations is kindly given below:
13.3 The following was noted in the OCC Meetings:
NTECL had informed that pipe conveyor issue had been resolved during June 2016.
Supply of coal through Dhamra port had started. NTECL had requested SRPC to take
up the issue regarding coal supply. MS, SRPC vide letter dated 18.05.2016
(Annexure-IX) had taken up the issue with MCL.
Modification works on NLC TS II Expansion Unit I had been carried out.
14. REVIEW OF ULDC / SCADA/COMMUNICATION
14.1 In the earlier Meetings, the following had been noted:
Review of SCADA and Communication availability was being carried out in the
OCC/Special meetings.
Hon’ble Commission has issued Order dated 29th
January 2016 in respect of Petition
No.7/SM/2014. The following direction merits attention please:
‘14. Under the Grid Code, it is the responsibility of all users, STUs and CTU to provide
systems to telemeter power system parameters in line with interface requirements and
other guideline made available by RLDC and associated communication system to
facilitate data flow up to appropriate data collection point on CTUs system. Telemetry
of on-line operational data is not only essential for effective monitoring of grid but also
forms key input for effective running of State estimation and other EMS tools at RLDC
and SLDCs, which are essential for reliable and secure operation of the grid. In view of
the critical importance of telemetry and associated communication system for ensuring
reliability in operation of the grid and optimum utilization of the transmission system,
there is an imperative need for all users to establish the telemetry and associated
communication system in time bound manner so that the power system operation may
be most reliable and optimum. Moreover, in view of the requirement of communication
system for a generating station and sub-station, the planning should be done in
Station Mar’ 16 Apr’16 May’16 June’16
KKNPP U1,
NPCIL
Generation
in MU
639.22 707.68 720.84 721.38
PLF 86% 98% 97% 100%
NTECL,
Vallur
Generation
in MU
500.02 742.78 707.9 554.98
PLF 45% 69% 63% 51%
NTPL,
Tuticorin
Generation
in MU
538.27 592.67 576.35 295.47
PLF 72% 82% 77% 41%
NLC TS II
Exp
Generation
in MU
31.62 106.59 77.40 128.81
PLF 9% 30% 21% 36%
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 14 of 71
advance by the generating company and transmission licensee to ensure that necessary
system are in place before commissioning of generating station or sub-station to take
care of the communication requirements even at the time of injection of power infirm by
a generating station and sub-station during testing.
……………………………..
17. We further direct all the utilities/generating companies which have to still establish
telemeter power system parameters as per details given in para11 above to provide
data to RLDCs/SLDCs as per the provisions of the Grid Code and CEA Grid Standards
Regulations by 31.7.2016. If the utilities/generating companies do not comply with our
directions, it will be construed as non-compliance of the order of the Commission and
appropriate proceedings under Section 142 of the Electricity Act, 2003 shall be
initiated against such utilities/generating companies. NLDC is directed to submit user-
wise latest status of telemetry, by 31.8.2016.
18. NLDC and respective RLDC are directed to up-date the status of telemetry every month
at their web-site and persistent non-availability of data from the generating
stations/sub-stations be taken up in RPC meetings for appropriate direction and
action.’
APTRANSCO had expressed concern over the differences between SCADA and SEM
values. There were huge operational and commercial implications and the issue had
been raised by AP continuously TSTRANSCO & TANGEDCO had also raised similar
apprehensions.
After deliberations, the following had been agreed in the TCC:
Monthly meetings would be held to resolve the issues. Representatives from SLDC
and SCADA of each state would attend the Meeting along with participation from
PGCIL, SRPC Ssecretariat. SRLDC would coordinate the Meetings.
Other issues on SCADA/ULDC features would also be discussed during the
Meetings. The concerned OEMs may also be called as per requirements. States
were suggested to give their agenda points.
State-wise reconciliation would be continued.
AP report would also be reviewed keeping in view ISTS touch points and manual
entries
The following was noted in the SRPC meeting:
CMD, APTRANSCO & Chairperson SRPC had expressed serious concern over the
long pending issue. It was noted that a crash action plan was highly essential.
ED, SR-II, PGCIL had assured that communication issues would be sorted out.
Communication failure issues need to be communicated to PGCIL at the earliest in
real time.
It was agreed that PGCIL & SRLDC would nominate a Co-ordinating Officer at
senior level. Periodic monitoring/review would also be carried out during next 2-3
months. Mr. V.K. Khare, GM, SR-II and Mr. P. Ranga Rao, AGM, SR-I were
identified as Co-ordinating Officers from PGCIL to address the associated issues.
14.2 SCADA/communication issues were deliberated in two Special Meetings held on
21.03.2016 & 17.05.2016 and also in OCC meetings. The following was noted in
OCC/Special meetings:
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 15 of 71
Steps needs to be taken on the taken on the actionable points finalized in the Special /
OCC meetings.
SCADA/Communication issues addressing procedure was firmed up which needs to
be followed by all the entities. Details of Nodal officers for contacting in State /
PGCIL were also noted.
Redundant channel availability from Bhadravathi, Talcher etc., was to be made
through by PGCIL. New RTU was to be made available at Talcher by NTPC.
PGCIL to ensure availability of communication link across back up (main) control
centers of SLDCs to back up control centers of SRLDC (at NRLDC, New Delhi).
Data validation with respect to TSTRANSCO was carried out on 17.03.2016.
In respect of AP the following had been noted :
Many of the interstate lines between AP and Telangana were having RTU only on
one side. Urgent action to be taken by AP and Telangana to provide RTUs on the
other side also which can act as standby.
Considerable time drift was observed in some of the SEMs. These SEMs (> 10 min
drift) are to be replaced immediately. It is understood that OEMs had consented to
replace/rectify these SEMs on immediate basis.
It was clarified that as per CEA Metering Regulations, respective transmission
licensees would provide/replace/rectify SEMs on respective ends.
A reconciliation Meeting was convened by SRLDC with APTRANSCO on 03.03.2016
and 19.7.2016.
Data validation for Puducherry, Karnataka, Kerala and TN was carried out on
20.04.2016, 28.04.2016, 28.04.2016 and 07.06.2016 respectively.
14.3 ICCP link between RTAMC & SRLDC
14.3.1 In the SCADA Meetings, PGCIL had suggested ICCP link connectivity between RTAMC
and SRLDC . SRLDC had stated that present system of data through dual communication
channels from the RTU shall be ensured. The proposal of providing data from RTMC to
SRLDC through ICCP link as a supplementary additional arrangement could be reviewed
at an appropriate level. PGCIL had pointed out that in some of the other regions, the link
was being established and thus the apprehensions of SRLDC were not understood.
14.3.2 It had been suggested that this issue be taken up in TCC/ SRPC forum.
15. TTC/ATC
15.1 In the 29th
SRPC Meeting the following was noted:
In the 4th
meeting of NPC held on 10th
December 2015 (MoM dated 1.1.2016), it had
been decided that to begin with, power system study for assessment of operational
limits / power transfer capability for each state would be done by the concerned RLDC
in association with concerned SLDC. Monthly TTC/ATC would be uploaded by
SLDCs in their respective websites and also communicated to concerned RLDC &
NLDC subsequently.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 16 of 71
Some of the states had cited man power crunch to carry out the ATC/TTC
computations presently. SRPC had pointed out that this was a regulatory requirement.
Further as per decision taken in the NPC Meeting, States needed to carry out ATC/TTC
computations of their area. Besides this helped state utilities in gaining insight to likely
constraints and in taking proactive corrective measures.
APTRANSCO had stated that they would nominate officials for this exercise.
After deliberation, the following was agreed /noted in the TCC:
As per 4th
NPC Meeting, all states were required to compute monthly ATC/TTC
limits for their control area.
SRLDC/NLDC had agreed to render necessary assistance/conduct workshops
for the purpose.
For the base cases, constituents were suggested to kindly coordinate with
SRLDC. SRLDC had assured of full assistance in this regard.
In the SRPC meeting, It was agreed that capacity building/workshop on ATC/TTC
computation would be held as part of the exercise.
15.2 In the OCC Meetings, the following was noted:
Manpower issues were once again raised by AP, TS and KAR SLDCs.
Nominations for dedicated study groups from AP and TS were still pending.
ATC/TTC work shop for KPTCL, KSEBL & TANTRANSCO was held on 31st
March/1st April 2016, 12
th/13
th May 2016 and 6
th/7
th June 2016.
Works shop for APTRANSCO and TSTRANSCO was scheduled for July/August
2016
Converged PSSE base cases to be furnished to SRLDC.
15.3 In the 5th
NPC Meeting held on 08th
April, 2016, RPCs were requested to have regular
interaction with states for carrying out power system study in their network.
16. UPCOMING TRANSMISSION SYSTEM
16.1 Pending transmission elements in WR and SR for proper utilization of 765 kV
Raichur- Sholapur line (Out of planned 18 elements)
16.1.1Updated status of pending transmission elements in WR and SR for proper utilization of
765 kV Raichur - Sholapur lines (out of planned 18 elements) is furnished below please:
Sl.
No
Name of
Transmission
Element
Exe.
Agency
Sch. CoD Expected
date
Remarks
1 400 kV Gooty-
Tumkur D/C line
PGCIL June 2014 Commissio
ned on
01.12.2015
2 400/220 kV , 2 x 500
MVA, 63 MVAR
Reactor Tumkur S/S
PGCIL June 2014 Commissio
ned on
01.12.2015
Downstream network not
available
3 400 kV Tumkur-
Yelahanka D/C line
PGCIL June 2014 Severe RoW problem.
400 kV Yelahanka S/S is
ready.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 17 of 71
16.1.2 The following had been noted in earlier Meetings:
Downstream system by KPTCL was needed to be expedited to reap the benefit. LILO
of 400 kV Nelamangala – Hoody along with 400 kV Tumkur – Yelahanka together
could help in further evacuation.
Constituents had expressed that LILO of 400 KV Nelamangala - Hoody at Yelahanka
and Tumkur - Yelahanka line (even without downstream at Yelahanka) could help
increase ATC and hence PGCIL may prioritize commissioning.
16.2 Upcoming inter-regional transmission schemes
16.2.1 The updated status is furnished below please:
Sl.
No.
Transmission Element Remarks
a) 765 kV Wardha – Nizamabad-Hyderabad
D/C line
Original Schedule by May 2018.
PGCIL trying to complete the Wardha
- Nizamabad system by May 2017
b) WR-SR 6000 MW HVDC Bipole Link
[Raigarh (Chhatisgarh) - Pugalur-Trichur
(TN/KER)]
Nov’ 2019
Raigarh HVDC terminal Award
Placed in Jun’16.(Pkg under court
case)
Award under progress for other
packages under Scheme-I
c) 765 kV Angul - Srikakulam PS D/C line By August 2016, other associated
Sl.
No
Name of
Transmission
Element
Exe.
Agency
Sch. CoD Expected
date
Remarks
Tumkur downstream
1 220 kV Tumkur –
Antharasana Halli
D/C
KPTCL Tenders for
the above
line had
been
placed on
18.03.15
and it
would take
18 months
for
completion
July 2016
2 220 kV Tumkur (400
kV) S/S – 220 kV
Tumkur S/S D/C
KPTCL
Yelahanka downstream
1 220 kV Yelahanka
(400/220 kV) S/S-
220 kV Yelahanka
S/S D/C Cable – 5
kM
KPTCL 6/7
months’
time (5
kM) once
the award
was in
place
Jan 2017 Special cable
(international source) was
required. Tendering was
under process.
2 400/220 kV
Yelahanka S/S – 220
kV BIAL S/S D/C
KPTCL
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 18 of 71
elements by Jun’2017-Dec’ 2019
d) Additional inter-Regional AC link for
import to Southern Region, i.e., Warora -
Warangal - Hyderabad- Kurnool 765 kV
link
TBCB, PFCCL- BPC–Some scope of
work/ reactive compensation modified
and RfQ modified accordingly.
RfP opened. Schedule was 40 months
from the transfer of SPV (around mid-
2019).
36th
Meeting of Empowered
Committee scheduled for 26.07.16
e) System strengthening within SR for
transmitting power beyond Vemagiri
TBCB- RECTPCL-BPC–Some
scope of work/ reactive compensation
modified.
The project has been awarded to
PGCIL under TBCB, and was
expected by April, 2019.
16.2.2 Updated status of upcoming inter regional scheme is furnished at Annexure-X.
16.2.3 The following had been noted in earlier Meetings:
CMD, APTRANSCO & APGENCO had pointed out that considerable generation was
coming in Vemagiri area. With Angul-Srikakulam also injecting into Vemagiri,
system strengthening in SR beyond Vemagiri needs to be fast tracked.
16.2.4 As noted in 29th
SPRC Meeting a Joint Study Meeting was held at SRPC, Bengaluru
between 14th
-17th
March 2016 to study Short Term Planning & Long Term Planning Issues
(MoM copy at Annexure-XI).
Short-term (temporary) connectivity between Vemagiri-II(PG) and KV Kota
(APTRANSCO) for increasing TTC of SR
The studies were carried out and it was found that after commissioning of the Wardha –
Hyderabad and Angul – Sirikakulam – Vemagiri 765 kV lines, the TTC for import of power
by Southern Region would increase from 6650 (at present) to 9600 MW. However, this
TTC reduces by 1700 MW upon commissioning of the scheme – “Removal of constrains in
400 kV by extension at 400 kV Vemagiri substation”, which had been planned for
accommodating the KV Kota - Vemagiri at Vemagiri(AP). In these studies, one unit (660
MW) of East Coast was also considered. To overcome the reduction in TTC for import of
power by Southern Region, system studies were carried out by considering a short-term
(temporary) connectivity between Vemagiri-II (PGCIL) and KV Kota (APTRANSCO) as
detailed above. It was observed that with this measure, the TTC would increase to 11000
MW. Considering the benefit of this temporary connectivity which would be needed till the
commissioning of ISTS system beyond Vemagiri, all the states requested APTRANSCO to
consider this proposal positively. APTRANSCO requested POWERGRID to send draft
proposal for consideration and approval of their boards. Draft proposal sent by
POWERGRID is enclosed at Appendix-5.0
Determination of TTC to import power into Southern Region
From the above study following is observed:
A. TTC is expected to increase to 7275 (6650 + 625 MW) with commissioning of 765
kV D/c Angul-Srikakulam-Vemagiri and LILO of Gajuwaka-Vijayawada at Vemagri-
II(PG). However, with commissioning of Kudgi generation, TTC is expected to
decrease which can be offset by increasing transfer limit on 765 kV D/C Raichur –
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 19 of 71
Solapur to 2750 MW.
B. After commissioning “Angul-Srikakulam-Vemagiri 765 kV D/c line along with
“Constraints in 400kV bay extensions at Vemagiri” the TTC value is getting reduced
to 5980 MW from present level of 6650 MW. However, after rearrangement as
proposed in 39th
Standing Committee meeting on Power System Planning in Southern
region held on 28th
& 29th
December, 2016, the TTC value is increased to about 7800
MW to 8100 MW depending on gas generation at Vemagiri(AP).
C. S1-S2 corridor capacity significantly improved with commissioning of 400kV
Tumkur(Vasanthanarasapura) – Dharmapuri D/C line
16.3 Status of various Associated Transmission Systems (ATS) of upcoming generators
16.3.1 Common System Associated with NTPL / Costal Energen Private Ltd / Ind-Barath
Power Ltd
Updated status of associated links is furnished below:
Transmission Elements Line
Length
(ckm)
Impleme
nting
Agency
Sch
COD
Ant
COD/
Act
COD
Constraints/
Remarks
765 kV D/C Tuticorin
PS - Salem PS line
(Dharmapuri) (initially
charged at 400 kV)
735 PGCIL Dec'14 Dec’16
400 kV D/C Salem PS –
Salem line
120 PGCIL Sep’16 Line is ready
765 kV S/C Salem PS
(Dharmapuri) -
Madhugiri P S line
(initially charged at 400
kV)
244 PGCIL Dec'14 Sep’16 Severe ROW
problems in
Karnataka. Critical.
765/400 kV Salem PS
(initially charged at 400
kV)
PGCIL Dec’16 Supply civil works
and erection under
progress.
400 kV D/C Coastal
Energen – Tuticorin PS
Coastal
Energen
Jul’16 CEA in its meeting
held on 11.12.2015
has advised Coastal
Energen to
complete the line
by April 16, 2016.
16.3.2 Transmission system associated with IPPs (IL&FS) of Nagapattinam/Cuddalore Area
Updated status of associated links is furnished below please:
(i) Transmission system associated with IPPs of Nagapattinam/Cuddalore Area–
Package A
Transmission
elements
Line
Length
(ckm)
Imp. Agency Sch
COD
Ant.
COD
Constraints/
Remarks
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 20 of 71
Nagapattinam PS-
Salem New 765
kV D/C line
406 Powergrid
Nagapattina
m-
Madhugiri
Transmission
Company
Limited
(PNMTCL)
(A subsidiary
of PGCIL)
Mar’
15
July 16
Salem New –
Madhugiri 765 kV
S/c line.
219 Jul’16 Severe RoW issues
being faced.
(ii)Transmission System Associated with Contingency plan for Evacuation of Power
from IL&FS (2x600MW)
16.3.2.1 The following was noted in the 29th
SRPC meeting:
It was noted that some stringing/ upgradation was pending within NLC Complex. These
works had been envisaged as a contingency evacuation for IL&FS.
It was noted that strengthening of Neyveli TS-II-Neyveli TS-I with HTLS conductor
was part of contingency plan for evacuation of IL & FS power as per CERC Order. The
transmission capability remains unchanged in view of the replacement not carried out
in NLC complex. To allow higher power, balance works were also to be completed to
comply with the intent of CERC Order.
16.3.2.2 It was noted in the sub Committee Meetings, PGCIL had informed that BOQ had been
put to Management for approval.
16.3.3 Evacuation of Power from HNPCL (1,040 MW) Power Plant
(i) Updated status of associated links under APTRANSCO’s scope is furnished below:
Transmission
Elements
Line
Length
(ckm)/M
VA cap.
Implementin
g Agency
Target
Date
Target
date
completi
on
Constraints/ Remarks
Startup Power Line
from M/s. HNPCL
TPP to 400/220 kV
Kalpakka SS
7 APTRANSCO Line Charged on
07.02.2014
400 kV TM D/C
Line from HNPCL -
Kamavarapukota S/S
(Lot-I, II & III)
200 APTRANSCO Jul ‘15 Dec’16
400 kV TM D/C
Line from
Kamavarapukota S/S
- Vemagiri 400 kV
S/S
APTRANSCO Apr’17 Purchase Order issued
on 03.11.2015. 24
Foundations completed
out of 256.
400 kV TM D/C
Line from
Kamavarapukota S/S
- 400 kV Chinna
Korukondi S/S
212 APTRANSCO Sept. ‘15 Jul’16
All the foundations,
tower erections and
stringing works are
completed.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 21 of 71
Kamavarapukota
Substation
2x315
APTRANSCO Mar ‘16 Sep’ 16
Works under progress.
2 Nos. of 400 KV
Bay Extensions at
existing 400/220 KV
Kalpaka S/S of
HNPCL
APTRANSCO Nov 16 All works completed
for 1 No. of 400 KV
Bay on 07.02.2014
(ii) Updated status of associated links under TSTRANSCO’s scope is furnished below:
Transmission Elements Line
Length
(ckm)/M
VA cap.
Implement
ing
Agency
Target
Date
Target
date
completio
n
Constraints/
Remarks
400 kV TM D/C Line
from Chinna Korukondi -
400 kV Suryapet S/S
212 TSTRANS
CO
Works completed.
Suryapet S/S -
Nandiwanaparthi S/S 400
kV Quad D/C Line
240 TSTRANS
CO
Mar’15 By Sep 16 Works awarded in
Sep-13. Stringing
completed. OPGW
4.682 kM under
progress.
400 kV Quad D/C Line
from Nandiwanaparthi
S/S - Shankarapally S/S
222 TSTRANS
CO
Mar’15 By Sep 16 Tower erection: 300
out of 315 completed.
Stringing: 60.77 km
out of 111 km
completed/
Suryapet Substation
400/230/132 & 2 Nos. of
400 KV Bay Extensions
at 400 KV Shankarapalli
S/S
2x315
TSTRANS
CO
All works completed.
Suryapet SS charged
on 30.03.2016
through LILO of 400
kV VTS-Malkaram
Ckt 1
16.3.3.1 The following had been noted in SRPC/TCC Meetings:
APTRANSCO had informed that the system was getting delayed due to continuous
crops and ROW accessibility was difficult. Under guidance of CEA, the progress had
been reviewed by an independent consultant and the system was expected by
November 2016.
TSTRANSCO had informed that their portion of the evacuation scheme would be
ready within 4 – 6 months.
Joint studies for the Vemagiri complex were noted.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 22 of 71
16.3.4 Transmission system of KPTCL for evacuation of power from Yermarus TPS (2x800
MW)
Updated status of associated links is furnished below:
Transmission elements Imp.
Agency
Line
Length
(ckm)/
MVA
cap.
Sch. COD Constraints/ Remarks
Bellary 400 kV PS near
‘BTPS’
JSWEL
(KPTCL)
Jul’16(As
informed by
JSWEL)
Works under progress
Gulbarga 400/220 kV
substation
KPTCL 2x500 Land acquired. Geo tech
survey work will be awarded
within a week. Bill of
Materials prepared and
within 15 days estimate will
be prepared.
Yermarus TPS - Gulbarga
400 kV D/C line (QM)
KPTCL Detailed survey completed.
Estimate is being prepared.
400 kV SS at
Chikkanayakanahalli (C.N
Halli) near “Loop in Loop
Out” (LILO) point on the
Nelamangala – Talaguppa
400 kV lines to Hassan.
KPTCL 2x500
MVA
In 39th
SCPSPSR a step
down SS with 2
x 500 MVA,
400/220 kV
ICTs was
agreed.
Land Acquisition is under
progress. The proposal is
submitted from AC Tiptur to
DC Tumkur on 28.03.2016
LILO of both the circuits of
Nelamangala – Talaguppa
400 kV lines to the proposed
pooling station near CN
Halli.
KPTCL Linked with CN Hally
station
Termination of 400 kV D/C
line feeding 400/220 KV
station at Hassan from
Nelamangala – Talaguppa
line at CN Halli 400 kV
pooling station.
KPTCL After CN Halli land
identification, survey would
be taken up.
Yermarus TPS - Bellary
Pooling Station 400 kV D/C
line with quad moose
conductor
KPTCL 300
(400 kV
MC Line
(5.138
Kms) and
400 kV
DC line
(137.355
Km)
totally
for a
route
length of
142.493
Kms)
Aug 2017 (2
years from the
award)
DPR approved
on 26.02.2015.
Tendered on
09.03.2015.
Techno
Commercial
bids opened on
21.05.2015.
Price bids
opened on
01.07.2015. The
works have been
Meeting Update:
Total Locations : 399 Nos
Excavated : 209/399
Stubs concreted : 193/399
Towers erected: 14/399
Stringing : Nil
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 23 of 71
awarded in
October 2015.
Bellary Pooling Station -
C.N.Hally 400 kV D/C line
with quad moose conductor
KPTCL 360 Survey using
MST conducted
and reports
submitted to
zonal office vide
ltr no:1682-83
Dt:30.06.15 and
the same is
submitted for
approval to
CEE(P&C) vide
ltr.no.2504-06 dt
7.7.2015
To be tendered
Bellary PS to Madhugiri line
(765/400kV V.N.pura
substation (PGCIL)
a) Madhugiri to Rampura
limits): 400kV DC line
with Quad Moose ACSR
(188.74 Kms)
b) Bellary pooling Stn 400
kV to Rampura limits
(KelaginaKanavi): (43.018
Kms)
KPTCL
Under
Executio
n by
KECIL
By
Kalpataru
PTL
380
22-Dec-16
29th SRPC
March 2017
24-Apr-17
29th SRPC
March 2017
Out of 512 locations, 470
excavations over, 463 stubs
concreted, 445 towers
erected &125.9/188.74 km
stringing completed
Out of 125 locations, 105
excavations over, 96 stubs
concreted& 58 towers
erected
Bellary TPS – Bellary
Pooling Station 400 kV D/C
line with quad moose
conductor
KPTCL 10 In 39th
SCPSPSR it was
agreed to drop the proposal.
Dropped
De-link 400 kV S/C line
running between RTPS-
BTPS-JSW-Guttur with
JSW Bus
KPTCL
Agreed in 39th SCPSPSR
400 kV M/C line from JSW
to BPS is under progress,
once this is commissioned
the link between JSW &
BPS will be delinked.
JSW TPS – Bellary Pooling
Station 400 kV D/C line
with quad moose conductor
KPTCL Jul’16(As
informed by
JSWEL)
Only after all other
Transmission Elements
under Stage I are
commissioned. KPTCL/JSW
to discuss to take up this
work as dedicated
transmission line by the
generator.
Works to be carried by
JSW.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 24 of 71
16.3.4.1 The following had been noted in earlier Meetings:
KPTCL had informed that 400 kV Tumkur-Bellary PS D/C line had been awarded
and was expected to come along with Bellary PS with schedule of one and half years
i.e March 2017. They were trying to compress construction to one year against
schedule of one and half year. Land identification was completed in C N Hally but
KPTCL was targeting this system in the second stage.CEA had been requested to
allow 500 MW of evacuation from Yermarus coupled with drawal at Tumkur. It was
assured that 500 MW of injection from Yermarus would not be at the cost of regional
ATC.
SRLDC had pointed out that 400 KV Hiriyur - Nelamangala lines were getting
overloaded and ATS was not ready for Bellary Unit-III and Yermarus TPS.
Generation from the Complex maybe required to be regulated by Karnataka SLDC.
SRLDC had stated that only 2,090 MW of evacuation would be possible from Raichur
TPS, Yermarus TPS & Bellary TPS. KPTCL pointed out that with the present
network about 2,600 MW of power was already getting evacuated. SRLDC
confirmed that 400 kV N/W had only been considered in the studies.
16.3.4.2 In the Joint Study Meeting was held at SRPC; Bengaluru between 14th
-17th March 2016 to
study Short Term Planning & Long Term Planning Issues (Refer Annexure-XI) the
following was concluded:
So, based on studies, it was decided that Karnataka may commission first unit of
Yeramarus TPS either by reducing about 700 MW at Raichur TPS or by drawing about
500 MW at Madhugiri. Considering that a March/early April is low wind season,
Karnataka should attempt to achieve COD within March/ early April. This discussion is
exclusively for the purpose of COD. Regarding scheduling of YTPS power,
KPTCL/Karnataka would coordinate with SRLDC. The LTA and MTOA in ISTS would
have priority, and the margins if any after meeting these LTA/MTOA commitments may
be considered by SRLDC.
16.3.5 Transmission System required for evacuation of power from Kudgi TPS (3x800 MW
in Phase-I) of NTPC Limited
The updated status is furnished below:
Additional JSW TPS –
Bellary Pooling Station 400
kV D/C line with quad
moose conductor
Agreed in 39th SCPSPSR
400 kV BTPS-Guttur D/C
line (QM)
Agreed in 39th SCPSPSR
Transmission
Elements
Imp. Agency Scheduled
CoD
Revised
Target
Date
Constraints/ Remarks
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 25 of 71
16.3.5.1 The following had been noted in earlier Meetings:
Three 220 kV D/C lines were planned evacuation lines at 220 kV level to Vajramatti,
Basavana Bagewadi and Bijapur. The Vajramatti line had just been awarded and
could take about 1 year. There were some RoW issues in that area. Construction from
B Bagewadi and Bijapur ends had already commenced and about 50 % of the lines
are completed
16.3.6 Transmission System for evacuation of power from Singareni Collieries
Generating Project (2 x 600 MW)
The following is the status update:
400 kV Kudgi TPS
– Kudgi (PG) 2xD/C
Line
M/s Kudgi
Transmission
Limited (L&T
Infrastructure
Development
Projects Ltd.)
Feb-15 2015-16
One D/C line Kudgi TPS –Kudgi
(PG) declared on deemed CoD
from 04.08.15.
Kudgi (PG)-Tumkur
765 kV D/C Line
Dec - 15 Jul’16/A
ug’16
Under Progress
Tumkur - Bidadi
400 kV D/C (quad)
Line
Line is ready
400/220 kV ICT 2 at
NTPC Kudgi
Switchyard
NTPC Aug’16
400 kV Bus Reactor
-2
NTPC Jul’ 16 Under Progress
Transmission
elements
Length
(ckm/MVA
capacity)
Imp. Agency
Sched
uled
CoD
Target
date of
Completi
on
Constraints/
Remarks
1. 400 kV Singareni- Gajwel in two parts
a) 400 kV Jaipur
(Singareni) -
Rangampet D/C
(Quad)
149.636
TSTRANSCO
Comp
leted
Charged on
Nov 15
Reactor also
commissioned
b) 400 kV
Rangampet- Gajwel
D/C (Quad)
174.852
TSTRANSCO
Comp
leted
2. 400 kV Singareni-Nirmal in two parts
a) STPP, Jaipur -
Jagityal
142 TSTRANSCO Nov 16 Works Awarded on
Nov’15.
Foundations: 110
out of 201 Nos
completed. Tower
erection: 61 out of
210 completed.
Stringing work
commenced.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 26 of 71
16.3.7 Transmission System for Rayalaseema TPS (600 MW)
The following is the status update:
16.4 Status of upcoming links having impact on S1-S2
Following is the updated status:
Sl. Transmission Schedule Expected Remarks
b) Jagityal - Nirmal 156 TSTRANSCO Feb
17
Nov 16 Works Awarded on
Oct’15.
Foundations: 194
out of 2012
completed.
Tower erections:
182 out of 202
completed.
Stringing: 44.482
out of 74.088 kms
completed.
Transmission
elements
Length
(ckm/M
VA
capacit
y)
Imp.
Agency
Schedule
d CoD
Target
date of
Completio
n
Constraints/ Remarks
RTPP (Stage - IV) -
Chittoor TM D/C
Line
(a). RTPP - Pedda
Jamgam Palli
(P.J.Palli)
(b). P.J. Palli-
Chittoor
(c) 220 kV
Muddanur(RTPP)-
Chinakampally 3 &
4
432
120
APTRA
NSCO
Dec’ 16
Dec’ 16
Foundations: 291 out of 321
completed.
Tower erection: 250
completed.
Stringing of 49.049 kM
completed.
Foundations: 309 out of 321
completed.
Tower erection: 220
completed. Stringing of
38.868 kM completed.
Commissioned on
16.06.2016
400/220 kV,
Kalikiri S/S
2x315
MVA
APTRA
NSCO
Feb’17 PO is placed in Nov-15.
LILO of both
circuits of
Rayalseema IV-
Chittoor 400 kV D/C
line| at Kalikiri
APTRA
NSCO
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 27 of 71
No. Element Commissioni
ng Date
1 400 kV
Somanahalli-
Dharmapuri PS
Jun’15 Sep’16 Severe RoW problems being faced in
Karnataka. Critical issues related
compensation not yet resolved.
2
400 kV
Mangalore
(UPCL ) -
Kasargode-
Kozhikode
In the 39th SCPSPSR, it was noted that the
process of implementation of 400 kV
UPCL-Kasargode- Kozhikode line in TBCB
or regulated tariff in compressed time
schedule will be initiated as applicable.
16.4.1 In earlier Meetings the following had been noted:
PGCIL had informed that regarding 400 kV Dharmapuri - Somanahalli line, DC
(Urban) had ordered compensation of 100 % of fair value for tower footing and 55 %
for line corridor. With this, cost of 30 kM line was working out to as high as Rs 90
crore. SR-II, PGCIL had informed that ROW issues for 400 kV Somanahalli -
Dharmapuri PS were yet to be resolved and it would take around two months to
complete the work once the ROW issues are resolved.
16.5 Critical Intra-regional transmission elements
The following is the status update:
Sl.
No. Transmission Element Expected CoD Remarks
1 765 kV Salem- Tumkur
By PGCIL
Through TBCB
Sep’16
Jul’16
Severe RoW being faced in
Karnataka. Critical
2 400 kV Edamon-Kochi Jun’17 Govt. of Kerala issued revised
G.O in Jan’2015 with
enhanced compensation.
Being monitored under
PRAGATI
16.5.1 The following was noted in earlier Meetings:
SR-II, PGCIL had informed that regarding 400 kV Edamon - Kochi there was not
much progress. KSEBL had informed that the survey was being carried out from both
the ends and the ROW issues would be settled by Kerala Govt. The line was being
monitored under ‘PRAGATI’ (Pro Active Governance And Timely Implementation).
Regarding 765 kV Tumkur - Dharmapuri, PGCIL had informed that the line was
crossing four districts in Karnataka (Tumkur, Kolar, Chikkaballapur & Bengaluru
Rural) and RoW issues were being addressed in a stepwise manner.
16.6 400 kV Trichur-Kozhikode line (Madakkathara-Areakode)
In the 39th
SCPSPSR it was noted that Madakkathara - Areakode (Kozhikode) -
Kasaragode 400 kV D/C link may be taken up by KSEBL.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 28 of 71
16.7 Requirement of additional ICT at 400 kV sub-station at Kozhikode
16.7.1 In the 39th
SCPSPSR, 1 x 500 MVA ICT at Areakode (Kozhikode) substation was
agreed.
16.7.2 KSEBL vide letter dated 20.02.2016 had stated that PGCIL may take necessary steps to
provide additional ICT at 400 kV substation at Kozhikode temporarily by using spare 315
MVA ICT till 500 MVA ICT is available. The following was deliberated in the SRPC /
TCC meetings:
TANTRANSCO had informed that they would return back the spare ICT of PGCIL
being utilized at Sriperumbudur as their ICT was ready for commissioning.
PGCIL had stated that they would consider shifting either of the two ICTs and most
likely the ICT from Tamil Nadu would be feasible. They would initiate the bay
works also.
16.8 NLDC vide letter dated 21st April 2016 (available in NLDC website) had highlighted the
following transmission constraints in their Operational Feedback for the quarter January-
March 2016 in respect of SR:
I. Transmission Line constraints:
1. 400 kV Nellore Pooling Station -Nellore D/C line
2. 400 kV Gooty-Nelamangala line & 400kV Gooty- Somanahalli line
3. 400 kV Udumalpet- Palakkad D/C line
4. 400 kV Mettur - Arasur D/C
5. 400 kV Hiriyur-Nelamangala D/C line
6. 400 kV Jindal - BTPS S/C Line
7. 400 kV Kolar- Hosur D/C line
8. 220 kV Bangalore Metro Network
9. Overloading of 220 kV Shoolagiri-Hosur(TN)-Yerrandahalli-Somanahalli S/C line
10. 220 kV Sharavathy-Shimoga lines (4 nos) and 220 kV Sharavathy-Talaguppa D/C
11. Constraints in Coastal AP
12. Constraints for Rayalaseema TPS Generation Evacuation
13. Transformation Capacity at 400/220 kV Kozhikode SS
14. Constraints in Chennai 230 kV System
15. Overloaded 220 kV Lines in Tamil Nadu
16. Constraints in 230 kV Evacuation lines of MTPS and Kundah complex
17. Constraint in Evacuation of Coastal Energen
II. ICT Constraints
1. 400/220 kV 2 x 315 MVA ICTs at Gazuwaka
2. 400/220 kV 2 x 315 MVA ICTs at Vemagiri
3. 400/220 kV 2 x 500 MVA ICTs at Nelamangala
4. 400/220 kV 2 x 500 MVA ICTs at Somanahalli
5. 400/220 kV 2 x 500 MVA ICTs at Hoody
6. 400/220 kV 2 x 315 MVA ICTs at Mysore
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 29 of 71
7. 400/230 kV 2 x 315 MVA ICTs at Arasur
8. 400/230 kV 2 x 315 MVA ICTs at Udumalpet
9. 400/230 kV 2 x 315 MVA ICTs at Pugalur
10. 400/230 kV 2 x 315 MVA ICTs at Trichy
Respective entities are kindly requested to identify and implement short term and long
term measures to overcome these constraints.
17. UPCOMING RENEWABLE PROJECTS AND THEIR INTEGRATION WITH
TRANSMISSION NETWORK
17.1 Status update of the upcoming schemes in Southern Region for renewable as given below
is given at Annexure-XII.
Uravakonda Wind – AP
Solar Power Park at Ghani/Panyam (1000 MW )Phase-I Works – AP
1000 MW Wind Power at Aspiri- AP
1500 MW NP Kunta Solar Project- AP
TN – 1000 MW Solar Park to be developed by M/S Adani at Kamuthi
Kamuthi Solar (Max 100 MW injection)- TN
Samugarengapuram Wind (1800 MW existing + 300 MW) - TN
Green Energy Corridors:- Inter State Transmission Scheme (ISTS) - Part - A
LTA to Wind Generators in Tirunelveli Area - Tamil Nadu
Connectivity to Wind Generators in Coimbatore Area -Tamil Nadu
Connectivity to Wind Generators in Anantpur Area – AP
Renewables (KfW) Hindupur - AP
Renewables (KfW) Jammalamadugu - AP
Renewables (KfW) Uravakonda - AP
Renewables (KfW) 220 kV Interconnectivities - AP
Renewables (KfW) 132 kV Interconnectivities – AP
Renewables (KfW) Intra-state (modified scheme)- Karnataka
Renewables (KfW) Phase I – Tamil Nadu
Renewables (KfW) Phase II – Tamil Nadu
Tumkur Ultra Mega Solar Park (2000 MW) – Karnataka
17.2 In its 28th
meeting, TCC had observed that the timely progress on the above scheme needs
to be communicated to SRPC Secretariat since it was a critical issue being monitored by
various bodies.
18. NEW PROJECTS OF NTPC, NLC, NPCIL, JOINT VENTURE & UMPP
18.1 Krishnapatnam UMPP (6x660 MW)
18.1.1 The following had been noted in Meetings of TCC/SRPC:
The matter is sub-judice in High Court of Delhi.
CMD, APTRANSCO & APGENCO had informed that APSPDCL was the lead
procurer. Over a period of time this project was non-starter and it was unlikely to
start in future also. Except land leveling no work had been undertaken. Last week,
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 30 of 71
CAPL made presentation to the procurers for exit from the project. Hon’ble High
Court had posted the case on 22nd
April 2016 and project was being constantly
monitored. Even in the last procurer’s meeting, CAPL was suggested to come out
with a reasonable proposal.
Progress of Krishnapatnam UMPP had been uploaded in MoP website with the
observation ‘The project was handed over to Reliance Power Ltd. on 29.01.2008.
The developer has stopped work at site, citing new regulation of old pricing in
Indonesia. Lead Procurer namely Andhra Pradesh South Power Distribution
Company (APSPDCL) has issued termination notice to Coastal Andhra Power Ltd
(CAPL). The case is subjudice in division bench, Delhi High Court.’
18.2 Cheyyur UMPP (4,000MW)
18.2.1 In the 27th
TCC Meeting, CTU had informed that this project had been identified under
‘Plug and Play Mode’ and new bids would be invited during 2015-16.
18.2.2 The following was noted in the TCC meeting:
The progress of Cheyyur UMPP has been uploaded in MoP website with the
observation ‘The site at Cheyyur in Kanchipuram District in Tamil Nadu has been
identified along with captive port at Panaiyur village. Request for Qualification (RfQ)
and Request for Proposal (RfP) issued in 2013 were withdrawn. Fresh RfQ and RfP
are to be issued after the finalization of Standard Bidding Documents.’
18.3 Schedule of synchronizing/commissioning of the new projects of NTPC, NLC, NPCIL,
BHAVINI & UMPP is furnished below:
Station Unit
InstalledC
apacity
MW
Scheduled date of
synchronizing /
commissioning
Remarks
NTPC
Kudgi TPS Stage-
I
I,I,
III
3 x 800=
2400 Unit-I Synchronization by
Jul’16. CoD by
Mar’17.
Unit-II
Synchronization by
Mar’17. CoD by
Sep’17
Unit–III Synchronization by
Jun’17.CoD by
Dec’17
Telangana STPP
Phase I
2 x 800 U-I CoD May 2020
U-2 CoD Nov 2020
Pudimadaka AP 4 x 1000 52 Months from
Zero Date
85% share to AP.
Zero date yet to be finalized.
AP requested NTPC to firm up the
zero date at the earliest.
AP informed evacuation system
would be developed by PGCIL
NLC
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 31 of 71
New Thermal
Power Project
I 500 October 2017 NLC expressed concern that the
evacuation system needs to be in
place. CEA had given its
recommendation vide letter dated
10.02.2016.
CTU informed that the LILO to
Araliyur could only be taken up
after getting authorization from
MoP.
Araliyur S/S was being developed
by TANTRASCO and was
expected by June 2018
II 500 April 2018
Sirkali TPP I, II,
III
3 x 660 From GoI approval
Unit I – 52 months
Unit II – 58 months
Unit-III – 64 months
PPA has been signed. Fuel
imported coal. Approval of
Feasibility Report was awaited
from NLC Board.
NPCIL
Kudankulam St-I II 1000 Unit-II:
Synchronization by
July 2016
COD by Nov 2016
KKNPP informed that they would
approach Hon’ble CERC for
extension of availing start up
power. Extension available upto
31.07.2016.
BHAVINI
Kalpakkam
(PFBR)
I 500 Synchronization by
March 2017
COD by Sep 2017
UMPP
Krishnapatnam 3960
(6 x 660)
APEPDCL and PCKL had taken
steps with their legal counsel to
expedite the hearing before
Honorable High Court of Delhi
Cheyyur 4000 New bids would be called
19. NEW PROJECTS OF STATE SECTOR & IPP
19.1 Updated status of new projects of State sector is furnished below:
Sl
No
Name of project Located
in
Capacity in
MW
Commissioning Schedule
/Remarks
1 Rayalaseema TPS ST-IV AP 1 x 600 CoD by Dec’ 2016
2 Dr. NTTPS, Vijayawada AP 1 x 800
3 Polaki AP 4000
4 Bellary TPS U-3 KAR 1 x 700 Achieved full load on 01.03.2016.
COD by July 2016
5 Yermarus TPS KAR 2 x 800 Unit-I: FL achieved on 29.03.2016.
Unit II: COD by July 2016.
6 Kakatiya TPP St.-II Telangana 1 x 600 COD from 24.03.2016.
Confirmation yet to be received
from Commercial Wing
7 Singareni Telangana 2 x 600 Unit I: CoD by June 2016
Unit II: CoD by Aug 2016
8 Manuguru PPP Telangana 4 x 270
9 Kothagudem TPS Phase Telangana 1 x 800
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 32 of 71
VII
10 Damaracherla Telangana 2 x 600 +
4 x 800
19.2 Updated status of new projects of IPPs is furnished below:
Sl
No.
Name of project Located
in
Capacit
y in
MW
Commissioning Schedule /Remarks
1 Meenakshi PH-II AP 1 x 700 2016-17
Untied: 640 MW
2 East Coast Energy
Thermal
AP 2 x 660
2016-17
AP : 300 MW
3 Thermal Powertech
(TPCIL) Unit-III
AP 1 x 660
CoD : 2016-17
4 SGPL (NCC)
Krishnapatnam
AP 2 x 660
Unit I : CoD by 2016-17
Unit II: Syn. by September 2016
AP: 500 MW (firmed up PPA to be
signed).
5 Hinduja NPCL,Vizag AP 2 x 520 COD of Unit 1: 11.01.2016.
Unit II : 1st Synchronized on
31.03.2016
6 Coastal Energen Unit-II TN 1 x 600 COD on 15.1.2016
7 IL&FS
(ITPCL) Unit-II
TN 1 x 600 First synchronized to grid on
30.04.2016. COD from 30.04.2016
20. EMERGENCY RESTORATION SYSTEM (ERS)
20.1 The requirement of ERS was outlined in MoP letter dated 05.12.2014. CEA vide letter
dt.18.04.2016 (Annexure-XIII) had sought updated status on the ERS which was
communicated to the States. Status update is given below please:
Transmission
Utility
Requirement
as per MoP
Existing Status/Remarks
APTRANSCO 3 Nos. ERS I – Placed at Nellore.
ERS II – received on 25.04.2016 and
would be kept at Vizaz.
ERS III- tendering process had been
initiated.
TSTRANSCO 1 No. TSTRANSCO vide letter dt.31.5.2016 had
informed that they were in the process of
calling Tenders and it would take around
one year.
KPTCL 2 No. 2 Nos.
KSEBL 1 No. Appeared not to be feasible as per the
assessment. KSEBL had agreed to
reconsider.
TANTRANSCO 2 Nos Proposal had been sent for approval
PED Nil
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 33 of 71
PGCIL 4 Nos. ( 2 Nos.
additional)
2 Nos (SR I
& SR II was
having 1
No. each)
Order had been placed. Would be kept at
Vizag and Chennai. Expected by June
2016.
TSTRANSCO suggested that one ERS
could be kept at Hyderabad.
765 kV ERS (one each for SR-I and SR-II)
under process.
21. PROGRESS OF BUS/LINE REACTORS TO BE COMMISSIONED IN SR
21.1 Status of implementation of Bus / Line Reactors / Dynamic Compensation approved in the
Standing Committee / SRPC pending for commissioning by the SR constituents is
furnished below please:
Entity Bus Name Status REMARKS
KPTCL
Hoody Received at site by July
2016 As identified in the 22
nd Standing
Committee Meeting on Power
System Planning of SR and as
approved in the 4th
SRPC Meeting
held on 7thJune 2007
Nelamangala By December 2016
Entity Bus Name Capacity in
MVAR
Approved
in Type Remarks
PGCIL
Vijayawada 2x125 20
th SRPC/
34th SC
Bus
Would be
Commissioned
progressively from
Sep 2016.
Vijaywada reactor
expected by July
2016.
Nagarjuna Sagar 125 21
st SRPC/
34th
SC Bus
Narendra 125 21
st SRPC/
34th SC
Bus
Hyderabad 125 21st SRPC
Gooty 125 22
nd SRPC /
36th SC
Bus
Hassan 125
36th SC
Bus
Khammam 125 Bus
Kudgi PG 125 Bus
Trivandrum 125 Bus
Nellore (Existing) 125 Bus
Yelahanka 2x63 Bus
Nellore PS on NPS-
Gooty Line
2 x 63 (37th
SC) Line
Kudgi PG–Tumkur
D/C at each end 4 x 63 Line
Cuddapah 50 to 125 39th
SC
Thiruvalam 765 kV 2 x 240 39th
SC
APTRANS
CO
Vemagiri 80 21
st SRPC/
34th
SC Bus
Commissioned in
May 2015
Vemagiri 125
Bus PO has been
placed in the Kurnool 125 Bus
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 34 of 71
21.2 Subsequently, Chairperson, SRPC vide letter dated 19.05.2016 (Annexure - XIV) had
taken up the issue regarding expediting installation of reactors.
21.3 Dynamic Compensation (Approved in 36th
SC)
Entity Bus Name
SC
MVA
GVA /
KA
Dynamic
Compensation
(STATCOM)
Mechanically
Switched
Compensation
(MVAR) Remarks
Reactor Capacitor
Kalpakka 125
36th
SC
Bus
month of June
2016 with a
delivery schedule
of 18 months.
Chittoor 125 39th
SC
Vijayawada 125 39th
SC
APTRANS
CO/
APGENCO
VTPS Stage IV 125 39th
SC
KPTCL Davangere 125 39
th SC
Talguppa 125 39th
SC
TANTRAN
SCO
Almathy 125 39th
SC
Kaythar 125 39th
SC
TANTRAN
SCO/
TANGEDC
O
Mettur 125 39th
SC
TSTRANSC
O
Mamidipalli 125
36th
SC
Bus
LOI was ready and
awaiting PSDF
funding.
Gajwel 125 Bus
Sankarapalli 125 Bus
Mehboob Nagar 125 Bus
Malkaram 125 Bus
TSTRANSC
O/
TSGENCO
Srisailam LB 125
39th
SC
NPCIL Kaiga 2 x 125
Bus
Technical
specification being
firmed up for one
reactor. In the
special meeting
held on 19.5.2016,
KGS was
suggested to
initiate action for
both the reactors.
UPCL Udupi 2 x 125 39
th SC
Awaiting CERC
clearance for
capitalization.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 35 of 71
PGCIL
Hyderabad 18.4/
26.5
+ 200 MVAR 2x125 1x125
Under
Tendering
Udumalpet 19.4/
28.0
+ 200 MVAR 2x125 1x125
Trichy 12.5/
18.0
+ 200 MVAR 2x125 1x125
21.4 PSDF– Installation of STATCOM by Powergrid in Northern and Southern Region
21.4.1 MS, Appraisal Committee and ED, NLDC vide letter dated 23.06.2016 (Annexure -XV)
had referred to funding of the schemes of POWERGRID under PSDF for installation of
STATCOM in Northern and Southern Region submitted by POWERGRID at an
estimated cost of Rs 367.7 crore and Rs 472.55 crore respectively. The schemes were
deliberated by the Appraisal Committee headed by Chairperson, CEA in the Meeting
held on 31.05.2016. The Committee was of the view that approval of the concerned
RPC may be taken for further evaluation.
21.4.2 The issue is scheduled to be deliberated in the Special TCC Meeting to be held on
02.08.2016.
21.5 Reactive Power Planning
21.5.1 In the 5th
NPC meeting held on 08.04.2016 (MoM dated 29.04.2016), the following had
been noted:
In 4th
meeting of NPC, it was agreed that states should adopt a proactive approach in
the matter of reactive power planning, and that the provisions regarding reactive
power planning similar to those mandated in the IEGC for the CTU should be
included in the respective State Grid codes.
After detailed deliberation, it was agreed that the proposal of capacitor installation
planning by stars/entities would be referred to RPCs by PSDF Sub-Committee or
routed through RPCs by States/entities and the proposal would be vetted by the
respective RPC.
21.5.2 The status of Capacitor installation in Transco/Discoms is given below:
Utility Reactive Power Planning Voltage
level
Remarks
APTRANSCO 32 x 7.2
4 x 14.4
On 33 kV
side
4 x 7.2 MVAR Capacitors installed
APEPDCL Srikakulam : 5 x 2 MVAR
Vizianagaram : 2 x 2 MVAR
Visakhapatnam: 5 x 2 MVAR
Rajahmundry :10 x 2 MVAR
Eluru : 4 x 2 MVAR
33/11 kV
Level
APSPDCL April 2015 : 11 x 2 MVAR
May 2015 : 16 x 2 MVAR
July 2015 : 1 x 2 MVAR
Aug 2015 : 2 x 2 MVAR
Sep 2015 : 2 x 2 MVAR
11 kV level
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 36 of 71
TSNPDCL 123 x 2 MVAR
118 x 2 MVAR
54 x 2 MVAR and 36 x 1 MVAR capacitors
had been installed.
TSSPDCL 221 x 2 MVAR 11 kV level 185 x 2 MVAR erected.
KPTCL Bengaluru Tr. Zone:708.8 MVAR
12.1 kV Retendered on 19.05.2016. PO likely in July
2016. Commissioned by Aug 2017
Bagalkot Tr. Zone :258.1 MVAR
12.1 kV 39 Capacitor Bank supplied- to be erected. 35
nos/ 15 nos inspection raised/ to be raised.11
KV switchgear placed on M/s MEI – delivery
from last week of July 2016
Hassan Tr. Zone :136.3 MVAR
12.1 kV 13 Capacitor Bank supplied- to be erected. 16
nos partially supplied. Balance 11 Nos to be
supplied. 7 nos Capacitor cell installed.
Foundation completed 22 nos.
Mysore Tr. Zone :60.9 MVAR
12.1 kV All 21 nos (2.9 MVAR) Capacitor Bank
supplied.
11 KV switchgear placed on M/s MEI on
28.01.2016
18 Nos Capacitor Banks & 18 Nos DP
Structure started
Gulbarga Tr. Zone :98.60 MVAR
12.1 kV 17 nos (2.9 MVAR) Capacitor Bank supplied.
17 Nos to be supplied.
Tumkur Tr. Zone :281.3 MVAR 12.1 kV
KSEBL 15 MVAR 66 kV Dropped as N/w changed. To be revised after
study.
360 MVAR New proposal to be firmed up
TANGEDCO 34 x 2.4 MVAR 11 kV Materials received. Drawing approvals of 18
sides were pending
36 x 2.4 MVAR 11 kV Additional – Administrative approval
accorded for Coimbatore region
16 x 2.4 MVAR 22 kV 6 x 2.4 MVAR would be installed at
Salem/Coimbatore by July 2016
51 x 2.4 MVAR 22 kV Additional – Administrative approval
accorded for Coimbatore region
7 x 24 MAVR 110 kV Works yet to be taken up
780 MVAR of capacitors at
distribution level had been
commissioned out of 1,005 MVAR
capacitors planned.
21.5.3 PSDF – Funding of the schemes of the state utilities for installation of
capacitors in the state network at transmission / distribution network
21.5.3.1 MS, Appraisal Committee & ED, NLDC vide letter dated 22.06.2016 (Annexure-
XVI) had referred to the schemes of state utilities for installation of capacitors in
the State Network at transmission/distribution network for funding from PSDF.
The matter was deliberated by the Appraisal Committee during the meeting held
on 31.05.2016 wherein, it was decided that assessment of capacitor requirement
may be carried out at regional level by engaging expert agency like CPRI.
21.5.3.2 The issue is scheduled to be deliberated in the Special TCC Meeting to be held on
02.08.2016.
22. OUTSTANDING DUES BETWEEN SOUTHERN AND WESTERN REGIONS
22.1 In the 31st CCM meeting, the following was noted:
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 37 of 71
Puducherry Electricity Department vide letter dated 01.04.2016 informed that they had
received Rs.27,39,427/- from Maharashtra State Electricity Board (MSEDCL) for
WR-SR bilateral energy transactions done during October 2001 to December 2002.
Pending payments between WR& SR Constituents as on 02.06.2016 are as follows:
State Receivable from Payable to
Entity ` Entity `
Andhra Pradesh /
Telengana
MPPMCL 1,21,76,270 MPPMCL Nil
Karnataka MPPMCL 13,27,208 CSPDCL 73,72,176
GUVNL 9,40,320
Kerala MPPMCL 1,21,47,260
CSPDCL 7,05,279
GUVNL 4,98,019
Tamil Nadu MPPMCL 1,17,17,268 CSPDCL 92,77,878
Puducherry GUVNL 1,02, 721 GUVNL Nil
KSEBL and TANTRANSCO had informed that they had taken up the pending
payment issue with the WR constituents, with a copy to SRPC / WRPC Secretariat.
SRTS II, PGCIL had stated that ` 39,09,165 paid by MPPMCL (MPSEB) towards
50% UI charges from PTC-WR for the energy drawls during September 2002 had
been disbursed to SR constituents.
22.2 Payable amount by PGCIL (WRTS / SRTS) to SR Constituents (as on 02.06.2016)
State/UT Amount
(`)
Received(`) Paid by SRTS II
on 01.04.2016 (`)
Balance to
receive (`)
Andhra Pradesh &
Telangana
47,05,447 3,69,848 10,16,847 33,18,752
Karnataka 49,79,733 3,91,407 10,76120 35,12,206
Kerala 27,58,402 2,16,811 5,96,091 19,45,500
Tamil Nadu 47,21,994 3,71.149 10,20,423 33,30,422
Puducherry 9,24,035 72,629 1,99,684 6,51,722
Total 1,80,89,611 14,21,844 39,09,165 1,27,58,602
SR constituents were requested to take up the pending payment issue with the
concerned WR utility directly, with a copy to SRPC / WRPC Secretariat.
23. NON-AVAILING OF OCC APPROVED SHUTDOWN
23.1 In the OCC Meetings, it was noted with concern that entities were not availing the OCC
approved shut downs as per schedule. The details are given below:
Entity
Mar-16 Apr-16 May-16 Jun-16
App Avl
Avl
% App Avl
Avl
% App Avl
Avl
% App Avl
Avl
%
AP TRANSCO 27 12 44 39 16 41 34 12
35 41 25 61
KPTCL 11 1 9 5 0 0 13 6 46 4 2 50
KER 3 2 67 5 2 40 6 5 83 1 1 100
TANTRANSCO 17 9 53 31 5 16 30 2 7 18 6 33
TSTRANSCO 8 4 50 10 9 90 11 7 64 6 5 83
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 38 of 71
PGCIL, SR1 22 7 32 29 6 21 28 7 25 36 14 39
PGCIL, SR2 32 16 50 21 7 33 38 13 34 24 13 54
NTPC 4 3 75 2 0 0 3 1 33
NLC 4 4 100 1 1 100 2 2 100
NTECL 1 1 100
NPCIL 4 2 50
KPCL 3 3 100
PNMTC 1 1 100 1 1 100 6 2 33 10 0 0
KTL 1 1 100
MEPL 2 2 100
TOTAL 125 55 44- 146 51 35 179 63 35 145 69 48
Note: App – Nos. approved Avl – Nos. availed Avl % - % Availed w.r.t Approved
23.2 Necessary steps may kindly be initiated to adhere to schedules since it affected ATC/TTC
computations, purchase planning by states etc. All constituents had been suggested to
furnish the list of availed/non availed/emergency shutdowns in the previous month against
the OCC approved dates along with the reason for non-availing by 5th
of every month.
SRLDC was requested to keep the record of deferred or postponed outages (which are
OCC approved) due to system constraints.
23.3 SRLDC had developed a web based outage coordination system for requisitioning the OCC
approved outages on D-3/5 basis which is available at RLDC website (http://scheduling-
srldc.org:8080/OCS/Account/Login.aspx).
24. SPARE ICT AND REACTOR PLACEMENT AND USAGE PROCEDURE
24.1 In the 13th
Meeting, SRPC (14.05.2010), SRPC had approved one number of 400/220 kV,
315 MVA Transformer and one number of 80 MVAR Shunt Reactor as spare for the entire
Southern Region. In Standing Committee meetings also, some of the existing Reactors
(during enhancement with higher capacity) have been recommended to be maintained as
spares. These spares ICTs and Reactors are to be maintained and used during contingency
for short period of time. It has been noted that there is provision for keeping the spare
ICT/Reactor as given below:
Region Equipment Location
SR-I ICT Cuddapah & Hyderabad
Reactor Vizag & Gooty
SR-II ICT Hosur & Tirunelveli
Reactor Tirunelveli
PGCIL is requested to kindly furnish the status of spare ICTs/Reactors available in SR.
Presently, there is no ICT is available as spare. The methodology of using the spare
could be discussed and firmed up.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 39 of 71
25. IEGC RELATED ISSUES REQUIRING ATTENTION/ACTION
25.1 Automatic Demand Management Schemes
25.1.1 In line with clause 5.4.2 (d) of IEGC, Automatic Demand Management Scheme was to
have been provided by all constituents by 1st
January 2011. SRLDC & SRPC Secretariat
had repeatedly pointed out that automated scheme was to be in place to meet Regulatory
requirements.
25.1.2 In earlier Meetings, the following had been noted:
AMDS logic was finalized as OD >250 MW or 20 % of Schedule, whichever lower,
for 15 minutes when frequency < 49.8 Hz.
This setting (49.8 Hz) would be reviewed in 29th
TCC for subsequent enhancement
to 49.9 Hz.
25.1.3 The number of incidents satisfying the existing logic and proposed logic is given in the
table. It is recommended to migrate to IEGC limits of 49.9 Hz:
Month
Present settings Proposed settings as per IEGC
Frequency < 49.8 Hz for 15
Min. and OD = Min DSM
limit
Frequency < 49.9 Hz for 15 Min. and
OD = Min DSM limit
No of
instances
meeting the
freq. limit
No of
instances
applicable to
states
No of
instances
meeting the
freq. limit
No of instances
applicable to states
AP TN
March-16 0 Nil 23 7 0
April-16 0 Nil 77 12 4
May-16 1 Nil 33 14 5
June-16 0 Nil 44 8 8
25.2 UFR and df/dt reliefs
25.2.1 All States have implemented AUFR and df/dt schemes fully. SRPC vide letter dated
29.01.2016 had submitted status report duly certified by SRLDC and SRPC wrt
implementation of SCADA mapping of all constituents to Hon’ble CERC in respect of
Order dated 27.11.2015 vide Petition No. 60/MP/2014. Details of recommended,
implemented, SCADA monitorable and actual relief being realized are shown in the
Table below:
State AP TS KAR KER TN PUD SR
Recommended MW A 2782 2965 3539 1173 4176 103 14738
Implemented MW B 2782 2978 3559 1207 4544 116 15186
% B/A 100 100 101 103 109 113 103
SCADA
monitorable MW
C
1169 1898 3557 1184 3849 116 11773
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 40 of 71
Wrt
implemented %
C/B
42 64 100 98 85 100 78
Average Visible
Relief in May
2016 MW
E
1218 837 2556 1142 1982 94 7829
Wrt monitorable % E/C 104 44 72 96 51 81 67
Average Visible
Relief in June
2016 MW
F
1117 825 2077 991 1794 91 6896
Wrt monitorable % F/C 96 43 58 84 47 78 59
25.2.2 In earlier Meeting, the following was noted:
TSTRANSCO had informed that they had achieved about 70 % mapping.
APTRANSCO had informed that they would ensure 74 % mapping by June 2016.
SRPC had informed that in the NPC meeting it has been noted that there could be no
uniform df/dt settings. Settings for SR would be deliberated in the
Protection/Operation sub-committee Meetings. All constituents had been requested to
take steps to achieve 100 % mapping to comply with Order of Hon’ble CERC.
25.2.3 In the 5th
NPC meeting held on 8.4.2016 (refer Annexure-I), the following had been
noted:
Ensuring proper functioning of Under Frequency Relay (UFRs) and df/dt relays
“After deliberation it was agreed that each RPC would ensure proper functioning of
UFR and df/dt relays as per the agreed procedure of the region. Actual tripping of
feeder may not be required to test the healthiness of the UFRs. It was also agreed
that RPCs would sent their comments/suggestion on preparation of procedure for
certification of healthiness of UFR and df/dt relays”.
Observation on present UFR setting by Hon’ble CERC Order dt. 27.11.2015 in
Petition No.113/MP/2014.
“After deliberation, NPC decided that there was no need to review the setting of UFR
and df/dt in present power scenario”.
25.3 Restricted Governor Mode of Operation (RGMO)/FGMO of Generating Units
25.3.1 RGMO response is being analyzed in the meetings of OCC. SLDCs were to analyze
RGMO instances posted by SRLDC for the generators in their control area and initiate
suitable action as per orders in respect of 84/MP/2015. Inadequate Response was to be
taken up with SERC (Petition No.302/MP/2013).
25.3.2 Performance of RGMO is being analyzed in the OCC. The summary of instances is given
in the Table below:
For the incident on 14th
March 2016 (at 01:36 Hrs Frequency change from 49.99 to 49.82 Hz)
State Hydro Thermal TOTAL
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 41 of 71
Possible
(MW)
Actual
(MW) %
Possible
(MW)
Actual
(MW) %
Possible
(MW)
Actual
(MW) %
AP 5.9 1.3 22.6 145.9 110.6 75.8 151.8 112.0 74
TG 6.2 0.0 0.0 82.8 36.2 43.8 89.0 36.2 41
KAR 2.7 6.2 232.3 152.4 0.0 0.0 155.1 6.2 4
KER 9.9 12.0 121.4 0.0 0.0 9.9 12.0 121
TN 6.7 0.0 0.0 148.2 25.5 17.2 154.9 25.5 16
CGS 0.0 0.0 452.4 119.9 26.5 452.4 119.9 27
SR 31.4 19.6 62.2 981.7 292.3 29.8 1013.1 311.9 31
For the incident on 17th
April 2016 (at 01:19 hrs. frequency change from 49.99 to 49.80 Hz)
AP 188 37 19.6 0 0 187.89 36.87 19.6
KAR 181 7 3.6 16.84 18.17 108 198.17 24.77 12.5
KER 0 0 16.06 35.27 220 16.06 35.27 219.6
TG 83 50 60.3 2.96 -0.66 -22 86.24 49.52 57.4
TN 175 5 3.1 20.02 0 0 194.87 5.46 2.8
ISGS 519 87 16.7 0 0 519.47 86.54 16.7
SR 1147 186 16.2 56 53 94.5 1203 238 19.8
For the incident on 18th
May 2016 (at 17:31 hrs. frequency change from 50.05 to 50.45 Hz).
AP -104 -59 57.3 0 0 -103.6 -59.4 57.3
KAR -166 -42 25.5 -0.8 -20.1 2513 -167.1 -62.5 37.4
KER 0 0 -2.4 -11.3 471 -2.4 -11.3 470.8
TG -87 -87 100.3 0 0 -86.7 -87 100.3
TN -133 -56 42.5 -0.8 -1.4 175 -133.55 -57.83 43.3
ISGS -457 -160 35.0 0 0 -457.23 -159.93 35.0
SR -947 -405 42.8 -4 -33 820.0 -951 -438 46.1
For the incident on 9th
June 2016 (at 14:27 hrs. frequency change from 49.89 to 50.37 Hz).
AP -161 -118 73.6 -2.7 -2.7 -163.2 -120.8 74.0
KAR -171 -10 6.0 -46.5 0 0 -217.9 -10.2 4.7
KER 0 0 -13.2 -12.7 96 -13.2 -12.7 96.2
TG -75 -64 85.6 0 0 -74.8 -64 85.6
TN -132 -47 35.9 -5.8 -0.8 14 -137.8 -48.2 35.0
ISGS -433 -172 39.8 0 0 -432.6 -172 39.8
SR -971 -412 42.4 -68 -16 23.8 -1040 -428 41.2
25.3.3 SRLDC vide letter dated 14.07. 2016 (Annexure-XVII) had furnished a summary report
of RGMO performance of generating stations of SR during quarter-1 (April-June 2016)
to Hon’ble CERC. SRLDC vide letter dated 06.07.2016 (Annexure-XVIII) had taken
up the issue of primary response referring to NLDC letter dated 27.6.2016.
25.3.4 Regarding extension of RGMO status point to SRLDC/SLDC, the following had been
noted in the Meetings of OCC:
APTRANSCO: Upper Sileru (Cable problems) & Machkund (RTU problem) stations
yet to be extended.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 42 of 71
TSTRANSCO: Hydro units to be extended. RGMO was enabled for KTPP St 2 Unit
but status point to be updated.
TANTRANSCO: MTPS- I & II & Hydro stations status point to be extended. Status
point of Mettur Stage III is extended to SLDC.
KPCL: All the status point (except Raichur Unit IV) had been extended to SLDC. It
was informed that these points can be extended to SRLDC also. Status points of all
hydro units like Almathy, Kadra & Gerusoppa HEPs to SLDC had been made
available but yet to be configured to SLDC. RGMO was implemented in BTPS U-3
and has been enabled.
25.3.5 Hon’ble CERC had issued Order on 23.10.2015 in respect of Petition No.
302/MP/2013 and the following was agreed in the 28th
TCC meeting:
Certification regarding declaration (DC) being in conformance with 100 % MCR
(based on CERC order) and other provisions of the Order/Regulation would be
obtained from the generators.
SRLDC would schedule up to the DC of the generators.
In real time, RGMO performance would be monitored
25.3.6 In the OCC Meetings, SRLDC had informed that in the absence of declaration certificate
from all the generators they would be restricting the schedule to the minimum of
Normative DC taking care of the Units on bar and DC declared by the station.
25.4 Demand Estimation for Operational Purpose (Clause 5.3 of IEGC)
25.4.1 Each SLDC was to create a mechanism and facilities to facilitate on-line demand
estimation of demand for daily operational purpose for each 15 minutes block by
01.01.2011. In this regard, following may kindly be noted as contained in Order dated
19th
December 2013 of Hon’ble CERC in Petition No. 249/250/251/MP/2012:
“We direct all STUs/SLDCs of the Northern Region, Southern Region and Eastern
Region to forecast their demand and make adequate arrangements to avoid dependence
on Unscheduled Interchange for meeting their demand or for injecting short term
surplus power, irrespective of the frequency.”
Load Forecasting tool meeting the regulatory requirement is yet to be developed by all
the utilities.
25.4.2 In the OCC Meetings, it was noted that forecast was required for RRAS and Renewable
Framework
25.5 Sudden Change in Demand/Frequency Excursion
25.5.1 In the earlier Meetings, violation of Clause 5.2 (j) of the IEGC Regulations has been
highlighted. No user is to cause sudden variation in its load by more than 100 MW
without prior intimation to and consent of the RLDC. Similarly no user should reduce the
generating unit output by more than 100 MW without prior intimation to and consent of
the RLDC. Necessary action is sought in respect of demand and generation management
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 43 of 71
as well as power purchases, so that clause 5.2 (j) of IEGC Regulations is not violated.
25.6 Arranging of interruptible loads in four groups
25.6.1 As per IEGC, to maintain the frequency within stipulated band and also to ensure
network security, interruptible loads are to be arranged in four groups of loads. This was
for the purpose of scheduled power cuts/load shedding, loads for unscheduled load
shedding, loads to be shed through UF relays, df/dt relays and loads to be shed under any
SPS Scheme. These loads are to be grouped in such a manner that there was no
overlapping between different groups of loads.
25.6.2 Existing schemes are not meeting Regulatory requirement fully and further action is
required in this regard please.
25.7 PSS Tuning
25.7.1 3rd
Meeting of PSS tuning was held on 28.06.2015 and MoM is available at SRPC
website. PSS Study group also analyzed the Step Response Test Reports for the
generators which had furnished the reports and the recommendations had been finalized.
It is kindly requested that necessary action may kindly be taken as finalized in the 3rd
meeting of PSS.
25.7.2 The following units were yet to carryout Step Response Test (PSS Tuning) and the action
plan/schedule for SRT was finalized in the 3rd
PSS Meeting:
Entity Stations/Units
APGENCO Vijayawada TPS U 5 & U6, Lower Sileru HEP U2 to U4, Upper
Sileru HEP U1 to U4, Srisailam RB HEP U1 to U7.
AP IPPs HNPCL U 1 & U2, All gas generating stations
TSGENCO Kakatiya TPP U 2, Kothagudem TPS U5 to U8, Nagarjunasagar HEP
U1, Srisailam LB HEP U1 to U6
KPCL Raichur TPS U1 to U8, BTPS U1 & U2, Yeramarus TPP , Almathy
HEP U2 to U6, Sharavati Tail Race U1 to U4, Varahi UGPH HEP U1
to U4, Nagjheri HEP U1 to U6, Sharavathy HEP U1 to U10
KAR IPPs JSWEL U1 to U4
KSEBL Idukki HEP U1 to U6, Lower Periyar HEP U1 to U3, Sabarigiri HEP
U1 to U6
TANGEDCO NCTPS St- I U1 to 3, NCTPS St-II U1 & U2, Tuticorin TPS U1 to
U5, Mettur St-I TPS U3, Mettur St-II TPS U1, Kundah III HEP U1
to U3, Aliyar HEP U1, Kodayar I U1, Kadamparai HEP U1 to U4,
Kovil Kalappal (Gas)
TN IPPs: STCMS, Private Gas Stations
CGS NTPC, Ramagundam STPS U1 to U7, NTPC Talcher STPS St-II U 4
to U5, NTPC Kudgi, NTPC- RGCCP, Kayamkulam 2 GTs & 1 ST,
NTECL- Vallur TPS U1 – U3, Neyveli TPS I U7 to U9, Neyveli TPS
I Exp U1 & U2, Neyveli TPS II U1 to U7, Neyveli TPS II Exp U1
& U2, (NLC & TN JV)NTPL U1 & U2, NPCIL- KGS U1 to U4,
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 44 of 71
NPCIL- MAPS U1 & U2
ISTS connected
IPPs
Simhapuri Energy Ltd (SEL) U 1 to U4, MEPL U1 & U2, , Coastal
Energen U1 & U2, IL& FS U2, Lanco Stage II & III, SGPL, Nellore
25.8 Scheduling of Simhadri STPS Stage-I by SRLDC
25.8.1 APTRANSCO had filed a Petition in CERC in this regard and the petition was admitted
on 7th January 2016. A hearing in this regard is also scheduled on 16th February 2016.
25.8.2 Commission had reserved Order in the matter in respect of Petition No.291/MP/2015
25.9 SPS related Issues
25.9.1 Implementation of additional loads for KKNPP Unit-2 SPS
25.9.1.1 Unit II of Kudankulam was expected by July 2016 and all constituents thus need to
identify the feeders for the quantum envisaged as given below:
25.9.1.2 In the OCC Meeting, it was noted that Karnataka and Puducherry were yet to identify
loads for KKNPP Unit-2 SPS. In 121st OCC meeting a mock test for the identified
loads was proposed to be carried out in July 2016.
25.9.2 SPS Maintenance Protocol
25.9.2.1 In the 28th
Meeting of SRPC, SPS Maintenance Protocol to be implemented by PGCIL
was agreed. In the OCC Meetings, PGCIL had informed that Management Approval
has been received and the order may be placed on M/s Alstom.
25.10 Instantaneous Scheme for Sudden Withdrawal of Wind
25.10.1 TANTRANSCO had implemented the SPS for sudden withdrawal of Wind generation
at Udumalpet and Kayathar area and the same was in operation with effect from
27.04.2016.
25.10.2 In the Special / OCC meeting, KPTCL had also been suggested to implement
instantaneous scheme for sudden withdrawal of wind in line with TANTRANSCO.
25.11 Energy Generation data Management from Renewable Energy Sources
25.11.1 Monthly generation data in respect of renewal energy sources is to be submitted to
CEA with a copy to SRPC.
Trip
Signal AP KAR KER TN TS PUDU SR
KKNPP 116 174 91 315 132 20 848
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 45 of 71
25.12 Pending issues in respect of NPCIL / BHAVINI Units
25.12.1 A Special Meeting on pending issues in respect of NPCIL/BHAVINI was held on 19th
May 2016 in SRPC, Bengaluru (MoM available at SRPC website). The following was
deliberated:
Deviations of planned outages of NPCIL units
Maintenance of Units should not be planned during the period January to May of
the year in view of high demand in Southern region.
NPCIL to adhere to maintenance schedule finalized in the annual outage plan/OCC
without deviations.
Status of 2 x 125 MVAR Reactors at Kaiga GS
In view of grid requirement and time involved in procurement/commissioning of
reactors, NPCIL was recommended to take up procurement of both 125 MVAR
reactors simultaneously.
KKNPP Stage-II (2 x 1000 MW) and reactors planned were 2 x 125 MVAR
NPCIL assured that they would take up the matter with CTU regarding finalization of
reactive requirements, keeping in view no absorption by the Stage II units. Limitation
of 100-150 MVAR absorption for limited period but not on a sustained basis would
also be communicated.
Enabling of Auto Reclose feature
Kaiga-Guttur Lines
Time differentiated A/R scheme of 400 kV Kaiga- Guttur lines would be
implemented by June 2016. A/R scheme may be reviewed subsequently, in case more
trippings occur.
KPTCL was also suggested to increase patrolling and maintain ROW of the line.
Clearing of ROW was required to be taken up once before the monsoon commences
and also immediately after monsoon. Specific instructions in this regard needs to be
communicated to field staff (copy of which would be furnished to SRPC/SRLDC).
400 kV KKNPP – Madurai line
Concern of KKNPP regarding shunt reactor /PIR would be taken up with PGCIL.
Subsequently, the A/R implementation would be reviewed.
Status update on KKNPP-Tuticorin PS D/C lines would be sought from PGCIL.
All 230 kV lines emanating from MAPS
MAPS agreed to implement the A/R scheme by June 2016
All 230 kV lines emanating from BHAVINI
BHAVINI was suggested to implement A/R scheme by June 2016.
MVAR interchange at Kaiga GS and KKNPP Tap changing at Kaiga GS and KKNPP
KKNPP and KGS confirmed that they would issue specific directives to control room
to control the VAR injections above 400 kV and 220 kV, as applicable. They would
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 46 of 71
also make the control room staff aware of grid requirements and about the action to
be taken by them.
In case further restrictions are coming up with regard to MVAR absorption at KGS, it
was very imperative that KGS goes for 2x125 MVAR reactors now itself.
Pending SCADA inputs from NPCIL/BHAVINI
MAPS, KGS, KKNPP and BHAVINI to take action as deliberated in the Meeting.
Difficulties in laying OFC cable in switchyard of Kaiga GS
It was noted that in the communication meeting held on 17.5.2016, PGCIL had
informed that the issues had been resolved and the works would be completed by the
end of June 2016.
Declared Capacity (DC) revision in case of generating Unit outages/revisions
KGS, MAPS and KKNPP also felt that DC should be close to actual. Necessary
mechanism would be put in place to avoid such discrepancy.
It was noted that redundant internet connectivity needs to be ensured by NPCIL units.
Planning of Black Start Mock drill of Nuclear Power Plants
It was agreed that Black Start Restoration Procedure Mock Exercise for Nuclear
Power Plants would be co-ordinated on days of Bus Shutdown / maintenance
program. The station would take care of necessary resources required for such Mock
Exercise and co-ordinate effectively. In this regard, it was agreed to have a plant level
meeting with SRLDC and develop an internal procedure for detailing sequence of
operations required at plant level in a similar manner as was earlier done for NTPC,
Ramagundam.
Status of recommendations finalized in PSAG-14 meeting held on 16.12.2015
MAPS to complete all actionable points.
25.13 Un-requisitioned Power
25.13.1 Hearing of CERC on Petition No. 16/SM/2015 (Difficulty encountered in
implementation of the Commission`s order dated 5.10.2015 in Petition No.
310/MP/2014 regarding scheduling of unscheduled surplus power from the inter-
State generating stations) was heard on 23.02.2016. CERC Order is awaited.
25.13.2 The issue of URS sale was discussed in the OCC Meetings. MoP vide letter dated
09.05.2016 (Annexure-XIX) had suggested for enabling of URS sale in order to
implement the provisions of Tariff Policy, and it was requested to kindly take
necessary action.
25.14 Treatment of Bilateral short term and collective transaction in case of grid
disturbances
25.14.1 In the 5th
Meeting of NPC held on 08.04.2016 (refer Annexure-I), after deliberations,
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 47 of 71
NPC decided that in view of the comments received on the proposed accounting
methodology, the Working Group would meet again to arrive at consensus on the
methodology. The finalized methodology would be put up to NPC in the next
Meeting for approval.
25.15 Power swing blocking (PSB) setting in Distance relays
In the 5th
Meeting of NPC held on 08.04.2016 (refer Annexure-I), NPC while agreeing
to NRPC's opinion to have a uniform PSB setting across all regions, decided to
maintain status quo in different regions and await the report of the Consultant appointed
for implementation of the recommendations of the 'Task Force for Power System
Analysis under contingencies' before further deliberations in the matter.
25.16 Other Issues requiring kind attention of TCC / SRPC
The following issues which are being followed up in the Meetings of Sub-Committees of
SRPC merit kind attention:
a) It was noted that some of the units / elements were being commissioned from
retrospective dates. Recently, Kakatiya TPS Stage-II (600 MW) unit was
commissioned by TSGENCO retrospectively from 24.03.2016 and the same was
informed to SRLDC on 20.05.2016. It was noted that proper procedure for testing,
declaration of COD etc. is to be followed diligently.
b) Hon’ble CERC had brought out CERC (Deviation Settlement Mechanism and related
matters) {Third Amendment} Regulation 2016 which was implemented with effect
from 30.05.2016. Definition of renewable rich state and deviation limits for
renewable rich states etc. have been specified for computation of charges and
additional charges for deviation. In this regard SRPC vide letter dated 30.05.2016
(Annexure-XX ) had requested all constituents to verify the wind and solar installed
capacity values which is tabulated and furnish certified installed capacity of wind
and solar in state control area (excluding the wind/solar being scheduled by SRLDC).
It was also requested that whenever the installed capacity increases to more than
1,000 MW and more than 3,000 MW, values need to be certified and communicated
to SRPC. Whenever scheduling responsibility changes from SLDC to SRLDC the
revised figures are also needed to be certified and communicated.
c) Ramagundam ICT 2 is under prolonged outage from 30th
June 2015. Replacement of
this faulty 200 MVA, 400/132kV ICT with 315 MVA, 400/220kV ICT by
TSTRANSCO was agreed in 39th
Standing Committee. SRLDC vide letter dated
01.06.2016 had requested TSTRANSCO that immediate action may kindly be taken
for commissioning of the new ICT as there is continuous violation of N-1 security
constraints during peak hours due to the non-availability of the ICT, which may lead
to cascade tripping and loss of load. TSTRANSCO informed that ICT had reached
site and commissioning/erection activities had started was expected to on bars by end
of July 2016.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 48 of 71
d) N’Sagar – Cuddapah FSC 1 at Cuddapah station is under prolonged outage from 12th
March 2016 from due to capacitor failure. SR-I, PGCIL had informed that
rectification works were under progress and were expected to be completed by end of
July 2016.
e) The issue of frequent tripping of Vallur- NCTPS lines due to insulator tracking and
causing heavy dip in voltages was under discussion since May 2014. NTECL has
been continuously raising the issue of regular washing of the insulator/replacement
with polymer insulators. TANTRANSCO had been requested to go for complete
replacement of the insulators with polymer insulators. Gantry insulator replacement
was to be carried out either by NTECL / PGCIL for the other lines emanating from
NTECL.
f) Regarding NLC TS II – NLC TSI Expn reconducting works, it was noted that end
span works were yet to be reconductored. SR-II PGCIL had informed that BOQ had
been put up for management approval.
g) Regarding implementation of URTDSM (PMU) project in SR, PGCIL had informed
that in the first phase, installation of 62 PMUs were under progress. In the Special
SCADA/communication Meeting held on 17th
May 2016, constituents/generators
expressed the difficulties being faced w.r.t . PMU installation at sites under
URTDSM. Following had been finalized after deliberations:
PGCIL to furnish detailed procedure with respect to PMU installations under
URTDSM project viz, roles and responsibilities of users, responsibility upon
receipt of equipment at location, responsibilities during the installation, O&M
after installation, handing over, mandatory spares / O&M Spares responsibility
etc.
Prior communication about material supply, commissioning, installation, testing
etc would be ensured to identified Nodal Officers.
PGCIL Official should be present during material receipt and during
installation/commissioning/testing.
Equipment handing over procedure should be clearly specified.
Regarding O&M, the concerned entity would inform PGCIL regarding any issue
and in-turn PGCIL would get the issue resolved.
h) Status of Video Conferencing facility at SLDCs is given below:
State Status KER SLDC &TS SLDC Implemented
AP SLDC Would be provided at Vijayawada by
Dec 2016
KAR SLDC All equipments installed final
connectivity to be made through.
TN SLDC PO placed- would be implemented by
Oct 2016.
PUD SLDC Budget for 2016-17 not yet finalized.
i) SRLDC had taken up ICT Tap optimizations studies periodically and suggested tap
change action at 765/400 kV and 400/230-220 kV SS. However, this optimization is
effective only if it is carried out upto sub transmission level. To expand optimization
study to this level, SRLDC had requested 230/110 kV, 220/110 kV, 220/66 kV,
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 49 of 71
210/130 kV transformer technical data and voltage data from SCADA for peak and off
peak scenario. Constituents which have not furnished the data in the requisite formats
are requested to please furnish the same.
j) SRLDC had emphasized the need for alternate path between Somanahalli and SRLDC
and requested PGCIL to ensure the redundant alternate path considering the recent
SCADA blackout for long duration due to fiber cut between Somanahalli & SRLDC.
SRLDC requested SRPC to take up the requirement with Senior Management of
PGCIL and flag the issue to TCC / SRPC. SRLDC vide letter dated 16.06.2016
(Annexure-XXI) has taken up the issue with POWERGRID SR- II in this regard.
SRPC vide letter dated 13.06.2016 (Annexure-XXII) had taken up the issue of
OPGW stringing works in Karnataka enclosing SR II, PGCIL letter dated 09.06.2016.
In the 121st OCC, SR-II PGCIL had informed that Powertel OFC redundant
connectivity was available to SRLDC.
k) All tripping details need to be uploaded on SRLDC web portal. Para 29 of Hon’ble
CERC Order dated 20.02.2014 in respect of Petition No.146/MP/2013 is brought to
kind attention. Non furnishing of timely tripping details would be treated as non-
compliance. Tripping information details are to be uploaded within the stipulated time
frames.
l) Information regarding Cyber Security to be furnished to Chief Engineer, DPD, CEA,
New Delhi. Report on Physical Security, other Mock Drills for CMP, Mock Drill for
Black Start Restoration to be furnished to Chief Engineer, DMLF, CEA,New Delhi.
Copy of the report is to be sent to SRPC Secretariat by e-mail.
m) Procedure for restoration of remotely controlled sub stations of PGCIL along with the
contact no. of the person who would take care during emergency conditions needs to
be developed and furnished to SRLDC. SR-II PGCIL had furnished the partial details
in this regard. Comprehensive procedure was yet to be developed.
n) Auto Reclose feature was to be enabled for 220 kV Ambewadi – Ponda and Nagjheri
connected lines. Regarding Ambewadi-Ponda, KPTCL had informed that the R&M
works were going on for this line and the A/R would be covered in R&M works.
Regarding Nagjheri connected lines, KPCL had informed that numerical relays had
been received and works would to be completed by August 2016.
o) Operation of Nagarjuna Sagar in pump mode.
p) SRLDC had expressed concern on high loadings and N-1 violation of ICTs in TN
(Arasur, Udumalpet, Pugalur, Trichy, Madurai,), AP (Vemagiri), KAR (Somanahalli,
Mysore, Hoodi & Nelamangala) and TS (Ramagundam). It was pointed out that there
was insufficient action in controlling the loading of ICTs leading to N-1 criteria
violation in compliance of Regulation 3.1f (8) of CEA (Grid Standards) Regulations
2010 and Regulation 3.5 a(i) of CERC Indian Electricity Grid Code Regulations 2010.
q) SRLDC had expressed concern about the line loading on 400 kV Gooty-Nelamangala ,
Gooty-Somanahalli and Hiriyur-Nelamangala lines which were violating N-1 criteria.
r) RRAS generators had expressed concern that Forms AS-4 & AS-5 were not being
received by them as stipulated in Procedure. This information was sought by the
Management and by the Accounts Section to settle the bills. SRLDC had clarified that
the nodal agency (NLDC) was issuing Up/Down regulation through SRLDC. RRAS
as reason was being showed in remarks of Form “D”. The exact details of block wise
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 50 of 71
schedule were being shown for every revision and implemented schedule was
available in SRLDC website. Accordingly necessary information is already available
on the SRLDC website. Regarding details of timing and reasons for kicking in, NLDC
was preparing a monthly report and the same was being submitted to CERC which
would be shared with the constituents. Quantum conveyed by NLDC (Nodal agency)
may get changed at RLDC while scheduling due to ramp up/ ramp down rates and
other pending requisition (of beneficiaries). Thus forwarding the message to
generators in real time may not be feasible. Implementation difficulties are being faced
by Nodal agency and accordingly the Procedure would be relooked after experiencing
for 6 months and this clause could be modified.
26. AUGMENTATION OF TALCHER-II TRANSMISSION SYSTEM
26.1 KSEBL vide letter dated 25th
September 2015 had stated that since all Southern states
would get benefitted with the early commissioning of Talcher-II transmission system, all
SR Constituents may jointly implead as a party in the Civil Appeal filed by TNEB before
Hon’ble Supreme Court. In the 27th
TCC meeting it was suggested that SR constituents
may jointly implead as a party in the Civil Appeal filed by TNEB in Honorable Supreme
Court.
26.2 Hon’ble Commission in its Order dated 05.11.2015 in respect of Petition No. 14/SM/2015,
in the matter of ‘Notice under Section 19 of the Electricity Act, 2003 for revocation of the
inter-State transmission licence granted to Talcher II Transmission Company Ltd.’ had
passed the Order :
‘13. In exercise of our power conferred under Section 19 (3) of the Act and Regulation 20
of the Transmission Licence Regulations notice is given to the licensee to show cause
within three months from the date of this order as to why the transmission licence granted
for the transmission project should not be revoked in terms of the provisions of Section 19
of the Electricity Act and Transmission Service Regulation as quoted above. If no
response is received within three months from the date of issue of the order, the licence
shall be deemed to have been revoked.’
26.3 In the 29th
SRPC Meeting, TANTRANSCO had stated that as discussed in earlier SRPC
meeting, all constituents had been suggested to jointly implead but no action has been
taken. They were in the process of invoking the Bank Guarantee.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 51 of 71
27. INCLUSION OF DRAWAL OF MAHE IN REA
27.1 PED vide letter dated 11.01.2016 had informed that including the drawl of Mahe region
into REA was approved in 21st SRPC Meeting. It had been requested to arrange for ABT
compliant SEMs at both the ends.
27.2 In the 29th
SRPC Meeting the following had been noted:
Puducherry ED had informed that the S/S is owned by PED but maintained by
KSEBL and thus applying for LTA with Kerala did not arise. The communication
and the metering requirements had been established and the procedure could be
agreed at the earliest.
KSEBL had stated that in view of the ownership of the S/S by PED they would look
into the matter. The drawal visibility needed to be ensured at Kerala SLDC.
Director, KSEBL had agreed to look into this matter favorably.
27.3 SRPC vide letter dated 08.07.2016 had requested the following:
Total number of interconnections between Kerala and Mahe with complete details
The Status of RTU – communication facility to SRLDC from KSEB and Mahe ends
The SEM scheme installed
The status of petition to be filed in CERC for the approval of YTC of line (s)
between Kerala and Mahe
28. SHARING OF TRANSMISSION CHARGES OF TRANSMISSION ASSETS OF
NATIONAL IMPORTANCE
28.1 Hon’ble Commission in its Order in Petition No. 67/TT/2015 (Sharing of Transmission
charges) had stated the following in Para 30:
“Since, these assets are proposed to be considered as assets of national importance and
all the regions are proposed to bear the transmission charges, we consider it necessary
to hear the DICs of all the regions”.
28.2 The following had been deliberated in the 29th
SRPC Meeting:
KSEBL/TANTRANSCO had stated that the planning of this system had not been
deliberated in the Standing Committee of SR and SRPC meetings. In the present
scenario the SR constituents were unlikely to reap any benefit from this HVDC links
between NER and NR.
PGCIL had stated that Kerala and Tamil Nadu were the main beneficiaries of Raigarh
– Pugalur – Madakathara HVDC link. Hence, all the constituents should show
positive approach towards sharing of the transmission charges for the assets of
National importance.
It was agreed that Chairperson, SRPC could take up the issue and concerns of SR
constituents with Chairperson, CERC.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 52 of 71
28.3 Subsequently, Chairperson, SRPC vide letter dated 16.03.2016 (Annexure-XXIII) had
taken up the issue with Chairperson, CERC.
In the ROP for date of order dt.03.03.2016, the following had been stated:
‘…Accordingly, we direct that the transmission charges allowed in para 6 of this order
shall be provisionally recovered from DICs of all regions in accordance with the
provisions of Central Electricity Regulatory Commission (Sharing of Inter-State
Transmission Charges and Losses) Regulations, 2010 as amended from time to time,
subject to the final decision of the Commission in the present petition. It is further
directed that any grant/assistance received from Government of India/PSDF Fund shall
be applied to reduce the cost of the assets and consequently, the Order in Petition
No.67/TT/2015 Page 13 of 13 transmission charges of these assets. We direct PGCIL to
pursue the matter in the right earnest for early release of grant/assistance.
The matter shall be listed on 14.4.2016 for further directions.’
In the ROP for date of hearing 19.04.2016, the following had been stated:
‘………..The Commission directed the respondents, who have not filed their reply, to file
reply as a last opportunity by 29.4.2016 and the petitioner to file rejoinder, if any, by
6.5.2016. The Commission directed the parties to comply with the directions within the
timeline specified.
4.The Commission directed to list the matter on 31.5.2016 for final arguments.’
29. APPROACH BEING TAKEN BY CTU FOR RESERVING THE TRANSMISSION
CAPACITY FOR THE CUSTOMERS WHO HAVE AVAILED LTA WITHOUT
IDENTIFYING BENEFICIARIES
29.1 The following was noted in the earlier SRPC Meetings:
KSEBL had pointed out that the generators had been granted LTA with target region
about 5-6 years ago. The prospect of entering PPAs by these generators was quite
remote. Most of the generators were selling power under STOA/MTOA. Many
generators were not paying transmission charges since LTA had not been
operationalized. Basic issue was the time limit for the LTA to get operationalized and
also applicability of the transmission charges. KSEB felt that this arrangement was
blocking eligibility of other states.
CTU had stated that most of the referred generators had been granted LTA in 2009-10.
Transmission corridors were planned for them which was getting commissioned in
phases. LTA would get operationalized once the identified system is commissioned
and they would be liable to pay transmission charges. System takes around 3 -4 years
to develop. It was also pointed out that the Regulation allowed application with only
target region.
29.2 KSEBL issue was further heard on 26.04.2016 by Hon’ble CERC on Petition No.
249/MP/2015. In the ROP ( date of hearing 19.05.2016) CTU had been directed to file
minutes of SPRC meeting held during 14.3.2016 to 17.3.2016. The petition was listed for
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 53 of 71
hearing on 30.6.2016.
30. STATUS OF PHASE I AND PHASE II OF PROTECTION AUDIT
RECOMMENDATIONS
30.1 The timelines given by Hon’ble CERC to various SR-Constituents for the completion of
their respective Phase-I and Phase-II works of Protection Audit recommendations are given
below:
Sl.
No. Constituent
CERC
Petition No.
/Date of
Order
Date for
completion
of Phase-I
activities
Date for
completion
Phase-II
activities
Remarks
1 APGENCO 146/MP/2013
Date of Order:
20.02.2014
Affidavits dt:06.09.2014 &
17.09.2014 were filed on
behalf of APGENCO in CERC
duly stating that the
implementation of Phase-l &
Phase-II activities of Thermal &
Hydel Stations would be
completed by 31-05-2015 & 31-
12-2015 respectively, pursuant
to CERC order dated
20.02.2014 against the Petition
No.146/MP/ 2013.
APGENCO informed vide
their letter dated
17.02.2016 that the
process of filing single
Affidavit on behalf of
APGENCO Thermal &
Hydel stations in CERC is
under process to consider
for extension of time up to
30.07.2016 & 31.12.2017
respectively for
implementation of all the
identified activities of
APGENCO Thermal &
Hydel Substations.
2 APTRANSC
O
IA No.
10/2016
95/MP/2015
Date of Order :
15.06.2016
31.08.2016 31.08.2016 ‘Taking note of difficulty
projected by the petitioner,
we allow time to the
petitioner till 31.8.2016 as
a last opportunity for
completion of Phase-I and
Phase-II of protection
audit remarks failing
which the petitioner shall
be liable for proceedings
under Section 142 of the
Electricity Act, 2003 and
other relevant provisions’
3 TSGENCO 146/MP/2013
Date of Order :
20.02.2014
TSGENCO made Affidavit dt:
16.12.2014 on status of
implementation of Phase-I and
Phase-II activities pursuant to
CERC order dated 20.02.2014
(Petition No. 146/MP/2013) and
informed to complete the above
subject work on 31.08.2015.
TSGENCO have filed an
affidavit before Hon’ble
CERC seeking further
time extension up to
31.03.2017 for
implementation of balance
activities of Phase-I and
Phase-II recommendations
against the CERC Order
dated 20.02.2014 in
respect of petition no:
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 54 of 71
146/MP/2013 with IA.
36/2013.
4 TSTRANSC
O
83/MP/2015
Date of Order :
14.5.2015
31.10.2015 31.08.2016 TSTRANSCO informed
that Phase-I activities are
under advanced stage of
completion as Erection &
commissioning of the
same are in progress.
5 KPCL 265/MP/2015
Date of Order:
03.05.2016
374/MP/2014
Date of Order:
18.8.2015
31.12.2016
31.10.2015
31.12.2016
31.12.2015
"Taking note of difficulty
projected by the petitioner,
we allow time to the
petitioner till 31.12.2016
as a last opportunity for
completion of Phase-I and
Phase-II of protection
audit remarks. If the
petitioner fails to comply
with the order, it shall be
liable for action under
Section 142 of the
Electricity Act, 2003 as
already observed in our
order dated 20.2.2014 in
Petition No.
146/MP/2013.”
6 KPTCL 374/MP/2014
Date of Order :
18.8.2015
15.1.2016 15.1.2016 KPTCL filed a separate
application before CERC
on 07.01.2016 seeking
time extension up
to 31.05.2017, and the
same is under
consideration by CERC.
7 KSEB 86/MP/2014
Date of Order :
18.8.2015
31.12.2015
31.12.2015
(excepting for
R&M works at
Idduki HEP for
which time
extension is up
to 31.3.2016)
KSEB filed an affidavit
dated 20.05.2016 seeking
further time extension up
to 31.11.2016 (Phase-I)
and up to 31.12.2017
(Phase-II) except for
Idukki HEP for which the
time extension has been
sought up to 31.12.2020.
In the ROP for date of
hearing 14.07.2016
‘Commission directed the
petitioner to implead
Southern Regional Power
Committee and Southern
Regional Load Despatch
Centre as party to the
petition and file revised
memo of parties………..
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 55 of 71
The petition shall be listed
for hearing 30.8.2016’
8 TANTRANS
CO
374/MP/2014
Date of Order :
18.8.2015
30.6.2016 30.11.2016
9 NPCIL 146/MP/2015
Date of Order :
20.02.2014
01.05.2014 01.09.2014 As per the status furnished
to SRPC, out of the total 9
recommendations given
covering KAPS and
MAPS, two no. of
recommendations
pertaining to MAPS are
yet to be complied with.
30.2 From the above, it can be kindly seen that time extensions given to various Constituents
have been completed. As such, following SR-Constituents, viz., APGENCO,
APTRANSCO, TSGENCO, TSTRANSCO, KPCL, KPTCL, KSEB, NPCIL (MAPS),
Spectrum PGL, GMR Barge - Kakinada, Konaseema GPL, APGPCL Vijjeswaram Stage-I
& Stage-II), & LANCO-Kondapalli PL have been requested to kindly approach Hon’ble
CERC for obtaining further time extension for the completion of their respective pending
protection audit works.
31. GRID OPERATION
Salient Achievements
Reserve Regulatory Ancillary Services (RRAS) came in operation w.e.f. 12.04.2016.
Efforts put by KPCL to bring back three units and two lines at Sharavathy HEP
within a very short duration (almost 30 -35 days).
SRLDC had developed web based outage coordination system for requisitioning the
OCC approved outages.
KKNPP Unit-1 achieved 100 % PLF in the month of June 2016.
200 MW out of 250 MW Ananthapur Ultra Mega Power project in Andhra Pradesh
was declared on COD on 09.05.2016. NTPC was the developer of the project.
TN had absorbed record 94.65 MU of Wind generation out of total energy
consumption of 305.67 MU on 04th
July 2016.
31.1 Grid events/highlights during March 2016
Andhra Pradesh met a maximum demand of 7,680 MW on 22.03.2016 which is the
maximum till date.
Kerala met a maximum demand of 3,860 MW on 28.03.2016 which is the maximum till
date.
Puducherry met a maximum demand of 352 MW on 29.03.2016 which is the maximum
till date.
Southern Region met a maximum demand of 40,899 MW on 21.03.2016 which is the
maximum till date.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 56 of 71
Kerala met a per day maximum energy consumption of 76.43 MU on 31.03.2016 which
is the maximum till date.
Tamil Nadu met per day maximum energy consumption of 327.02 MU on 22.03.2016
which is the maximum till date.
Puducherry met a per day maximum energy consumption of 7.45 MU on 29.03.2016
which is the maximum till date.
CEA vide letter dated 04.04.2016 had informed that 2nd
Unit of Vizag TPP (2x520
MW) of M/s Hinduja Power Corporation Limited of Andhra Pradesh had achieved full
load on 31.03.2016 and declared commissioned.
Yeramarus Unit I of capacity 800 MW of KPCL achieved full load on 29.03.2016.
BTPS Unit III of Capacity 700 MW of KPCL achieved full load on 01.03.2016
Singareni - U1 of TSGENCO test synchronization was carried out on 12th
Mar 2016
achieved full load on 13.03.2016.
SR I, PGCIL vide letter dated 31.03.2016 had informed that consequent to successful
completion of Trial Operation, the following assets under “ Transmission System for
connectivity for NCC Projects, Ltd. (1320 MW) have been put under Commercial
Operation w.e.f 00:00 hrs of 22nd
March 2016 :
NCC Generation Switchyard - Nellore Pooling Station 400 kV (Quad) D/C line.
2 Nos 400 kV line bays at Nellore Pooling Station for termination of NCC
Generation Switchyard-Nellore Pooling Station 400 kV(Quad) D/C line.
Transmission charges for the above assets are payable with effect from 22nd
March 2016.
2nd
Unit stringing on existing 220 kV DC/SC line from 400/220 kV S/S
Mahadevamangalam to 220 kV S/S Palamaneru in Chittur District of ckm 57.11 was
carried out and charged on 01.03.2016 by APTRANSCO.
SR II, PGCIL vide letter dated 31.03.2016 notified that the OPGW communication
links along with associated Communication Equipment and EPABX systems (hot line
speech Communication Systems for Grid Operation) as per the list enclosed at
Annexure under the project - “Fiber Optic communication System for Central Sector
Sub-Stations & Generating Stations in Southern Region” are successfully
commissioned. The above assets are put into service for commercial operation w.e.f.
31.03.2016.
400 kV Jammangudu-Kurnool D/C line was idle charged on 31st Mar 2016 by
APTRANSCO.
LILO of 400 kV Malkaram-VTPS at Suryapet was first synchronised to grid on 30th
Mar 2016 by TSTRANSCO.
220 kV D/C line from 220 KV Fabcity to 132 kV Mamidipalli SS Length of 19.972
ckm was commissioned on 31.03.2016 by TSTRANSCO.
400 kV LILO VTS-Malkaram (Ckt-I) to Suryapet SS (3.655kM) was commissioned
on 30.03.2016 by TSTRANSCO.
220/132 kV Parigi SS with 1 x 100 MVA Transformer in Rangareddy District was
commissioned on 04.03.2016 by TSTRANSCO.
220 kV SS Shapurnagar in R.R.Dis of 2 x 160 + 1 x 100 existing MVA was
augmented to a capacity of 3 x 160 MVA and was commissioned on 02.03.2016 by
TSTRANSCO.
220 kV SS Tandur in R.R.Dist 2 x 100 existing MVA was augmented to a capacity of
3 x160 MVA and commissioned on 03.03.2016 by TSTRANSCO.
220 kV SS Warangal in Warangal Dist of 1 x 130 + 2 x 100 existing MVA was
augmented to a capacity of 2 x 160 + 1 x 100 MVA and was commissioned on
06.03.2016 by TSTRANSCO.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 57 of 71
220 kV SS Budidampadu in Khammam Dist of 2 x 100 existing MVA was
augmented capacity is 1 x 160 + 1 x 100 MVA commissioned on 10.03.2016 by
TSTRANSCO.
220 kV SS Shamshabad in R.R.Dist of 2 x 100 existing MVA was augmented to a
capacity of 3 x100 MVA and was commissioned on 12.03.2016 by TSTRANSCO.
220 kV SS Durshed in Karimnagar Dist of 2 x 160 + 1 x 100 existing MVA was
augmented to a capacity of and was 3 x 160 MVA and was commissioned on
14.03.2016 by TSTRANSCO.
220 kV SS Sadasivpet in Medak Dist of 2 x100 existing MVA was augmented to a
capacity of 1 x 160 + 1 x100 MVA and was commissioned on 18.03.2016 by
TSTRANSCO.
220 kV SS Nirmal in Adilabad dist of 2 x100 existing MVA was augmented to a
capacity of 3 x 100 MVA and was commissioned on 18.03.2016 by TSTRANSCO.
220 kV SS Jagitial in Karimnagar Dist of 2 x 100 existing MVA was augmented to a
capacity of 3 x 100 MVA and was commissioned on 19.03.2016 by TSTRANSCO.
220 kV SS Kalwakurthy in Mahaboobnagar dist of 1 x 160 + 2 x 100 existing MVA
was augmented to a capacity of 2 x 160 + 1 x 100 MVA and was commissioned on
21.03.2016 by TSTRANSCO.
220 kV SS Manuguru in Khammam dist of 1 x 160 + 2 x 100 existing MVA was
augmented to a capacity of 2 x 160 + 1 x 100 MVA and was commissioned on
31.03.2016 by TSTRANSCO.
31.2 Grid events/highlights during April 2016
Andhra Pradesh met a maximum demand of 7,740 MW on 28.04.2016 which is the
maximum till date.
Telangana met a maximum demand of 7,115 MW on 04.04.2016 which is the
maximum till date.
Karnataka met a maximum demand of 9,776 MW on 12.04.2016 which is the
maximum till date
Kerala met a maximum demand of 4,004 MW on 27.04.2016 which is the maximum
till date.
Tamil Nadu met a maximum demand of 15,240 MW on 29.04.2016 which is the
maximum till date.
Puducherry met a maximum demand of 370 MW on 23.04.2016 which is the
maximum till date.
Southern Region met a maximum demand of 41607 MW on 07.04.2016 which is the
maximum till date.
Andhra Pradesh met a per day maximum energy consumption of 169.15 MU on
28.04.2016 which is the maximum till date.
Telangana met a per day maximum energy consumption of 159.62 MU on 05.04.2016
which is the maximum till date.
Karnataka met a per day maximum energy consumption of 223.35 MU on 20.04.2016
which is the maximum till date.
Kerala met a per day maximum energy consumption of 80.44 MU on 29.04.2016
which is the maximum till date.
Tamil Nadu met per day maximum energy consumption of 345.62 MU on 29.04.2016
which is the maximum till date.
Puducherry met a per day maximum energy consumption of 7.83 MU on 22.04.2016
which is the maximum till date.
Southern Region met a per day maximum energy consumption of 962.01 MU. which
is the maximum till date
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 58 of 71
Hon’ble CERC had issued CERC (IEGC) Regulations (Fourth Amendment) 2016 on
06.04.2016.
Tamil Nadu had added 0.45 MW in windmill capacity (Private sector).
CEA vide letter dated 03.05.2016 had informed that 2nd
Unit of M/s IL & FS Tamil
Nadu Power Company Limited (ITPCL) (2 x 600 MW) in Tamil Nadu had achieved
full load on 18.04.2016 and declared commissioned.
2nd
Unit of M/s IL & FS Tamil Nadu Power Company Limited (ITPCL) (2x600 MW)
in Tamil Nadu had declared COD from 00:00 Hours of 30.04.2016.
SR I, Powergrid vide letter dated 30.04.2016 had informed that consequent to
successful completion of Trial Operation, the following assets under “Transmission
System for Ultra Mega Solar Park in Anantapur Dist, Andhra Pradesh – Part – A
(Phase –I)” have been put under Commercial Operation w.e.f 00:00 hrs of 28th
April
2016 :
1 No. 500 MVA, 400/220kV Transformer at NP Kunta Pooling Station along
with associated bays and equipment.
LILO of 400 kV Kadapa (Cuddapah) – Kolar S/C line at NP Kunta Pooling
Station.
2 Nos of 220 kV line bays at NP Kunta Pooling Station
Transmission charges for the above assets are payable with effect from 28th
April 2016.
220 kV D/C line from Jurala SS to Lower Jurala Hydro power of 22 ckm was
commissioned on 29.04.2016 by TSTRANSCO.
220 kV SS at Dichpally in Nizamabad Dist of 1 x 160 + 2 x 100 existing MVA
capacity was augmented to a capacity of 2 x 160 + 2 x 100 MVA and was
commissioned on 06.04.2016 by TSTRANSCO.
220 kV SS at Bongiri in Nalgonda Dist of 2 x 100 existing MVA capacity was
augmented to a capacity of 3 x 100 MVA and commissioned on 16.04.2016 by
TSTRANSCO.
220 kV SS at Waddekothapally in Warangal Dist of 2 x 160 + 1 x 100 MVA existing
Capacity was augmented to a capacity of 3 x 160 MVA and was commissioned on
25.04.2016 by TSTRANSCO.
220 kV SS at Miryalguda in Nalgonda Dist of 2 x160 + 1 x 100 existing MVA was
augmented to a capacity is of 2 x 160 + 2 x 100 MVA and was commissioned on
26.04.2016 by TSTRANSCO.
220 kV SS at Renigunta in Chitoor Dist of 3 x 100 MVA was augmented to a capacity
of 2 x100 + 1 x 160 MVA and was commissioned on 01.04.2016 by APTRANSCO.
220 kV SS at Chinakampally in YSR Dist of 1 x 100 MVA was augmented to a
capacity of 1 x 100 + 1 x 160 MVA and was commissioned on 02.04.2016 by
APTRANSCO.
220 kV SS at Kondapally in Krishna Dist of 3 x100 MVA Capacity was augmented to
a capacity of 2 x 100 + 1 x 160 MVA and was commissioned on 25.04.2016 by
APTRANSCO.
31.3 Grid events/highlights during May 2016
Tamil Nadu had added 12 MW in windmill capacity (Private sector).
220 kV SS at Siddipet in Medak Dist of 2 x 100 existing MVA capacity was
augmented to a capacity of 1 x 160 + 2 x 100 MVA and was commissioned
on13.05.2016 by TSTRANSCO.
220 kV SS at Minpur in Medak Dist of 1 x 160 + 2 x100 existing MVA capacity was
augmented to a capacity of 2 x 160 + 1 x 100 MVA and commissioned on 14.05.2016
by TSTRANSCO.
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 59 of 71
220 kV SS at Minpur in Nalgonda Dist of 1 x 160 + 2 x 100 MVA existing Capacity
was augmented to a capacity of 2 x 160 +1 x 100 MVA and was commissioned on
20.05.2016 by TSTRANSCO.
220 kV SS at Warangal in Warangal Dist of 2 x 160 + 1 x 100 MVA was augmented
to a capacity is of 3 x 160 MVA and was commissioned on 26..04.2016 by
TSTRANSCO.
31.4 Grid events/highlights during June 2016
Tamil Nadu had added 6 MW in windmill capacity (Private sector) during June 2016.
SGPL vide letter dated 30.05.2016 informed that Unit I of Sembcorp Gayatri Power Ltd
(SGPL) 660 MW was synchronized with Grid at 19:26:52 Hrs on 26th
May 2016.
220 kV RTPP Chinnakampally 3rd
& 4th
circuit in YSR Dist of 121ckm was
commissioned on 16.06.2016 by APTRANSCO.
2nd
Circuit from 400 kV Gajwel to loc No 34 of 132 kV line from Gajwel to Thumki
Bolarum line of 10 ckm was commissioned on 08.06.2016 by TSTRANSCO.
220 kV SS at Budidampadu in Kammam Dist(9hrs Agricultural) of 1 x 100+1x160
existing MVA capacity was augmented to a capacity of 2 x160 MVA and
commissioned on 08.06.2016 by TSTRANSCO.
220 kV SS at Kondamallepally in Nalgonda Dist of 3 x 100 MVA existing Capacity
was augmented to a capacity of 4 x 100 MVA and was commissioned on 13.06.2016 by
TSTRANSCO.
220 kV SS at Jurala in Mehaboobnagar Dist (9 hrs Agricultural) of 2 x100 MVA
existing Capacity was augmented to a capacity is of 3 x 100 MVA and was
commissioned on 21.06.2016 by TSTRANSCO.
220 kV SS at Moulali in Ranga Reddy Dist of 2 x 80 + 1 x 50 MVA existing Capacity
was augmented to a capacity of 3 x 80 + 1 x 50 MVA and was commissioned on
22.06.2016 by TSTRANSCO.
125 MVAR Vijayawada Bus reactor – III was charged by PGCIL on 19.06.2016.
NP Kunta ICT – II & III (400/220 kV, 500 MVA each) charged by PGCIL on
02.07.2016 & 11.07.2016.
Udumalpet – Pallakad SPS implemented by effect from 20.06.2016 by KSEBL.
Jammalamadugu – Kurnool commissioned on 29.06.2016 by APTRANSCO.
SR I, Power grid vide letter dated 11.07.2016 informed that consequent to successful
completion of Trial Operation, the following assets under “Transmission System for
Ultra Mega Solar Park in Anantapur Dist, Andhra Pradesh – Part – A (Phase –I)” have
been put under Commercial Operation w.e.f 00:00 hrs of 11th
July 2016 :
2 No. 500 MVA, 400/220kV Transformer at NP Kunta Pooling Station along
with associated bays and equipment.
1 no. 125 MVAR 420kV Bus Reactor along with associated bays and
equipment.
SR II, Power grid vide letter dated 22.06.2016 informed that consequent to successful
completion of Trial Operation, the following asset under transmission system
associated with “System strengthening – XX in Southern Regional Grid” have been put
under Commercial operation with effect from 00:00 hours of 22nd
June 2016:
1 X 500 MVA, 400/220/33kV ICT at Malekuttaiayur Substation along with
associated bays and equipments.
Transmission charges for the above assets are payable with effect from 22nd
June 2016.
31.5 Installation of Shunt Capacitors
Progress of installation of capacitors by the constituents during the year
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 60 of 71
2016-17 is furnished in the Table below:
(Figures in MVAR)
State Requirement
for 2016-17
Installed during the year 2016-
17
Andhra Pradesh 239.8 0
Telangana 115.20 0
Karnataka 56.31 0
Kerala 10.00 0
Tamil Nadu 51.00 0
Puducherry 16.80 0
31.6 Demand Variation (Peak Vs Off-peak)
Issue regarding large variation between minimum and maximum demands has been under
the consideration of TCC/SRPC. The issue is also being discussed in the monthly
Meetings of OCC. Following was observed with regard to the period from March 2016 to
June 2016:
Descripti
on
Minimum to Maximum Demand Variation %
Andhra
Pradesh Telangana Karnataka Kerala Tamil Nadu Puducherry
Southern
Region
March 2016
Highest 28.75 22.58 19.41 34.09 27.33 32.66 26.75
Date (Day) 29.03.2016
(Tuesday)
19.03.2016
(Saturday)
13.03.2016
(Sunday)
27.03.201
6 (Sunday)
14.03.2016(
Monday)
03.03.2016
(Thursday)
29.03.2016
(Tuesday)
Lowest 14.29 8.89 10.53 25.18 10.16 14.90 16.32
Date
(Day)
27.03.2016
(Sunday)
12.03.2016
(Saturday)
18.03.2016
(Friday)
11.03.201
6 (Friday)
27.03.2016
(Sunday)
13.03.2016
(Sunday)
03.03.2016
(Thursday)
Average 19.86 15.12 15.66 30.71 18.59 24.83 22.79
April 2016
Highest 31.81 24.23 22.73 32.87 23.37 35.43 14.14
Date
(Day)
08.04.2016
(Friday)
17.04.2016
(Sunday)
09.04.2016
(Saturday)
15.04.2016
(Friday)
11.04.2016(
Monday)
11.04.2016
(Monday)
11.04.2016
(Monday)
Lowest 9.86 11.44 12.89 24.90 9.16 13.63 5.58
Date
(Day)
06.04.2016
(Wednesday)
24.04.2016
(Sunday)
14.04.2016
(Thursday)
28.04.2016
(Thursday)
03.04.2016(
Sunday)
14.04.2016
(Thursday)
08.04.2016
(Friday)
Average 18.83 16.77 16.66 28.55 14.54 22.54 10.61
May 2016
Highest 31.67 67.12 42.34 42.80 37.65 49.70 28.43
Date
(Day)
12.05.2016
(Thursday)
06.05.2016
(Friday)
20.05.2016
(Friday)
20.05.2016
(Friday)
17.05.2016
(Tuesday)
16.05.2016
(Monday)
20.05.2016
(Friday))
Lowest 14.85 14.82 16.83 24.33 9.24 13.25 12.51
Date
(Day)
17.05.2016
(Tuesday)
07.05.2016
(Thursday)
17.05.2016
(Tuesday)
14.05.2016
(Saturday)
01.05.2016(
Sunday)
08.05.2016
(Sunday)
10.05.2016
(Tuesday)
Average 22.34 25.87 22.45 32.47 19.45 25.14 16.60
June 2016
Highest 29.96 34.90 36.82 47.26 30.31 34.63 34.78
Date 02.06.2016 07.06.2016 03.06.2016 30.06.2016 24.06.2016 24.06.2016 30.06.2016
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 61 of 71
(Day) (Thursday) (Tuesday) (Friday) (Thursday) (Friday) (Friday) (Thursday)
Lowest 14.69 13.75 20.53 28.65 12.31 17.72 14.48
Date
(Day)
21.06.2016
(Tuesday)
12.06.2016
(Sunday)
05.06.2016
(Sunday)
10.06.2016
(Friday)
05.06.2016
(Sunday)
05.06.2016
(Sunday)
19.06.2016
(Sunday)
Average 19.76 22.72 27.48 37.11 20.97 26.76 21.18
Note: Highest &lowest figures for the month have been computed based on the daily values.
31.7 Frequency of Operation of Southern Grid
Frequency of operation of the Southern Grid for the period under review is furnished
below please:
Month
Percentage of time when frequency (Hz) was
Month
Avg.
freq.
Less
than
49.5
49.5
to
49.7
49.7
to
49.9
49.9
to
50.0
50.0
to
50.05
50.05
to
50.20
More
than
50.20
Within
IEGC
range
49.9 to
50.05
March 2016 0.00 0.00 10.79 42.66 26.84 19.56 0.15 69.50 49.99
April 2016 0.00 0.07 14.21 43.89 25.63 16.11 0.09 69.52 49.98
May 2016 0.00 0.03 7.51 39.28 30.67 22.20 0.31 69.95 50.00
June 2016 0.00 0.04 8.31 43.35 29.93 18.34 0.03 73.27 49.99
During the period under review, caution / violation messages (Annexure- XXIV) were
issued to the constituents by SRLDC. Matter regarding overdrawal at low frequency by
some constituents is being regularly deliberated in the OCC forum. Utilities are requested
to kindly adhere to Regulations in this regard.
31.8 Reasons for demand -supply gap and its variation:
31.8.1 In 4th
NPC meeting held on 10.12.2015 (MoM dated 1.1.2016) the following was noted:
Reason for demand-supply gap needed to be clearly mentioned to reflect true picture
of power supply position in different states and also to invite attention of various
agencies including policy makers to the specific problem areas in the power sector
for suitable solution. It was requested to RPCs to advise the states in their respective
regions to intimate broad break-up of demand-supply gap due to various reasons, or
at least, the main reason(s) for demand-supply gap in each month. It was suggested
that this matter could be discussed in the OCC forum of RPCs on regular basis and
the reasons for demand-supply gap ascertained from the States therein and
communicated to CEA.
RPCs agreed to take action accordingly and furnish above information to CEA along
with the power supply position related data every month.
31.8.2 In the 29th
SRPC, SRPC had informed that the reasons for demand-supply gap had been
sought to reflect true power supply position in the states. Only Kerala is furnishing the
information, other states/UT are kindly requested to furnish the details along with PSP
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 62 of 71
data.
32. THOROUGH REVIEW OF ALL THE DRAWAL POINTS OF STATES FOR
DRAWAL COMPUTATIONS
SRPC vide letter dated 30.10.2015 had suggested a methodology for reviewing the Touch
Points for drawl computations. Issue was further discussed in the 31st CCM wherein the
following was noted:
SRPC and SRLDC would be reviewing node points for installation of SEMs as per
CEA Metering Regulations and would post the details of location ID and formulas on
SRPC website. The same was posted in the SRPC website.
The comments/feedback of the constituents were to be sent to SRPC Secretariat within
two/three weeks’ time to finalize the methodology.
33. TPCIL REQUEST TO EXEMPT DEVIATION CHARGES
33.1 TPCIL vide letter dated 07.01.2016 had requested for to consider the event of 30.12.215
as “force majeure” during CTU system outage (ISTS) and revise the deviation account for
the week 28-Dec-15 to 03-Jan-16.
33.2 The issue was deliberated in the 31st CCM wherein it was noted a Working Group of NPC
was meeting shortly to recommend the methodology for ‘Treatment of Bilateral short term
and collective transaction in case of grid disturbances’.
33.3 In the 5th
NPC meeting held on 08.04.2016 it was noted that the working group would meet
again to arrive at consensus on the methodology. Finalized methodology would be
communicated put up to NPC in the next meeting for approval.
34. SCHEDULING OF NTPC RAMAGUNDAM SOLAR POWER PLANT (10 MW)
34.1 A Special Meeting was held on 17th November 2015, to facilitate scheduling by SRLDC
and identify certain prerequisite criteria to be ensured by NTPC. The issue is being
regularly followed up in the OCC Meetings. NTPC to ensure the technical/regulatory
requirement to enable scheduling by SRLDC.
35. GRID STUDY COMMITTEE (TASK- 2) AUDIT PROGRESS DETAILS
35.1 As per the MoP order dated 16.07.2014, M/s Tractebel Engineering (TE) has been
appointed as the Consultant to conduct the study/ analysis of National Grid. The terms of
reference of the Consultant are as follows:
a) To Review the status of implementation of the recommendations of the Enquiry
Committee (Task-1).
b) Carrying out actual protection audit check for 10% (76 nos.) of 762 substations across
the country to address the gaps, in consultation and collaboration with states and all
stakeholders as per present and future requirements (Task-2).
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 63 of 71
Task-1 for SR-Constituents was completed by the first week of September, 2015. The draft
report on Task-1 prepared by the Consultant was discussed in the third Grid Study
Committee (GSC) meeting held on 18th
November, 2015. Subsequently, the feedback of
the SR-Constituents was furnished to the Consultant by the last week of November, 2015.
Under Task-2, 15 Stations have been identified from SR for protection audit-check by the
Consultant. Various inputs (relating to relay settings, protection parameters, etc.) sought by
the Consultant in this regard have been collected from respective SR-Constituents, and
furnished to the Consultant. Based on the data furnished, Consultant is to provide a set of
recommended settings covering various relays for each of the 15 Stations, and to carry out
physical protection audit of the same. The audit activities proposed to be carried out by the
Consultant during audit-period would cover verification of the status of each CBs, VTs and
CTs and various interlocks in the substation, verification of the relay settings implemented,
checking the availability of Auxiliary supply, etc.
In this regard, protection-audit of all 15 stations from SR has been completed as given
below:
Sl.No Name of the Station Period of Audit
1 Hosur SS of PGCIL (SR-II) 9-11 December, 2015
2 Gazuwaka SS of PGCIL (SR-I) 28-30 December, 2015
3 Alamathy SS of TANTRANSCO 4-6 January, 2016
4 Tirunelveli SS pf PGCIL (SR-II) 8th,
,9th
and 11th
January, 2016
5 Edamon SS of KSEB 18-20 January, 2016
6 NLC TPS-II Station 8–10 February, 2016
7 Nelamangala SS of KPTCL 8–10 February, 2016
8 Gooty SS of PGCIL (SR-I) 12th
, 13th
and 15th
February,
2016
9 Kurnool SS of APTRANSCO 16–18 February, 2016
10 Ramagundam STPS of NTPC 18-20 February, 2016
11 Kothagudem TPS of TSGENCO 14-16 March, 2016
12 Kaiga APS of NPCIL 4-6 April, 2016
13 Guttur SS of KPTCL 4-6 May, 2016
14 Raichur TPS of KPCL 8-10 June, 2016
15 Nagjheri HPS of KPCL 14-16 July, 2016
35.2 The draft report on Task-2 by the Consultant is awaited. It may please be noted in this
regard that based on their audit, the Consultant has given certain general observations w.r.t.
each station, and the final set of recommendations will be provided by M/s Tractebel
Engineering in their final report on Task-2.
36. IMPLEMENTATION OF PROTECTION SUITE / PROTECTION MANAGEMENT
SYSTEM (PMS) FOR SOUTHERN REGION
In the 26th
SRPC meeting held on 20th
December, 2014 at Visakhapatnam, SRPC had
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 64 of 71
approved the proposal to procure Protection Suite (Protection Management System) that
comprises Web based management software and protection setting calculation tool through
PSDF funding. In this regard, steps have been initiated to procure Protection Suite through
PSDF funding. 35 number of licenses for Southern Region utilities are under the scope.
After obtaining approval for PSDF funding, tendering process for executing Protection
Suite would be initiated. For evaluating the technical and financial bids that would be
received, a Committee comprising members from SR- Constituents would later be
constituted with approval from Chairperson, SRPC. Presently, the proposal for PSDF
funding for PMS is under evaluation by the Appraisal Committee of PSDF.
37. OVER VOLTAGE RELAY (OVR) GRADINGS FOR 400 KV TRANSMISSION
LINES OF THE SOUTHERN REGION
37.1 In the past one year, a number of new 400 kV transmission lines have been added to SR
Grid in addition to reconfiguration (including LILO) works of the existing 400 kV
transmission lines. In this regard, a comprehensive exercise for OVR grading 400 kV
transmission lines of SR (existing as on March, 2016) has been carried out, and revised
OVR Gradings proposed to be adopted for these lines (along with study results) had been
circulated to all Constituents for any modifications/ omissions/ comments vide SRPC letter
dated 24.03.2016.
37.2 Final OVR gradings to be adopted for 400 kV lines after incorporating Constituents'
comments have been issued for implementation vide SRPC letter dated 18.04.2014. OVR
gradings have also been kept in SRPC website for easy reference.
38. PROTECTION SYSTEM ANALYSIS GROUP (PSAG-15) MEETING HELD AT
NTPL, TUTICORIN
As decided in the 52nd
Meeting of the Protection Coordination Sub-Committee (PCSC-52)
held on 30.03.2016, a team of PSAG-15 comprising Officials from SRPC, SRLDC, PGCIL
(SRTS-II), KPTCL, and TANTRANSCO visited NTPL, Tuticorin on 12th
April, 2016 to
make an in-depth analysis of the circumstances that led to the GD’s on 14th
and 15th
March,
2016, and suggest suitable actionable measures to avoid recurrence of such incidents in
future.
The Committee gave the following recommendations to NTPL for implementation:
To examine the feasibility of using relays of different make for Main-I and Main-II
line protection on all the lines emanating from NTPL, and implement accordingly.
To consider mutual compensation factors for distance protection at the earliest to avoid
mal-operations associated with coupling phenomenon.
To revise Pole Discrepancy Relay timing from the present 2.5 sec to 1.5 sec.
To perform CRM/ DCRM test on all breakers, and take appropriate steps to ensure
their healthiness.
To take concrete steps to commission the second set of battery bank and battery
charger at the earliest for reliable PLCC communication.
To examine the feasibility of providing line differential protection on all 400 kV lines
emanating from NTPL after it is gets connected by the PGCIL’s fibre optic back-bone.
The Distance Protection Zone-settings adopted by NTPL at their end for NTPL-
TTNPS and NTPL-CEPL lines have been considered with a view to verify whether
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 65 of 71
they are in line with Ramakrishna Committee guidelines. In this regard, the existing
Zone-settings, and new Zone-settings calculated as per Ramakrishna Committee
general guidelines have been made available to NTPL for adoption after suitable
examination.
39. SPECIAL MEETING ON ISSUES RELATING TO RECENT GRID
DISTURBANCES IN GAJUWAKA – SIMHADRI - KALPAKA CORRIDOR HELD
ON 04TH
MAY, 2016 AT SRPC, BENGALURU
A Special Meeting was held on 4th
May, 2016 at SRPC Secretariat, Bengaluru to deliberate
on the issues/ factors that led to recent disturbances in Gajuwaka – Simhadri - Kalpaka
corridor which resulted in trippings of various 400 kV interconnected lines, and finally
culminated in Grid Disturbances at Gajuwaka SS (PGCIL-SRTS1), Vizag SS
(APTRANSCO), and Kalpaka SS (APTRANSCO) during 24-26 April, 2016.
The following actionable measures/steps had been finalised in the Meeting:
Line patrolling protocol & maintenance procedures to be adhered.
Insulator replacement to be carried out up to the firmed up distance.
Hot-line/ Cold-line washing of Insulators & attending to hot-spots.
Silicon Insulator Coatings.
Reducing emissions during commissioning tests of new generating units.
Ensuring supply reliability to Railway Traction network of North Coastal Andhra
Pradesh.
In addition, following protection-specific recommendations have also been given:
Provision of Line differential Protection on all 400 kV transmission lines
interconnecting Gajuwaka SS (PGCIL-STRS1), Simhadri STPP (NTPC), Kalpaka SS
(APTRANSCO), and Hinduja TPS (HNPCL).
Ensuring healthiness of PLCC & Carrier-aided communication.
Provision of GPS/ Time synchronization facility in all 220 kV & above substations/
generation switchyards in Gajuwaka – Simhadri – Kalpaka corridor.
Furnishing of tripping details in compliance of Regulation 5.2 (r) of IEGC.
40. SPECIAL MEETING ON PENDING PROTECTION ISSUES OF M/S KPCL HELD
ON 03.06.2016 AT SRPC, BENGALURU
A Special Meeting was held on 03rd
June 2016 in SRPC Secretariat, Bengaluru to deliberate on
pending protection issues of M/s KPCL. Certain issues were observed to be occurring
recurrently at their major generating stations such as 400/ 220 kV Raichur TPS and 220 kV
Nagjheri PH.
As regards the recurring grid disturbances at Nagjheri PH, specific actionable measures/
recommendations w.r.t. the following issues have been proposed:
Line maintenance issues
SPS Modification at Nagjheri PH
Revising GT back-up protection settings appropriately at Nagjheri PH
Putting 220 kV Nagjheri-Kodasalli lines into service
KPTCL was further recommended to actively undertake re-conductoring (with HTLS type
of conductors) of 220 kV Nagjheri – Ambewadi D/C line, 220 kV Ambewadi – Narendra
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 66 of 71
D/C line, 220 kV Nagjheri – Kodasally D/C line, 220 kV Kaiga-Kodasally S/C line and
furnish an action plan for implementing the same.
KPCL was also recommended to undertake the following remedial measures to avoid breaker
flashovers:
Replacing all porcelain insulators with composite insulators
Carrying out hot-line water washing of all insulators on regular basis.
Applying Room Temperature Vulcanizing (RTV) Silicone high voltage insulator coatings
to all bus-connected ceramic insulators of equipment like CT, PT, CB, Isolators etc.
To take steps to provide dedicated breaker flashover protection to all breakers at Raichur
TPS at the earliest.
Auto-Reclosure scheme implementation on all 220 kV lines emanating from Kali Complex
Line differential protection for 400 kV Raichur-Raichur TPS line-1&2 and 400 kV Raichur-
YTPS and in future lines from Bellary pooling station to nearby generating TPS as frequent
over-reach is being observed with distance protection relays.
D.R and station event logger to be triggered with operation of Main and Back-up protections
of transmission line/ generator /bus-bar protection with proper time synchronization for
performing proper analysis.
Integrity test for Station earth mats in KPCL stations
41. REVIEW OF ISLANDING SCHEMES OF SOUTHERN REGION
There are four Islanding Schemes functional in the Southern Region. However, since their
implementation in 2014, number of network changes (additions/ deletions/ reconfigurations
of transmission elements & generators) have taken place in the grid.
In this regard, a comprehensive exercise of reviewing existing Islanding Schemes
incorporating adverted changes has been carried out. Suitable inputs based on extensive
consultation with the concerned Constituents have been duly factored into in the process.
Document containing the reviewed Islanding Schemes along with the relevant schematics
and necessary system studies has been kept on SRPC website for easy reference.
Concerned Constituents as given below have been requested vide SRPC letter dated
18.07.2016 to kindly initiate steps to implement the reviewed Islanding Schemes by
appropriately configuring the frequency settings of the transmission lines/ ICT’s/
generators as brought out in the document so that they get tripped at the Islanding
frequency of 47.9 Hz.
Name of the
Islanding
Scheme (IS)
Constituents responsible for configuring frequency settings
Hyderabad IS
TSTRANSCO, PGCIL (SRTS-I), NTPC (Ramagundam)
Chennai IS
TANTRANSCO, TANGEDCO, PGCIL (SRTS-II) Neyveli IS
TANTRANSCO, TANGEDCO, NLC, PGCIL (SRTS-II), KSEB
Kudankulam IS
TANTRANSCO, TANGEDCO, PGCIL (SRTS-II), KSEB, CEPL,
STERLITE, IBPTL
(TANTRANSCO is requested to kindly intimate CEPL, STERLITE
and IBPTL in this regard)
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 67 of 71
TSTRANSCO, TANTRANSCO and KSEBL, in their capacity as STU of their respective
states, have also been requested to ensure that all island-participating generators from
Telangana, Tamil Nadu & Kerala respectively are capable of FGMO/ RGMO and House-
load operation.
42. PROTECTION SYSTEM ANALYSIS GROUP (PSAG-16) MEETING HELD AT
AMBEWADI SS HELD ON 18.07.2016
PSAG-16 Meeting was held at Ambewadi SS on 18.07.2016. The Minutes have been
uploaded in the SRPC website. KPCL/KPTCL are requested to kindly initiate action on the
recommendations.
43. PENDING IMPLEMENTATION OF RECOMMENDATIONS OF PROTECTION
COORDINATION SUB-COMMITTEE (PCSC) OF SRPC
The recommendations given in various PCSC meetings to SR-Constituents have been
regularly sent to respective Constituents for implementation. Concerned constituents are
requested to kindly comply with the Recommendations.
44. STUDY PROGRAMME ON THE INTEGRATION OF RENEWABLE ENERGY
RESOURCES INTO THE GRID
The proposal had been discussed in the Techno-Economic sub group of PSDF on
27.05.2016. Modifications based on the observations had been communicated to the sub
group on 13.07.2016.
45. IEGC, FOURTH AMENDMENT REGULATIONS 2016- TECHNICAL MINIMUM
OF GENERATORS / COMPENSATION PROCEDURE FOR SHR & AEC
4th
Amendment to IEGC had been brought out by Hon’ble CERC in which Technical
Minimum of 55 % of MCR/IC and compensation for SHR / AEC for low unit loading had
been envisaged. Compensation Procedure (SRPC) and the Operating Procedure for RSD
(NLDC) had been deliberated in OCC/CC/Special meeting (30.05.2016) / VC (20.06.2016).
Compensation Procedure has been finalized by SRPC Secretariat and uploaded in the
website and the same would be fine tuned with feedback from other RPCs. NLDC is in the
process of finalizing the Operating Procedure for RSD.
46. SCHEDULING/OPERATIONAL ISSUES IN RESPECT OF NP KUNTA UMSPPS – 1
46.1 A Meeting on scheduling/operational issues in respect of NP Kunta Ultra Mega Solar
Power Project Stage – 1 (250 MW) at Ananthapur in Andhra Pradesh was held at SRPC,
Bengaluru on 02.05.2016. (MoM is available at SRPC web site).
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 68 of 71
46.2 APSLDC had given consent and is scheduling the NP Kunta UMSPPS-1 as the installed
capacity criteria of IEGC to be scheduled by SRLDC had not been met. Other actionable
points need to be ensured (as enumerated in the MoM) by the concerned entities to enable
smooth transfer of scheduling responsibility to SRLDC as and when it takes place.
47. COMMERCIAL COMMITTEE ISSUES
The following issues were discussed in the 31st CC meeting and brought to the attention of
SRPC/TCC.
Assessment of Metering requirement
CTU, STUs and generators were to furnish assessment of SEM requirement for the
next one-year period regularly. The Assessment of Metering requirement was
discussed in the 31st CCM wherein the following was noted:
CC forum had requested all Regional entities to furnish the SEM requirements to
the Committee. Sufficient spare SEMs, DCDs and accessories are also to be
factored in the projected requirement.
Issuing Reactive Energy Accounts –Erratic readings by SEM
SRLDC had informed that erratic readings in high voltage cumulative readings (used
for reactive account) were observed from December 2015 to May 2016. Abnormal
readings were detected in SEMs located at Kayathar, Thiruvalam, Karaikudi and
Kochi.
CC forum had agreed to issue the reactive energy to issue the reactive energy accounts
by eliminating the erratic reading making H register value as Zero (0) for the week.
Calibration and testing of SEMs in the region
As per CEA metering regulations 2006, 18.1(a), interface meters are to be tested at
least once in 5 years. In this regard, the owners of SEMs are requested to initiate
necessary action. All the utilities were requested to furnish the database, regarding the
previous date of calibration and tests carried out, to SRLDC. PGCIL and other
utilities were requested to initiate the process of Calibration of Testing of Meters in a
phased manner to meet the regulatory requirement.
Non Availability of SEMs as per CEA metering regulations
A consolidated list of locations where SEMs were not available as per CEA Metering
Regulations is given below:
S.NO Element Non availability of
SEM
To be installed by
1 MAPS: GTs (HV side) Stand By CTU/MAPS
2 Vallur : 400kV NCTPS lines
1 & 2
Check NCTPS/CTU
3 400kV Mysore-Nelamangala
Lines 1&2
At Mysore CTU
4 400kV Hoody-Kolar Lines
1&2
Hoody KPTCL
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 69 of 71
5 400kV UPCL-Hassan line
1&2
UPCL CTU/KPTCL/UPCL
6 400kV Nelamangala-Hassan
line
Nelamangala CTU/KPTCL
7 400kV Talaguppa-Hassan
Line
Talaguppa KPTCL
8 400kV Guttur-Hiriyur lines
1&2
Both Guttur and
Hiriyur
CTU / KPTCL
9 Bonakaalu-Chillakallu lines
1&2
Bonakaalu end of 132
kV Line
TS
10 400kV Hiriyur-BTPS lines
1&2
Both Hiriyur and BTPS KPTCL
SRTS II, PGCIL had stated that irrespective of the ownership of the bay and line, the
owner of the sub-station shall install the SEM at their stations.
Forum requested that the concerned utilities (SRTS II / PGCIL, KPTCL, UPCL, TN)
to install the SEMs in the above locations immediately.
Approval of Metering Scheme for new Generation and Transmission scheme
In the 22nd
and 28th
CCM, it was decided that all the regional entities, new
Generating Stations and CTU have to submit the Metering Scheme for the new
projects and Substations to CCM forum for the approval at least one year in advance.
It was noted that metering scheme does not only imply installation of SEMs, but also
includes finalising the accounting philosophy. Also, since transmission projects
come up in a planned manner, SRLDC suggested that it should not be a problem for
PGCIL to estimate and submit the SEM assessment in advance.
All constituents were requested to submit the Metering scheme to SRLDC / SRPC
with the requisite documents to get it approved in the CCM of SRPC.
MEPL Metering Scheme Approval
The Commercial committee approved the metering scheme as proposed by MEPL.
Submission of C1-C4 formats for New Element Charging
As per the new NLDC procedure, complete C1-C4 format need to be submitted,
soon after successful trial operation, to declare COD.
Failure to intimate new Bay charging details to SRLDC
All the entities were requested to inform the SLDC/SRLDC and the other end utility
(if applicable) regarding the bay changing works etc., that affect commercial
accounting issues to have effective and correct accounting system.
Non-compliance/Pending Issues as per 2nd
Meeting of Nodal Officers for SEM Data
Coordination
It was noted that most of the SEM issues raised are yet to be resolved
48. REVIVAL OF UNITS AT SHARAVATHI GENERATING STATION
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 70 of 71
Updated status on revival of units / other facilities is given in the table below:
Unit/Line Status
Unit-7, 6, 8, 9 & 10 revived on 23.03.2016, 29.03.2016, 03.04.2016, 28.06.2016 and
08.07.2016 respectively
Unit-3, 4 & 5 July 2016
Unit-1 & 2 August 2016
Shimoga Line-3, 4 and Talaguppa Line - 2 restored on 21.03.2016, 26.03.2016 and
27.06.2016
Sharavathy Sirsi-1 & 2 July 2016
Shimoga 1, Talaguppa-3, Talaguppa-1 &
Balligave
August 2016
49. REFERENCE FROM MNRE REGARDING COMPILATION OF DATA FOR
MEETING RENEWABLE ENERGY TARGETS OF 175 GW BY 2020
MNRE/ MoP /CEA vide letters dated 02.03.2016, 22.03.2016 and 29.03.2016
respectively had communicated regarding compilation of data for meeting renewable
energy targets of 175 GW by 2020. Concerned State Utilities/Generating companies are
requested to furnish the data suggested by MNRE. SLDCs are also requested to
coordinate and furnish the data for the generators in their control area.
50. PROVIDING INFORMATION REGARDING COMMISSIONING AND
DECLARATION OF COD OF POWER GENERATING UNITS
CEA letter dated 31.05.2016 (Annexure-XXV ) had requested that all related information
for date of commissioning and commercial operating of units may kindly be informed to
OPM Division of CEA so as to update CEA reporting system / database. Information may
be arranged to be sent to the following e-mail ids.
ceopmcea@yahoo.com, mgrceaopm@gamil.com, targetopmcea@gmail.com &
shekhar_cea@yahoo.com
51. FORECASTING, SCHEDULING AND DEVIATION SETTLEMENT OF WIND
AND SOLAR GENERATING STATIONS AT THE STATE LEVEL
Hon’ble CERC in its Order dt.13.07.2016 in respect of Petition No. 91/MP/2014 & I.A.
No. 20/2014 had noted the following:
‘….38. The Forum of Regulators (FoR) has evolved a „Model Regulations on
Forecasting, Scheduling and Deviation Settlement of Wind and Solar Generating Stations
at the State level‟ (Model Regulations), which outlines a model for operational and
commercial management of variable RE sources. The objective of above Model
Regulations is to facilitate large-scale grid integration of solar and wind generating
stations while maintaining grid stability and security as envisaged under the Grid Code,
through forecasting, scheduling and commercial mechanism for deviation settlement of
these generators. The Model Regulations have been proposed to be applicable to all wind
Agenda for 29th TCC & 30th SRPC Meetings to be held on 26th /27th Aug. 2016 Page 71 of 71
and solar generators which are connected to the State grid, including those connected via
pooling stations, and selling power within or outside the State………..
……………………
40. We are of the view that the Model Regulations on Forecasting, Scheduling and
Deviation Settlement of Wind and Solar Generating Stations at the State level have been
evolved to address the issues of forecasting, scheduling and settlement of over/under
drawl of power arising out of over /under injection of power from renewable sources
which are connected to the State grid and selling power within or outside the State. The
State Electricity Regulatory Commissions are advised to implement these regulations in
letter and spirit to ensure grid integration of huge renewable resources as envisaged to be
connected to grid in next 5 to 7 years.’
52. SKILL PLAN FOR POWER SECTOR BASED ON THE ASSESSED SKILL GAP IN
THE SECTOR
CEA vide letter dated 04.07.2016 (Annexure-XXVI) had informed that a Meeting on
Skill Plan for Power Sector was conducted in MoP on 01.07.2016. The main emphasis
was on the following:
The Report has to be submitted by PSSC by 10th
of July, 2016 clearly indicating the
needs of training and skill gaps in power sector.
All the data captured, analysis made and other facts in the draft skill plan have to be
validated by CEA before finalization of the Report.
Further to this, MoP vide their letter No. 7/5/2015-T&R dated 01-07-2016 had sought
information in the matter. Based on the letter of MoP a proforma has been prepared. It is
requested that the relevant information pertaining to the sector/sub-sector as per the proforma
may please be arranged to be sent to CEA at mail id ceahrd@gmail.com.
53. REIMBURSEMENT OF SRPC EXPENDITURE
Statement showing net amount payable by Member Utilities of SRPC for the year 2016 -17,
after adjustment of surplus/deficit for the previous period is furnished in Annexure-XXVII.
Members are kindly requested to ensure payment.
54. DATE & VENUE OF THE NEXT SRPC MEETING
**************
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