Office of the Chief Engineer / SLDC
SLDC Building, Ablowal, Patiala-147001
Detailed Operating Procedure
For
Energy Accounting and Deviation Settlement of State Entities
In accordance with
Punjab State Electricity Regulatory Commission (Deviation Settlement Mechanism
and related matters) Regulations, 2020
To be approved by
Punjab State Electricity Regulatory Commission
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
1. OUTLINE:-
This procedure is in accordance with the Punjab State Electricity Regulatory Commission
(Deviation Settlement Mechanism and related matters) Regulations, 2020, hereinafter
referred as "DSM Regulations". All the applicants shall abide by the provisions of the
Regulations. In case of any inconsistency in the provisions of this procedure with the
Act/Regulations/Rules framed under the Act, the provisions of the Act/Regulations/Rules
shall prevail.
2. Definitions and Interpretation
i. ‘Act’ means the Electricity Act, 2003 (36 of2003);
ii. ‘Actual drawal’ in a time-block means electricity drawn by a Buyer, as measured by the
interface meters;
iii. ‘Actual injection’ in a time-block means electricity generated or supplied by the Seller, as
the case may be, as measured by the interface meters;
iv. ‘Area Clearing Price (ACP)’ means the price of a time block electricity contract
established on the Power Exchange after considering all valid purchase and sale bids in
particular area(s) after market splitting, i.e. dividing the market across constrained
transmission corridor(s);
v. ‘Buyer’ means a person, including distribution licensee, deemed distribution licensees or
open access consumer, purchasing electricity through a transaction scheduled in
accordance with the regulations applicable for short-term open access, medium-term
open access and long term access;
vi. ‘Central Commission (CERC)’ means Central Electricity Regulatory Commission referred
to in subsection (1) of Section 76 of the Act.
vii. ‘Connectivity Regulations' means the Punjab State Electricity Regulatory Commission
(Terms and Conditions for Intra-state Open Access) Regulations, 2011,as amended from
time to time and shall include any subsequent amendment thereof;
viii. ‘Commission' means the Punjab State Electricity Regulatory Commission referred to in
subsection (1) of section 82 of the Act;
ix. ‘Day Ahead Market (DAM)’ means a market where physical delivery of electricity occurs
on the next day (T+1) of the date of transaction (T) and is governed by the Central
Electricity Regulatory Commission (Power Market) Regulations, 2010 (as amended from
time to time), the Rules and Bye-Laws of the Power Exchanges as approved by the Central
Commission;
x. ‘Daily Base DSM Charge’ means the sum of charges for deviations for all time blocks in a
day payable or receivable as the case may be, excluding the additional charges specified
under Regulation 10 of DSM Regulations;
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
xi. ‘Deviation’ in a time-block for a Seller means its total actual injection minus its total
scheduled generation and for a Buyer means its total actual drawal minus its total
scheduled drawal;
xii. ‘Deviation Settlement Mechanism’ shall mean and include the framework for energy
accounting, deviation accounting, rules for pricing of deviation(s) payable and receivable
by the State entities and other design parameters as specified under Regulation 6 of DSM
Regulations;
xiii. ‘Full Open Access Consumer’ shall mean Open Access Consumer connected to
transmission system or distribution system but not having any contract demand with the
distribution licensee within the state;
xiv. ‘Gaming’ in relation to DSM Regulations, shall mean an intentional mis-declaration of
declared capacity by any Seller or intentional mis-declaration of drawal schedule by any
Buyer in order to make an undue commercial gain through Charge for Deviations;
xv. ‘Grid Code’ means the Grid Code specified by the Commission under clause (h) of
subsection (1) of Section 86 of the Act;
xvi. ‘Implemented Schedule for Seller’ means the final schedule of Seller at the end of the
day (24:00 Hrs) after incorporating all Intra-day revisions, which shall be considered for
Deviation Settlement calculation;
xvii. ‘Implemented Schedule for Buyer’ means the final schedule of buyer at the end of the
day (24:00 Hrs) after incorporating all Intra-day revisions, wich shall be considered for
Deviation Settlement calculation;
xviii. ‘Indian Electricity Grid Code’ (or ‘IEGC’) means the Grid Code specified by the Central
Electricity Regulatory Commission under Section 79(1)(h) of the Act;
xix. ‘Interface Meters’ means interface meters as defined by the Central Electricity Authority
under the Central Electricity Authority (Installation and Operation of Meters) Regulations,
2006, as amended from time to time;
xx. ‘Load Despatch Centre’ means National Load Despatch Centre, Regional Load Despatch
Centre or State Load Despatch Centre, as the case may be, responsible for coordinating,
scheduling of the Buyers and the Sellers in accordance with the provisions of Grid Code;
xxi. ‘MoD Guidelines’ means the Guidelines for operation of Merit Order Despatch and
amendments thereof, as may be approved by the Commission separately, if required, in
accordance with State Grid Code;
xxii. ‘Northern Regional Load Despatch Centre (NRLDC)’ means a centre established
established under sub section (1) of section 31 of the Act Northern Region for
coordinating scheduling of regional entities in accordance with the provisions of IEGC.
xxiii. ‘Northern Regional Power Committee (NRPC)’ means a committee established by
resolution by the Central Government for Northern Region for facilitating the integrated
operation of the power systems in northern region.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
xxiv. 'Open Access Regulations' means the Punjab State Electricity Regulatory Commission
(Terms and conditions for Intra-State Open Access) Regulations, 2011, as amended from
time to time;
xxv. ‘Partial Open Access Consumer’ shall mean Open Access Consumer connected to the
transmission system or distribution system and having his contract demand with the
distribution licensee within the state;
xxvi. ‘PSPCL’ means Punjab State Power Corporation Limited, a successor company of the
erstwhile Punjab State Electricity Board (PSEB), notified as the Distribution Licensee
(discom) by Government of Punjab and entrusted with the work of Generation and
Distribution business of erstwhile PSEB.
xxvii. ‘PSTCL’ means Punjab State Transmission Corporation Limited, a successor company of
erstwhile Punjab State Electricity Board (PSEB), notified as State Transmission Utility
(STU) by Government of Punjab and entrusted with the work of transmission business of
erstwhile PSEB and responsibility to operate the SLDC.
xxviii. ‘Scheduled Generation’ at any time or for a time block or any period means schedule of
generation in MW or MWh ex-bus given by the concerned Load Despatch Centre;
xxix. ‘Scheduled Drawal’ at any time or for a time block or any period time block means
schedule of despatch in MW or MWh ex-bus given by the concerned Load Despatch
Centre;
xxx. ‘Seller’ means a person, including a generating station or unit of generating station
including Captive Power Plant, supplying electricity to the grid through a transaction
scheduled in accordance with the regulations applicable for short-term open access,
medium-term open access and long-term open access;
xxxi. ‘State Deviation Pool Account’ means the State Account for receipts and payments on
account of deviations by Buyers and Sellers;
xxxii. ‘State Entity’ means such person who is in the SLDC control area and whose metering
and energy accounting is done at the state level;
xxxiii. ‘State Load Despatch Centre’ or ‘SLDC’ means the Load Despatch Centre of the State
established under sub section (1) of section 31 of the Act, responsible for co-ordinating
scheduling of the state entities in accordance with the provisions of State Grid Code;
xxxiv. ‘Time-Block’ means a time block of 15 minutes or any such shorter duration as may be
notified by the Commission, for which specified electrical parameters and quantities are
recorded by a special energy meter, with the first time block starting at 00.00 hours;
xxxv. ‘Time Block DSM Charge’ means the charge for deviation for the specific time block in a
day payable or receivable as the case may be, excluding the additional charges as
specified under Regulation 10 of DSM Regulations.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
3. Applicability:-
This Procedure shall apply to the Seller(s) and Buyer(s) involved in the transactions facilitated
through short- term open access or medium-term open access or long-term access using
intra-state transmission system (InSTS) and/or distribution system of electricity (and when
such Intra-State system is used in conjunction with Inter-State transmission system),subject to
the following conditions:
i. Deviation Settlement Mechanism under this Procedure shall be applicable for all Seller(s)
having installed capacity above 5 MW (or such other threshold capacity as may be
notified by the Commission at later stage), including renewable energy generators
(excluding wind and solar generating stations), open access generators, captive
generators (excluding insitu captive generators) connected to intra-State transmission
system;
Provided further that, forecasting, scheduling and deviation settlement related matters
regarding wind and solar generation shall be governed as per the provisions of Punjab
State Electricity Regulatory Commission (Forecasting, Scheduling and Deviation
Settlement for Solar and Wind Generation) Regulations, 2019” and its amendments
thereof read along with Detailed Forecasting, Scheduling and DSM Procedure of Solar &
Wind generators approved by the Commission;
Provided also that, in case of a Captive Power Plant (CPP) connected to InSTS or the
distribution system wheeling power under Open Access Regulations and availing Standby
power under PSERC (Harnessing of Captive Power Generation) Regulations, 2009, as
amended from time to time, the overdrawal during the period of Standby power shall be
as per PSERC (Harnessing of Captive Power Generation) Regulations, 2009, as amended
from time to time.
ii. Deviation Settlement Mechanism under this Procedure shall be applicable for all Buyer(s)
including distribution licensee(s), deemed distribution licensee(s) located in the state and
full open access consumers connected to intra-State transmission system(InSTS);
Provided that, Deviation Settlement of partial open access consumers connected to intra-
State transmission system and all open access consumers connected to the distribution
network shall be in accordance with the provisions of the Open Access Regulations;
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Provided further that, in case of full open access consumers connected to InSTS and
availing standby power under Open Access Regulations, the overdrawal during the period
of standby power shall be dealt as per the Open Access regulations.
iii. The commercial arrangements specified under Clause (9) and (10) of DSM Regulations,
and the related provisions regarding Deviation Charges, Additional Charge for Deviation
and penal actions, if any, shall come into force from a date to be notified separately by
the Commission.
Provided that till notification of commercial arrangements under DSM regulations, the
CERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2014, as
amended from time to time, read with Commission’s order dated 28.11.2014 in petition
no. 27 of 2014 and PSERC (Terms and Conditions for Intra-State Open Access)
Regulations, 2011, as amended from time to time, as applicable, shall remain in force for
levy of deviation/imbalance charges including methodology of deviation and all related
commercial arrangements;
Provided further that, forecasting, scheduling and deviation settlement related matters
regarding wind and solar generation shall be governed as per the provisions of Punjab
State Electricity Regulatory Commission (Forecasting, Scheduling and Deviation
Settlement for Solar and Wind Generation) Regulations, 2019” and its amendments
thereof read along with Detailed Forecasting, Scheduling and DSM Procedure of Solar &
Wind generators approved by the Commission;
This procedure shall be applicable only after availability of requisite AMR system and
Scheduling, Energy Accounting & DSM Software with SLDC which is proposed under
SAMAST scheme.
4. Role & Responsibilities: -
4.1 State Entity
i The State Entity shall nominate/ authorize person(s) to coordinate and communicate
with SLDC for implementation of DSM framework after registration with SLDC and
receipts and payments of Deviation Charges raised by SLDC and shall notify the name,
designation and contact details (phone, fax, mobile and e-mail) of the such nominated/
authorized person(s) to SLDC from time to time.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
ii The State Entity shall inform the SLDC of all contracts that it has entered into for
exchange of energy.
iii The State Entity shall operate their generating equipment and loads in a manner that is
consistent with the provisions of the Grid Code.
iv To gain physical access and connection to the intra-State transmission system (InSTS) or
the distribution system, the State Entity shall enter into a Connection Agreement/ Open
Access Agreement with PSTCL or PSPCL. This agreement shall specify physical and
operational requirements for reliable operation of InSTS or the distribution system as the
case may be, in accordance with the Open Access Regulations.
v The State Entity shall establish a round the clock Control Center and shall be responsible
for control of its Generation/ Demand. The Control Centre shall have facilities of voice
communication with SLDC with voice recording facilities, Fax machine and internet
connection available for all the 24 hours.
vi For the purpose of Grid security and safety, the State Entity shall comply with the
instructions of the System Operator in normal condition as well as during emergencies.
vii The State Entity shall be responsible for forecasting and submission of its injection/drawl
schedule to SLDC in line with the regulations and the Grid Code notified by Commission.
viii The State Entity shall provide telemetry of real time injection/ drawal data to SLDC
control room for monitoring purposes.
ix The State Entity shall be responsible for metering, data collection/ transmission and
communication and historical data maintenance in co-ordination with SLDC/ NRLDC/
NRPC etc. and for co-ordination with SLDC, NRLDC, NRPC and other concerned agencies
in line with the provisions of PSERC/ CERC Regulations.
x The State Entity shall use Automatic meter reading (AMR) technologies for transfer,
analysis and processing of interface meter data to SLDC in line with Metering / AMR
protocol and Metering/ AMR standards to be finalized by SLDC/ PSTCL/ PSPCL in
accordance with provisions of Metering Code and CEA Metering Regulations, as amended
from time to time. However, until AMR system is established, the monthly energy meter
reading downloaded in presence of field office of PSTCL shall be sent to SLDC.
xi The State Entity shall abide by the Punjab state Electricity Regulatory Commission
(Deviation Settlement Mechanism and Related Matters) Regulations, 2020, as amended
from time to time.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
xii The State Entity shall coordinate and cooperate for periodical testing and calibration of
Interface Meters as per Grid Code, CEA metering Regulations and procedures of SLDC/
PSTCL/ PSPCL.
xiii The State Entity shall be responsible to coordinate and cooperate with SLDC for data
requirements to calculate Deviation and Energy Accounting.
xiv The State Entity shall coordinate and cooperate with SLDC for timely payment of
Deviation Charges raised by SLDC into the State Deviation pool Account.
4.2 State Load Despatch Centre (SLDC)
i. After Implementation of SAMAST Scheme, Web-based Software facility shall be provided by
SLDC for:
Online registration/de-registration of State Entity
Scheduling of State Entities as per the regulations and Grid Code issued by Commission
Intimation of Grid Constraints and curtailments, if any on real time basis.
Energy Accounting of State Entities as per DSM regulations
Mechanism for monitoring deviations in Scheduled & Actual generation along with
commercial impact for SLDC and State Entities along with acquisition of Meter
Reading of all the Interface points in the State for calculation of Deviations and
Charges thereof.
ii. SLDC shall be responsible for scheduling, day to day communication, coordination with State
Entities.
iii. SLDC shall take all decisions regarding the despatch of generating stations after evaluating
all the possible network parameters, constraints, congestions in the transmission network.
In the event of any network aberration, the instructions issued by the SLDC relating to
despatch and drawal shall be binding on all State entities.
iv. SLDC shall publish on its website all such information as required for all other State entities
to be aware of the energy exchanges taking place within the pool as well as exigency
conditions, if any with regard to the despatch of power.
v. SLDC shall maintain records and accounts of the time block-wise Schedules, the actual
generation/ drawal and the deviations, for the State Entities.
vi. SLDC shall prepare and issue Energy Account Statement (for declared Available Capacity,
Scheduled Energy & Actual Injection) and DSM accounts in respect of each State Entity and
maintain record of the same.
vii. All commercial transactions w.r.t. receipt/payment of deviation (DSM) charges from/ to
State Entities shall be done through State Deviation Pool Account maintained by SLDC.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
viii. The AMR system at SLDC end is expected to be made functional within one year after issue
of funding by PSDF under SAMAST scheme. However, until Automated Meter Reading
(AMR)/ remote data downloading facilities/ infrastructure is established at SLDC, Concerned
field offices of distribution licensee/ STU (PSPCL/ PSTCL) shall be responsible for timely
downloading and supply of Interface meter data (duly signed hard copy & soft copy) to the
SLDC for preparation of Deviation accounts.
4.3 State Transmission Utility (STU) and distribution licensee
i. The State Transmission Utility (PSTCL) shall make necessary arrangements for installation of
suitable Meters (ABT compliant Special Energy Meters) including Automated Meter Reading
(AMR) facilities, capable of recording energy flows at 15-minute intervals or any other time
interval as specified by the Commission, at the points of injection and drawal of the State
entities connected to the transmission system of STU (PSTCL). In case of State entities
connected to the distribution system of PSPCL, the aforesaid arrangements for metering and
AMR infrastructure shall be made by the distribution licensee i.e. PSPCL. Cost of metering
and AMR infrastructure shall be borne by the respective State Entity.
ii. Installation, Operation and maintenance of interface meters shall be in accordance with the
Metering Code (in Grid Code) and Central Electricity Authority (Installation and Operation of
Meters) Regulations, 2006, as amended from time to time. The metering equipment,
metering protocol, AMR system and associated communication facilities shall also comply
with CEA “Functional Requirement of Advanced Metering Infrastructure (AMI)” read along
with the provisions in SAMAST report endorsed by Forum of Regulators (FoR).
iii. The time synchronization of the metering system shall be through Global Positioning System
with counter check from the State Energy Accounting Centre at SLDC.
iv. The metering at all the existing interface points along with associated AMR system shall be
provided & installed by STU (PSTCL) under SAMAST scheme based on PSDF funding.
v. For the purpose of Meter Data Processing, PSTCL in consultation with SLDC, develop, install
and maintain the Meter Data Acquisition System (MDAS) software at State Energy
Accounting Centre at SLDC under SAMAST scheme.
vi. PSTCL/ PSPCL shall ensure that all the interface points and interface meters are reporting in
the MDAS software and ensure availability of each interface meter data in the MDAS
software at the State Energy Accounting Centre of SLDC.
vii. Any change (addition/ replacement/ location change) / testing of the interface metering
infrastructure (e.g. Interface meters/ Metering CT/PT or associated AMR/ communication
system) shall be carried out by PSTCL/ PSPCL with prior intimation to SLDC.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
viii. PSTCL/ PSPCL shall ensure periodic testing and calibration of metering equipment and shall
upkeep accuracy and reliability of metering data in MDAS software.
ix. PSTCL/ PSPCL shall ensure that any new generator/ transformer/ transmission line/
distribution feeder with interface point shall not be charged unless its meter data is
registered and reported to MDAS software and approval is granted by SLDC.
x. PSTCL/ PSPCL shall maintain the Common Meter Reading Interface (CMRI) facility for
manually downloading of data in the absence of or failure of Automated Meter Reading
(AMR) facility.
5. Registration and De-Registration Procedure for State Entities/ Pool members:
5.1 Registration as a State Entity:- The procedure for registering a State Entity is as under: i The prospective State Entity shall submit application (as per Annexure-II A) accompanied
with prescribed fee for registration through web-based Software (proposed under
SAMAST scheme) and copy of printed application shall be supplied to SLDC along with
required documents.
ii The non-refundable application processing/ registration fee (as per Annexure-I) (with
applicable GST) shall be payable through RTGS/ NEFT
In case of deposit/ receipt of less amount than the prescribed fee, the application shall
not be processed until full payment is received in the account. Bank Charges, if any, shall
be borne by the State Entity.
The present account details of Accounts Officer/ SLDC are State Bank of India A/c No.
65111588221 (IFSC Code: SBIN0050012).
Any change in these account details or procedures will be conveyed to the concerned
through uploading on Punjab SLDC website.
iv Each application for registration shall be accompanied with the following self-attested
documents:-
a) Undertaking/ Affidavit on Non-Judicial Stamp paper of value notified by the State
Government from time to time (attested by Notary) in regard to compliance for PSERC
Regulations and approved procedures as per Annexure-II B.
b) Copy of Board Resolutions for Authorized Signatory/ Power of Attorney/ Authorization
Letter, duly certified/ attested by Company Secretary/ C.A. in respect of the signing
authority of State Entity.
c) Copy of Single Line/ Schematic Diagram with details of Connectivity and Metering.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
d) Copy of PAN Card and GST certificate.
e) Copy of existing LTA/ MTOA agreement/ STOA approval, if any.
f) Copy of existing PPA, if any.
g) Copy of Feasibility and CEI Clearance and COD certificate, with date & time of COD for
each generating unit (For Generators only)
h) Copy of Capability Curve details and OEM Certificate (For Generators only)
i) Copy of PEDA clearance/ implementation agreement (For NRSE/ Renewable generator only)
j) Load Curve Data for last 3 years (For Distribution licensee/ Deemed distribution
licensee/ Full Open Access Customer)
k) Any other document based on the SLDC requirement time to time.
Note: All the photocopies supplied along with the application shall be self-attested by
authorized signatory.
v. All applications for registration complete in all respects, shall be submitted in the following
office: -
Chief Engineer/SLDC, PSTCL
SLDC Building, 220KV Sub Station, Ablowal,
Patiala-147001. (E-mail:“[email protected]”)
vi. The time period for registration of State Entity shall be (15) working days from the date
of receipt of all the documents & information complete in all respect by SLDC.
vii. Within one week from the date of registration or within a fortnight from the date of
notification regarding operationalization of commercial arrangements by the
Commission, whichever is later, Letter of Credit (LC)/ RBI Letter of Mandate (LM) towards
payment security shall be submitted by the State Entity in line with Reg. 16(D) of DSM
Regulations. The same shall be initially valid for 2 years and revalidated/ recouped from
time to time as per the provisions of said regulations.
If the State Entity fails to pay deviation charges within the specified time as per Reg.
16 (E) of DSM Regulations, the LC/ LM can be encashed by SLDC.
In case of exhausted LC/ LM, State Entity shall reinstate LC/ LM within seven (7)
days from receipt of such information from SLDC. Failure to reinstate LC/ LM within
prescribed time limit, the scheduling can be withheld by SLDC.
viii. Once the application supplied by State Entity along with the requisite documents is found
in order and LC/ LM is received, the same may be accepted by the SLDC, and necessary
Registration ID (login ID and password for web-based application) shall be provided by
SLDC for accessing the further activities such as uploading of scheduling/revisions etc.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
ix. Incomplete application shall be liable for rejection. The reason for rejection shall be
communicated to the State Entity.
6. Declaration of Available/ Declared Capacity (DC) and Scheduling
All the State Entities (Sellers/ Buyers) shall be guided by the Scheduling and Despatch
procedure Specified under the Punjab State Grid Code and amendments thereof read along
with principles stipulated by the Commission in regulation 6 (B) of DSM Regulations.
7. Data & Communication protocol: -
In view of the large volume of information needed to be exchanged in a time bound manner,
the transfer of information e.g. technical/ static data, forecast, Available Capacity, Schedule
etc. between SLDC and State Entity shall be through internet only. However, in case of
contingencies like internet failure etc., the transfer of information may be communicated
through alternate mode i.e., fax/telephone on request of SLDC/ State Entity.
Real Time Injection/ Drawl Data from the State Entity to SLDC shall be provided by State
Entity (including necessary interfacing arrangements for data integration at SLDC end) in line
with the provisions of State Grid Code. The Real Time data shall be transmitted upto SLDC
through IEC: 101/104 protocol by providing a redundant (main & backup) communication
link/ connectivity using any mode of communication e.g. Optical Fibre/PLCC/MPLS/RF/GPRS
or any other latest technology available, which shall be provided and maintained by the
State Entity. Further, main and backup communication links shall preferably be either
through different communication modes or from different service providers (if same
communication mode is used). The communication network i.e. PLCC/ Optical Fibre from
PSTCL sub-stations to SLDC in Punjab is to be provided by STU (PSTCL) for telemetry of real
time data upto SLDC.
State Entity shall follow the provisions of CERC (Communication Systems for Inter-State
Transmission of Electricity) Regulations, 2017, as amended from time to time and technical
standards, protocols for communication system etc. notified by CEA under aforesaid CERC
Regulations for Communication Infrastructure to be used for data communication and tele-
protection of power system and shall ensure the correctness of the real-time data.
8. Metering and data collection
i. Concerned State Entities shall be responsible for providing required metering equipment
along with specified communication facilities for the purpose of proper Energy Accounting in
line with State Grid Code requirement and alongwith Automated Meter Reading (AMR)
system for communicating and integrating meter data at SLDC. Internal clock of the
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
interface meter shall be time synchronized with GPS. The metering equipment, metering
protocol, AMR system and associated communication facilities shall comply with State Grid
Code, CEA metering regulations, as amended from time to time, CEA “Functional
Requirement of Advanced Metering Infrastructure (AMI)” read along with the provisions in
SAMAST report endorsed by Forum of Regulators (FoR).
ii. The Interface meters (ABT compliant Main & Check Meters) shall be provided by the State
Entities and shall be installed in coordination with field offices of concerned licensee (PSPCL/
PSTCL). The ABT compliant Standby meters at grid sub-station end shall be provided by the
concerned licensee (owner of sub-station i.e. PSPCL/PSTCL, as the case may be). In case of existing State Entities, the metering system alongwith associated AMR system
shall be provided & installed by STU (PSTCL) under SAMAST scheme based on PSDF funding.
However new State Entities shall be responsible for providing metering system alongwith
associated AMR & communication system (compliant to the provisions of SAMAST report)
for integrating meter data at SLDC. Concerned licensee (PSPCL/ PSTCL) shall be responsible for installation, testing,
commissioning, maintenance, sealing, rectification & replacement of metering equipment
and data downloading and supply of downloaded data to SLDC timely in line with the
Regulations notified by the Commission. However, the cost of such activities shall be borne
by the concerned State Entity. Further, all the recurring charges of metering and
communication system (included rentals etc.) in case of both existing as well as new State
Entities shall be borne by the concerned State Entity.
xi. The AMR system at SLDC end is expected to be made functional by end of year 2021/start of
year 2022. However, until Automated Meter Reading (AMR)/ remote data downloading
facilities/ infrastructure is established at SLDC, Concerned field offices of distribution
licensee (Sr.Xen/DS & Sr.Xen/MMTS of PSPCL) shall be responsible for timely downloading
and supply of Interface meter data (duly signed hard copy & soft copy) to the SLDC for
preparation of Deviation accounts. In case of State Entities directly connected to PSTCL and
selling/ purchasing power to/ from 3rd party under open access within the State or outside
the State, concerned filed offices of STU (Sr.Xen/ P&M of PSTCL) shall be responsible for
downloading and supply of Interface meter data (duly signed hard copy & soft copy) to SLDC
in coordination with the concerned field offices of PSPCL (Sr.Xen/ DS/ MMTS).
iii. Concerned field offices of licensee (PSPCL/ PSTCL) shall be responsible for time to time
monitoring, checking/ testing of metering equipment and GPS time synchronization, thus
ensuring health of the metering equipment & correctness of ABT data. The detection and
Correction of Real Time Clock (RTC) time drift of interface meters shall be done by the
concerned field offices of the licensee as per the approved procedures.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
In case of State Entities directly connected to the Intra-state transmission system and
purchasing/ selling power to 3rd party under open access or wheeling power for captive use,
the concerned Sr.Xen/ P&M of PSTCL shall be responsible for checking/ testing of metering
equipment, detection and Correction of Real Time Clock (RTC) time drift in coordination with
the concerned field officers of PSPCL (Sr.Xen/ DS/ MMTS) as per approved Procedures.
Provisions of PSERC (Terms & Conditions for Intra-State Open Access Regulations), 2011, as
amended from time to time and Intra State Open Access Procedures approved by PSERC
shall also be applicable in such cases.
iv. In case of any problem or reported defect/fault in metering equipment, the matter shall be
referred to the concerned field office of PSPCL/ PSTCL, as the case may be. If required,
concerned field office of PSPCL/ PSTCL or State Entities may refer/take-up the matter in the
Protection Co-ordination Committee (PCC) and/ or Commercial & Metering Committee
(CMC), depending upon the nature of issue. In case of any defect/ change in metering
equipment, SLDC shall be intimated immediately.
9. Data Processing: i. Every Thursday, all SEM data of the previous week starting Monday 00:00 Hrs to Sunday
24:00 Hrs would reach to SLDC through AMR facility in MDAS software for data processing.
In case of any problem, SLDC can request PSTCL/ PSPCL to provide the SEM data. State
Entities shall also coordinate with SLDC for timely supply of weekly SEM data.
ii. The computation of the net injection of each seller and actual drawl of each buyer shall be
carried out in line with the provisions of PSERC DSM Regulations based on the meter
readings received at SLDC.
iii. The data shall be processed in the Meter Data Acquisition System (MDAS) software at State
Energy Accounting Centre at SLDC.
iv. The preparation of Deviation accounts shall be on the basis of meter data made available to
SLDC and Implemented Schedules.
v. In case of non-availability of Interface Meters data and/or defect in interface metering
equipment (ABT Main & Check Meters/ CT/PT at Interface Point), the data recorded by
Standby meters shall be considered for accounting purposes during the period of defect. In
case of non-availability of both interface Meters’ data as well as standby Meter data and/or
defect in both the interface metering equipment and Standby meter, accounting shall be
done based on historical trends and/or as per the decision of Commercial & Metering
Committee (CMC) after hearing all the affected parties.
14
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
10. Energy Accounting: i. The SLDC shall prepare a statement of the State Energy Account for each time block for the
Buyers and Sellers on monthly basis.
ii. Data required for the billing of partial open access consumers connected to InSTS and all
open access consumers connected to distribution system shall be passed on to the billing
centre of the distribution licensee by the SLDC. The billing centre of the distribution licensee
shall be responsible for energy accounting, raising and settlement of bills with partial open
access consumers connected to InSTS and all open access consumers connected to
distribution system.
iii. Payments of capacity and energy charges by the Buyers to the Sellers shall be as per the
provisions in the respective Power Purchase Agreements or Agreement(s) with respect to
transactions through power exchange and through Short Term Open Access, as the case
may be.
iv. The Energy Account Statement for Deviation Settlement of Partial Open Access Consumers
connected to the InSTS and all open access consumers connected to the distribution
network shall be in accordance with the provisions of PSERC (Terms and Conditions for Intra
State Open Access) Regulations, 2011 and its amendments thereof .
v. The day-wise energy scheduled as per implemented schedules shall form a part of State
Energy Account. Monthly State Energy Account (SEA) (containing details of DC/ Availability
of generators and scheduled energy) will be issued by SLDC in line with the provisions of
State Grid Code, which will be uploaded on Punjab SLDC website for any comments/
objections/corrections. SLDC will be authorized to revise the State Energy Account.
vi. State Energy accounts (SEAs) for Punjab prepared by SLDC shall be uploaded on SLDC
website, for raising bills by all concerned. Such energy accounts shall be subject to
inspection/ verification/checking and raising any objection within 15 days of date of issue. If
no objection is raised, energy accounts shall be considered finalized. In case, any objection is
raised, the energy accounts shall be revised after checking, if required. However, the
disputed matters shall be deliberated in Commercial and Metering Committee and finalized
as per their decision. Supplementary bills/credit note shall also be raised accordingly.
vii. State Energy Account would contain:
a) Details of declared capacity (DC)/ Available Capacity (AvC)
b) Details of Plant availability Factor (PAF)
c) Details of cumulative Availability Factor (CAF)
d) Details of Mis-declaration of declared capacity
15
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
e) Energy Scheduled/Booked to discom(s) from State Generating Stations (Mus)
f) Scheduled energy of Intra-State and Inter-State Open Access (bilateral &
Collective) transactions
g) RE generation Buyer & Seller wise energy (including OA transactions)
h) Monthly Report of Exchange of power capacity, if any, amongst the State Entities
on account of actions initiated by SLDC in the interest of grid operation or in
compliance to NRLDC instructions (Ref. Reg 6 (B) (v) of DSM Regulations)
viii. The format of State Energy Account is enclosed at Annexure-III of this procedure.
11. Intra-State Transmission Losses
i. For scheduling purposes, intra-state transmission system losses as approved by the
Commission shall be allocated amongst the State entities in proportion to the scheduled
drawal by each State Entity;
ii. SLDC shall calculate Energy balance considering drawal of buyers and injection of sellers
and Inter-State Energy Exchange provided by NRPC/ NRLDC or data available from
interface meters installed by STU. Based on the Energy balance, the Intra-State
Transmission System Losses shall be worked out for each time-block.
iii. SLDC shall maintain an account of the actual intra-state transmission system loss for each
time block and publish on its website a reconciliation statement of the monthly average
intra-state transmission loss and the 52-week average intra-state transmission vis-à-vis
approved loss by the Commission.
12. Deviation Accounting: 12.1 Deviation
Deviation for Seller:
‘Deviation’ in a time-block for a Seller means its total actual injection minus its total
scheduled generation and shall for computed as below:
Time block wise Deviation for Seller = Actual Generation – Scheduled Generation
Where
Actual Generation = electricity generated or supplied by Seller and metered at Interface
meter in MW or MWh.
Scheduled Generation = Implemented Schedule of electricity generation for Seller in MW
or MWh ex-bus given by SLDC;
Deviation for Seller shall be computed by SLDC for each time block and accounted on
weekly basis.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Deviation for Buyer:
‘Deviation’ in a time-zone for a Buyer means its total actual drawal minus its total
scheduled drawal and shall be computed as below:
Time block wise Deviation for Buyers=Actual Drawal - Scheduled Drawal
Where
Actual Drawal = Electricity drawn by Buyer and metered at T<>D Interface meter in MW
or MWh. (Consolidated Drawal of Buyer at all T<>D Interface)
Scheduled Drawal = Implemented Schedule of drawal in MW or MWh for Buyer given by
SLDC (at T<>D Interface);
The Deviation for Buyer shall be computed by SLDC for each time block and accounted on
weekly basis.
12.2 Price Vector Calculation
i. The Charges for Deviation for all the time-blocks shall be payable for over-drawal by the Buyer and under-injection by the Seller and receivable for under-drawal by the Buyer and over-injection by the Seller, which are State entities, and shall be worked out on the average frequency of a time-block by considering the Price Vector for Deviation Charges as specified in the Central Electricity Regulatory Commission (Deviation Settlement Mechanism and related matters) Regulations, 2014, as amended from time to time, (as reproduced at Annexure-I of DSM Regulations).
ii. For computation of deviation charges, the master SEM frequency recorded by NRLDC and
used by NRPC for regional Deviation Settlement Mechanism for that particular time-block shall be considered as Reference Frequency, which shall be rounded off to nearest two (2) decimal places.
iii. The Deviation Settlement Mechanism (DSM) rate vector will have a dynamic slope
determined by joining the identified price points at 50 Hz (daily simple average ACP), frequency of below 49.85 Hz (Rs. 8 per unit) and 50.05 Hz (zero) on a daily basis (as shown in Table No. 1 below), provided that the Cap rate for the charges for deviation for generating stations irrespective of the fuel type and whether the tariff of such generating station is determined by the Commission or not, shall not exceed 363.10 Paise/kWh.
iv. The daily simple average Area Clearing Prices (ACP) in the day-ahead market (exclusive of
any transmission charges and transmission losses) of the Power Exchange having a market share of 80% or more in energy terms on a daily basis shall be taken into consideration for linking to the DSM price vector. If no single Power Exchange is having a market share of 80% or more, the weighted average day-ahead price shall be used for linking to the DSM price.
v. The maximum ceiling limit applicable for average Daily ACP discovered in the DAM segment of Power Exchange at 50.00 Hz shall be 800 Paise/kWh.
17
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
vi. In case of non-availability of the daily simple average ACP due to no-trade on a given day, daily simple average ACP of the last available day shall be considered for determining the DSM charge.
vii. Deviation price in Paisa/ kWh shall be rounded off to nearest two (2) decimal places.
viii. The National Load Despatch Centre (NLDC) shall act as the Nodal Agency to declare the
daily DSM rates and shall display all relevant information on its website.
Table 1 : Price Vector Calculation for Deviation calculation
Average frequency of
time block (Hz)
Charges for Deviation
Below Not below (Paise / kWh)
50.05 0.0
50.05 50.04 Slope determined by joining the price at Not Below 50.05 Hz and identified price at 50.00 Hz, and as detailed in the Regulation 50.04 50.03
50.03 50.02
50.02 50.01
50.01 50.00 Daily (simple) average Area Clearing Price discovered in the Day Ahead
Market segment of power exchange
50.00 49.99 Slope determined by joining the price identified at 50.00 Hz and price at below 49.85 Hz, and as detailed in the Regulation 49.99 49.98
49.98 49.97
49.97 49.96
49.96 49.95
49.95 49.94
49.94 49.93
49.93 49.92
49.92 49.91
49.91 49.90
49.90 49.89
49.89 49.88
49.88 49.87
49.87 49.86
49.86 49.85
49.85 800.00
The daily simple average Area Clearing Price (ACP) in Paisa/ kWh shall be as discovered in Day Ahead Market Segment of Power Exchange for N3 – North Region as considered by NLDC for declaring daily DSM rates on its website.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Illustration to DSM Price Vector specified in Annexure-III of DSM Regulations is as under:-
Table 2 : Illustration of Price Vector for Deviation calculation
Average Frequency of the time block (Hz) Charges for Deviation
(Paise/kWh)
Below Not Below
50.05 0.00
50.05 50.04 1xP/5
50.04 50.03 2xP/5
50.03 50.02 3xP/5
50.02 50.01 4xP/5
50.01 50.00 P
50.00 49.99 50.00+15xP/16
49.99 49.98 100.00+14xP/16
49.98 49.97 150.00+13xP/16
49.97 49.96 200.00+12xP/16
49.96 49.95 250.00+11xP/16
49.95 49.94 300.00+10xP/16
49.94 49.93 350.00+9xP/16
49.93 49.92 400.00+8xP/16
49.92 49.91 450.00+7xP/16
49.91 49.90 500.00+6xP/16
49.90 49.89 550.00+5xP/16
49.89 49.88 600.00+4xP/16
49.88 49.87 650.00+3xP/16
49.87 49.86 700.00+2xP/16
49.86 49.85 750.00+1xP/16
49.85 800.00
Where P is the Daily average Area Clearing Price in paisa per kWh discovered in the Day
Ahead Market segment of power exchange for N3 – North Region as considered by NLDC for
declaring daily DSM rates on its website.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
For Illustration purpose considering P = 300 Paisa per kWh, the dynamic price vector shall be as
under:-
Table 3 : Illustration of Price Vector for Deviation calculation considering P = 300 Paisa/ KWh
Average Frequency of the
time block (Hz) Charges for Deviation (Paise/kWh)
Below Not Below
50.05 0 0
50.05 50.04 1xP/5 60 Step of
{(300-0)/5}
60 Paise/kWh for
each 0.01 Hz
50.04 50.03 2xP/5 120
50.03 50.02 3xP/5 180
50.02 50.01 4xP/5 240
50.01 50.00 P 300
50.00 49.99 50+15xP/16 331.25 Step of
{(800-300)/16}
31.25 Paise/kWh
for each 0.01 Hz
49.99 49.98 100+14xP/16 362.5
49.98 49.97 150+13xP/16 393.75
49.97 49.96 200+12xP/16 425
49.96 49.95 250+11xP/16 456.25
49.95 49.94 300+10xP/16 487.5
49.94 49.93 350+9xP/16 518.75
49.93 49.92 400+8xP/16 550
49.92 49.91 450+7xP/16 581.25
49.91 49.90 500+6xP/16 612.5
49.90 49.89 550+5xP/16 643.75
49.89 49.88 600+4xP/16 675
49.88 49.87 650+3xP/16 706.25
49.87 49.86 700+2xP/16 737.5
49.86 49.85 750+1xP/16 768.75
49.85 800 800
20
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
12.3 Deviation Charges for Buyer
12.3.1 Deviation charges
(A) For Over-Drawal by Buyer
The Charges for Deviation for all the time-blocks shall be payable for over-drawal by the
buyer (when the frequency is below 50.05 Hz) and shall be worked out on the average
frequency of a time-block considering the Price Vector for Deviation Charges as specified
in Para 12.2 above subject to the following conditions:-
i. The over-drawal of electricity by any Buyer during a time block shall not exceed 12% of its
scheduled drawal or Volume Limit of [X] MW (as specified in Para 12.3.2 below),
whichever is less, when grid frequency is between the range of 49.85 Hz and above and
below 50.05 Hz.
ii. Deviation Charges are payable for Over Drawal by a Buyer when the frequency is “below
50.05 Hz”.
iii. No over-drawal of electricity by Buyer shall be permissible when grid frequency is “below
49.85 Hz.”
iv. The Deviation Charges shall be Zero for frequency “50.05 Hz and above”.
(B) For Under-Drawal by Buyer:
The Charges for Deviation for all the time-blocks shall be receivable for under-drawal by
the Buyer (when the frequency is below 50.05 Hz) and shall be worked out on the
average frequency of a time-block by considering the Price Vector for Deviation Charges
as specified under Para 12.2 above, subject to the following conditions:
i. The under-drawal of electricity by any Buyer during a time block shall not exceed 12% of
its scheduled drawal or Volume Limit of [X] MW (as specified under Para 12.3.2 below),
whichever is less, when grid frequency is between the range of “49.85 Hz and above to
below 50.05 Hz.”
ii. No under-drawal of electricity by Buyer shall be permissible when grid frequency is
“50.05 Hz and above”.
iii. The Charges for Deviation of under-drawal by the Buyer in a time-block in excess of 12%
of the Schedule or Volume Limit of [X] MW (as specified under Para 12.3.2 below),
whichever is less, shall be zero.
21
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Provided that if the schedule of a buyer, in a time block, is less than or equal to 40 MW,
the charges for under-drawal in excess of 5 MW shall be zero.
iv. The Deviation Charges shall be Zero for frequency “50.05 Hz and above”.
12.3.2 Volume Limit for Buyer
(A) The Volume Limit for a Buyer is as defined under:
Minimum of (12% of schedule or [X] MW)
Where [X] MW = (Peak Demand of Distribution Licensee or Buyer / ƩNCPD) x State
Volume Limit.
Where, NCPD (Non-Coincident Peak Demand) represents the sum of Peak Demand of
Distribution Licensee(s) and Buyer(s) and
Where, Peak Demand of the Distribution Licensee(s) and Buyer(s) shall be recorded
Peak Demand in the current Financial Year or Projected Peak Demand of Distribution
Licensee(s) or Buyer(s) in ensuing Financial Year, whichever is higher.
(B) Volume Limit for the Distribution Licensee or Buyer determined as per above formula
shall be rounded off to nearest integer value subject to minimum volume limit of 1 MW.
(C) State Volume Limit shall be linked to Volume Limit (L) applicable to the State as per the
CERC (Deviation Settlement Mechanism and related matters) Regulations,2014 and its
amendments thereof. Presently the State Volume Limit for the State is 150 MW and same
shall be distributed among State Entities (Buyer) as per the methodology provided below:
Table 4: Illustrative example for computation of Volume Limits for Buyers
State Deviation volume Limit (L) 150 MW
State Non-Coincident Peak Demand (NCPD) 13181 MW*
Discom/ Full Open Access customers
Peak Demand (MW)
Cap Limit (MW)
Ratio (%) Deviation Volume Limit (MW)
(a) (b) = 12% x (a) (c )=(a)/ NCPD
(d) = L x (c)%
PSPCL 13135 1576 99.65 149
Northern Railway 46 5.5 0.35 1
Total (NCPD for State) 13181 150 MW * at 15:15 Hrs on 2nd July, 2020
22
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
12.3.3 Additional Deviation Charges for Buyer
A) For Over-Drawal by Buyer:
i. The Additional Charges for Deviation in excess of Deviation Charges, shall be applicable
for over-drawal of electricity by buyer for each time block when grid frequency is “below
49.85 Hz” as a percentage of the Charges for Deviation corresponding to the average grid
frequency of the time block and the same shall be equivalent to 100% of the charges for
deviation of 800 Paise/kWh corresponding to the grid frequency of ‘below 49.85 Hz’.
ii. Additional Charges for Deviation in excess of Deviation Charges, shall be applicable for
over-drawal of electricity by buyer for each time-block in excess of the Volume Limits
specified under Para 12.3.2 above, when average grid frequency of the time-block is
“49.85 Hz and above” at the rate specified in Table 1 of Annexure-II of DSM Regulations,
reproduced below:-
Table – 5: Additional Charge for Deviation (for Buyer)
(A) When 12% of the Schedule is less than or equal to [X] MW
1 For over-drawal of electricity by any Buyer in
excess of 12% and upto 15% of the schedule in
a time block
Equivalent to 20% of Charge for Deviation
corresponding to average grid frequency of
the time-block
2 For over-drawal of electricity by any Buyer in Equivalent to 40% of Charge for Deviation excess of 15% and upto 20% of the schedule in corresponding to average grid frequency of the
a time block time-block
3 For over-drawal of electricity by any Buyer in Equivalent to 100% of Charge for Deviation excess of 20% of the schedule in a time block corresponding to average grid frequency of the
time-block
(B) When 12% of the Schedule is more than [X] MW
4 For over-drawal of electricity by any Buyer is Equivalent to 20% of Charge for Deviation above X MW and upto 4/3 (X) MW in a time corresponding to average grid frequency of the
block time-block
5 For over-drawal of electricity by any Buyer is Equivalent to 40% of Charge for Deviation above 4/3 (X) MW and upto 5/3 (X) MW in corresponding to average grid frequency of the
a time block time-block
6 For over-drawal of electricity by any Buyer is Equivalent to 100% of Charge for Deviation above 5/3 (X) MW in a time block corresponding to average grid frequency of the
time-block
23
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
iii. Additional Charges for Deviation, for crossing volume limits shall be applicable
irrespective of the condition that Deviation for State at state periphery is within Volume
Limit (L) for State for the time-block or no Additional Deviation Charges are payable for
the State at the State periphery.
iv. Additional Deviational charges for Over drawal by buyer when frequency is above 50.05
Hz would be zero.
v. The additional charges for violation by buyers when the frequency is below 49.85 Hz are
without prejudice to the right of SLDC to initiate action against the seller/buyer for all
such violations as per the provision of Section 146 of the Act.
B) For Under-drawal by Buyer:
i. Additional Charges for Deviation, shall not be applicable for under-drawal by Buyer when
frequency is “below 49.85 Hz”.
ii. Additional Charges for Deviation shall not be applicable for under-drawal by Buyers,
when frequency is between “49.85 Hz and above and below 50.05 Hz”.
iii. Additional Charges for Deviation in excess of Deviation Charges, shall be applicable for
under-drawal of electricity for each time block by Buyer, when grid frequency is “50.10 Hz
and above” at the rates equivalent to the charges of deviation corresponding to the grid
frequency of “below 50.01 Hz but not below 50.00 Hz” (i.e. Daily Simple Avg. ACP) or cap
rate for deviation of 363.10 Paise/kWh, whichever is lower.
iv. The additional charges for violation by buyers when the frequency is above 50.10 Hz are
without prejudice to the right of SLDC to initiate action against the seller/buyer for all
such violations as per the provision of Section 146 of the Act.
24
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Table 6: Tabular representation of Deviation and Additional Deviation Charges for Buyer Particulars Volume Limit Applicable Deviation/ DSM Charges and Additional Deviation/
DSM Charges for Buyer % of Schedule
(if 12% of Schedule <= [X] MW)
MW (if 12% of Schedule > [X] MW)
< 49.85 Hz >=49.85 Hz to < 50.05 Hz
>=50.05 Hz to < 50.10 Hz
>=50.10 Hz
Over-Drawal (by buyer)
<=12% <=X No Over-Drawal permitted. DSM Charges payable by buyer @ 800 Paise/ KWh + Additional DSM Charges payable by buyer @ 800 Paise/ KWh
DSM Charges payable by buyer
Zero DSM Charges/ Additional DSM charges payable by buyer
Zero DSM Charges/ Additional DSM charges payable by buyer
> 12% to <=15%
> X to <=4/3(X)
DSM Charges + Additional DSM Charges @ 20% of DSM charges payable by buyer
> 15% to <=20%
> 4/3(X) to <=5/3(X)
DSM Charges + Additional DSM Charges @ 40% of DSM charges payable by buyer
> 20% > 5/3(X) DSM Charges + Additional DSM Charges @ 100% of DSM charges payable by buyer
Under-Drawal (by Buyer)
<=12% <=X DSM Charges receivable to buyer
DSM Charges receivable to buyer
No Under-drawal permitted Zero DSM Charges receivable to buyer
No Under-drawal permitted Zero DSM Charges + Additional DSM charges @ Daily Avg. ACP or 363.10 Paise/ kWh, whichever is less, payable by buyer
> 12% to <=15%
> X to <=4/3(X)
Zero DSM Charges receivable to buyer
Zero DSM Charges receivable to buyer
> 15% to <=20%
> 4/3(X) to <=5/3(X)
> 20% > 5/3(X)
Note: 1. [X] MW = Volume Limit for Buyers as specified under Para 12.3.2 above. 2. Additional DSM Charges shall be as per Table 1 of Annexure-II of DSM regulations (reproduced at Table 5 of this procedure).
25
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
12.4 Deviation Charges for Seller
12.4.1 Deviation charges
The Charges for Deviation of generating stations, irrespective of the fuel type and
whether the tariff of such generating station is determined by the Commission or not,
shall not exceed the Cap Rate of 363.10 Paisa/kWh, or as determined by the Commission
and as and when amended by the Commission.
(A) For Over-Injection by Seller
The Charges for Deviation for all the time-blocks shall be receivable for over-injection by
the Seller (when the frequency is below 50.05 Hz) and shall be worked out on the
average frequency of a time-block by considering the Price Vector for Deviation Charges
as specified under Para 12.2 above, subject to the following conditions:
i. The over-injection of electricity by any Seller during a time block shall not exceed 12% of
its scheduled injection or Volume Limit of 20 MW, whichever is less (limit as specified in
Para 12.4.2 below), when grid frequency is between the range of “49.85 Hz and above to
below 50.05 Hz.”
Provided that in case the schedule of a Seller, in a time block, is less than or equal to 40
MW, under-injection/ over-injection in a time-block shall not exceed 5 MW, when grid
frequency is “49.85 Hz and above and below 50.05 Hz";
ii. No over-injection of electricity by Seller shall be permissible when grid frequency is
“50.05 Hz and above”.
iii. The Deviation Charges for over-injection by the Seller in a time-block in excess of 12% of
the Schedule or Volume Limit of 20 MW, whichever is less (limit as specified in Para
12.4.2 below), shall be zero, except in case of injection of infirm power, which shall be
governed by Clause (7) of the Regulation and Para 12.5 of this procedure;
Provided that if the schedule of a Seller, in a time block, is less than or equal to 40 MW,
the charges for over-injection in excess of 5 MW shall be zero.
v. The Deviation Charges receivable for over-injection by the Seller are subject to Cap Rate
of 363.10 Paisa/ KWh, or as determined by the Commission and as and when amended
by the Commission.
vi. The Deviation Charges shall be Zero for frequency “50.05 Hz and above”.
26
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
(B) For Under-Injection by Seller:
The Charges for Deviation for all the time-blocks shall be payable for under-injection by
the Seller (when the frequency is below 50.05 Hz) and shall be worked out on the
average frequency of a time-block considering the Price Vector for Deviation Charges as
specified in Para 12.2 above subject to the following conditions:-
i. The under-injection of electricity by any Seller during a time block shall not exceed 12%
of its scheduled injection or Volume Limit of 20 MW, whichever is less (limit as specified
in Para 12.4.2 below), when grid frequency is between the range of 49.85 Hz and above
to below 50.05 Hz.
ii. Deviation Charges are payable for under-injection by a Seller when the frequency is
“below 50.05 Hz.”
iii. No under-injection of electricity by Seller shall be permissible when grid frequency is
“below 49.85 Hz.”
iv. The Deviation Charges payable for under-injection by the Seller are subject to Cap Rate of 363.10 Paisa/ KWh, or as determined by the Commission and as and when amended by the Commission.
v. The Deviation Charges shall be Zero for frequency “50.05 Hz and above”.
12.4.2 Volume Limit for Seller
The under-injection or over-injection of electricity by Seller shall not exceed (i) 12% of the
scheduled injection or [20] MW (volume limit for Seller), whichever is lower when grid
frequency is “49.85 Hz and above and below 50.05 Hz”.
In case Schedule of a Seller, in a time block, is less than or equal to [40] MW, under-
injection/over-injection in a time-block shall not exceed [5] MW (volume limit for Seller),
when grid frequency is “49.85 Hz and above and below 50.05 Hz”.
12.4.3 Additional Deviation Charges for Seller
A) For Over-Injection by Seller:
i. Additional Charges for Deviation, shall not be applicable for over-injection by Seller when
frequency is “below 49.85 Hz”.
ii. Additional Charges for Deviation shall not be applicable for over-injection by Seller, when
frequency is between “49.85 Hz and above and below 50.05 Hz”.
27
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
iii. Additional Charges for Deviation in excess of Deviation Charges, shall be applicable for
over-injection of electricity for each time block by Seller, when grid frequency is “50.10
Hz and above” at the rates equivalent to the charges of deviation corresponding to the
grid frequency of “below 50.01 Hz but not below 50.00 Hz” (i.e. Daily Simple Avg. ACP) or
cap rate for deviation of 363.10 Paise/kWh, whichever is lower.
iv. The additional charges for over-injection by sellers when the frequency is above 50.10 Hz are without prejudice to the right of SLDC to initiate action against the seller/buyer for all such violations as per the provision of Section 146 of the Act.
B) For Under-Injection by Seller:
i. The Additional Charges for Deviation in excess of Deviation Charges, shall be applicable
for under-injection of electricity by seller for each time block when grid frequency is
“below 49.85 Hz” as a percentage of the Charges for Deviation corresponding to the
average grid frequency of the time block and the same shall be equivalent to 100% of the
the Cap Rate for deviations of 363.10 Paise/kWh.
ii. Additional Charges for Deviation in excess of Deviation Charges, shall be applicable for
under-injection of electricity by seller for each time-block in excess of the Volume Limits
specified under Para 12.4.2 above, when average grid frequency of the time-block is
“49.85 Hz and above” at the rate specified in Table 2 of Annexure-II of DSM Regulations,
reproduced below:-
Table – 7: Additional Charge for Deviation (for Seller) (A) When 12% of the Schedule is less than or equal to 20 MW
1 For under-injection of electricity by any
Seller in excess of 12% and upto 15% of
the schedule in a time block
Equivalent to 20% of the Cap Rate for deviation of 363.10 Paise/kWh or charge for Deviation corresponding to average grid Frequency of the time-block, whichever is less.
2 For under-injection of electricity by any Seller Equivalent to 40% of the Cap Rate for deviation of in excess of 15% and upto 20% of the
schedule 363.10 Paise/kWh or charge for Deviation
in a time block corresponding to average grid Frequency of the time-block, whichever is less.
3 For under-injection of electricity by any Seller Equivalent to 100% of the Cap Rate for deviation of in excess of 20% of the schedule in a time
block 363.10 Paise/kWh or charge for Deviation
corresponding to average grid Frequency of the time-block, whichever is less.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
(B) When 12% of the Schedule is more than 20 MW
4 For under-injection of electricity by any
Seller is above 20 MW and upto 30 MW in a
time block
Equivalent to 20% of the Cap Rate for deviation of 363.10 Paise/kWh or charge for Deviation corresponding to average grid Frequency of the time-block, whichever is less.
5 For under-injection of electricity by any Seller is
Equivalent to 40% of the Cap Rate for deviation of above 30 MW and up to 40 MW in a time
block 363.10 Paise/kWh or charge for Deviation
corresponding to average grid Frequency of the time- block, whichever is less.
6 For under-injection of electricity by any Seller is
Equivalent to 100% of the Cap Rate for deviation of above 40 MW in a time block 363.10 Paise/kWh or charge for Deviation
corresponding to average grid Frequency of the time-block, whichever is less.
Additional Charges for Deviation, for crossing volume limits shall be applicable
irrespective of the condition that Deviation for State at state periphery is within Volume
Limit (L) for State for the time-block or no Additional Deviation Charges are payable for
the State at the State periphery.
iii. Additional Deviational charges for under-injection by Seller when frequency is above
50.05 Hz would be zero.
iv. The additional charges for under-injection by sellers when the frequency is below 49.85
Hz are without prejudice to the right of SLDC to initiate action against the seller/buyer for
all such violations as per the provision of Section 146 of the Act.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Table 8: Tabular representation of Deviation and Additional Deviation Charges for Seller
Particulars Volume Limit Applicable Deviation/ DSM Charges and Additional Deviation/ DSM Charges for Seller
% of Schedule (if 12% of Schedule <= 20 MW)
MW (if 12% of Schedule > 20 MW)
< 49.85 Hz >=49.85 Hz to < 50.05 Hz
>=50.05 Hz to < 50.10 Hz
>=50.10 Hz
Over-Injection (by Seller)
<=12% <=20 DSM Charges receivable to Seller subject to Cap Rate of 363.10 Paisa/ kWh
DSM Charges receivable to Seller subject to Cap Rate of 363.10 Paisa/ kWh
No Over-injection permitted Zero DSM Charges receivable to Seller.
No Over-injection permitted Zero DSM Charges + Additional DSM charges @ Daily Avg. ACP or 363.10 Paise/ kWh, whichever is lower, payable by Seller.
> 12% to <=15%
> 20 to <=30
Zero DSM Charges receivable to Seller.
Zero DSM Charges receivable to Seller.
> 15% to <=20%
> 30 to <=40
> 20% > 40
Under-Injection (by Seller)
<=12% <=20 No Under-Injection permitted. DSM Charges payable by seller @ 363.10 Paise/ KWh + Additional DSM Charges payable by seller @ 363.10 Paise/ KWh
DSM Charges payable by Seller subject to Cap Rate of 363.10 Paisa/ kWh
Zero DSM Charges/ Additional DSM charges payable by seller.
Zero DSM Charges/ Additional DSM charges payable by seller.
> 12% to <=15%
> 20 to <=30
DSM Charges subject to Cap Rate of 363.10 Paisa/ kWh + Additional DSM Charges @ 20% of DSM charges subject to Cap Rate of 363.10 Paisa/ kWh, payable by seller
> 15% to <=20%
> 30 to <=40
DSM Charges subject to Cap Rate of 363.10 Paisa/ kWh + Additional DSM Charges @ 40% of DSM charges subject to Cap Rate of 363.10 Paisa/ kWh, payable by seller
> 20% > 40 DSM Charges subject to Cap Rate of 363.10 Paisa/ kWh + Additional DSM Charges @ 100% of DSM charges subject to Cap Rate of 363.10 Paisa/ kWh, payable by seller
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Note: 1. Volume Limit for Sellers shall be as specified under Para 12.4.2 above. 2. Additional DSM Charges shall be as per Table 1 of Annexure-II of DSM regulations (reproduced at Table 7 of this procedure).
12.5 Treatment to Infirm Power (injected by Seller) and Start Up Power (drawn by Seller) Prior to
COD:
i. The infirm power injected into the grid by a generating unit of a generating station during
testing, prior to COD of the unit shall be paid at Charges for Deviation for infirm power
injected into the grid, consequent to testing, for a period not exceeding six months or the
extended time as may be allowed by the Commission, subject to the ceiling of Cap Rates
corresponding to the main fuel used for such injection as specified below:
Table 9: Cap rates for infirm power by Seller
Fuel Cap Rate for Infirm Power
Domestic coal/ Lignite/ Hydro Rs. 1.78/kWh sent out
APM gas Rs. 2.82/kWh sent out up to the date of
revision of price of APM gas by the
Government of India and thereafter, at the
rate to be notified by the Commission
separately
Imported Coal Rs. 3.03/kWh sent out
RLNG Rs.8.00/kWh sent out
ii. Any infirm injection of power by a generating station prior to the COD of a unit during
testing and commissioning activities shall be exempted from the volume limit as specified
in Regulation 10 of DSM Regulations and Para 12.4.2 of this procedure for a period not
exceeding six months or the extended time as may be allowed by the Commission.
iii. Any drawal of power by a generating station prior to the COD of a unit for the start-up
activities shall be exempted from the volume limit as specified in Regulation 10 of DSM
Regulations and Para 12.3.2 of this procedure above when the grid frequency is “49.85 Hz
and above”.
iv. Any drawal of power by a generating station prior to the COD of a unit for the start-up
activities shall be exempted from the levy of Additional Charges for Deviation.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
12.6 Sustained Deviation Violations and Sustained Deviation Charges for failure of Sign
Change by State Entity
In the event of sustained deviation from schedule in one direction (positive or negative) by any state entity, such state entity (buyer or seller), shall correct its position in the manner as specified under Regulation 10 (K) (a) and (b) of the Regulation, as reproduced hereunder:
i. For the period upto 30.11.2020: If the sustained deviation from schedule continues in one direction (positive or negative) for 12 time blocks, the state entity (buyer or seller) shall correct its position by making the sign of its deviation from schedule changed or by remaining in the range of + 20 MW with reference to its schedule, at least once, latest by 13th time block, such range being a subset of the volume limit as specified under Regulation 10 of DSM Regulations and Para 12.3.2 and 12.4.2 of this procedure;
Provided that each violation of the sign change requirement under this clause shall attract an additional charges of 10% of the time block DSM Charges payable or receivable as the case may be.
To illustrate, A state entity having a sustained deviation from time blocks t1 to t12, shall correct its position either by changing the sign of its deviation (from positive to negative or negative to positive as the case may be) or come back in the range of +/- 20 MW with reference to its schedule, latest by the end of time block t13. In case, such sign change does not take place or it fails to come back in the range of +/- 20 MW by the end of time block t13, but such correction of position takes place from time block t14 up to time block t24, then additional charge shall be levied equivalent to one violation. The above violation shall attract an additional charge at the rate of 10% of the time block DSM charge for t13. Further, in case, sign change does not take place or it fails to come back in the range as aforesaid latest by the end of t25, but correction in position takes place from time block t26 up to time block t36, then the additional charge shall be levied for two violations and so on.
ii. For the period from 01.12.2020 onwards: If the sustained deviation from schedule continues in one direction (positive or negative) for 6 time blocks, the state entity (buyer or seller), shall correct its position, by making the sign of its deviation from schedule changed or by remaining in the range of +/- 20 MW with reference to its schedule, at least once, latest by 7th time block, such range being a subset of the volume limit as specified under Regulation 10 of DSM Regulations and Para 12.3.2 and 12.4.2 of this procedure;
Provided that violation of the requirement under clause (ii) shall attract an additional charge as specified in the table below:
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Table 10: Sustained Deviation Charges for failure of Sign Change by State Entity (w.e.f. 01.12.2020)
No. Of violations in a day Additional Charge Payable
From first to fifth violation For each violation, an additional charge @3% of the daily base DSM charge payable or receivable
From sixth to tenth violation For each violation, an additional charge @5% of the daily base
DSM charge payable or receivable
From eleventh violation onwards For each violation, an additional charge @10% of the daily base DSM charge payable or receivable
To illustrate, A state entity having a sustained deviation from time blocks t1 to t7, shall
correct its position either by changing the sign of its deviation (from positive to negative or
negative to positive, as the case may be) or come back in the range of +/- 20 MW with
reference to its schedule, latest by the end of time block t7. In case, such sign change does
not take place or it fails to come back in the aforesaid range by the end of time block t7, but
such correction of position takes place from time block t8 up to time block t12, then an
additional charge shall be levied equivalent to one violation. Further, in case, sign change
does not take place or it fails to come back in the range as aforesaid latest by the end of t13,
but correction in position takes place from time block t14 up to time block t18, then the
additional charge shall be levied for two violations and so on;
Provided further that the counting of the number of sign change violations under the above
mentioned clauses (i) and (ii) shall start afresh at 00.00 Hrs. for each day;
Provided also that the Commission may adopt a different methodology or change the allowed
time blocks for sign change as required from time to time;
Provided also that payment of additional charges for failure to adhere to sign change
requirement as specified under clause (i) and (ii) above shall not be applicable to:
a) renewable energy generators which are state entities
b) run of river projects without pondage
c) any infirm injection of power by a generating station prior to CoD of a unit during testing
and commissioning activities,
d) any drawal of power by a generating station for the start-up activities of a unit.
e) any inter-regional deviations.
f) forced outage of a generating station in case of collective transactions on Power Exchanges.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Note: In case of entities having sustained deviations (including entities with sustained deviations within the range of ±20 MW) in one direction (with no sign change) continuously for 2 days, SLDC may give notice to the concerned state entity for control of its actual injection/drawal and changing of deviation sign within next two days. In case the State Entity fails to do so and/or is found to be deliberately deviating in one direction, SLDC may stop scheduling of power to the concerned State Entity for next 3 days.
12.7 Preparation of Deviation Settlement Accounts
i. The SLDC shall, on weekly basis, prepare and publish on its website the records of the
Deviation Accounts, specifying the quantum of deviation (over-drawal/under-drawal for
buyers and over-injection/under-injection for sellers) and the corresponding amount of
Charges for Deviation payable/receivable for each Buyer and Seller for all the time-blocks
when the grid frequency is "49.85 Hz and above" and "below 49.85 Hz” separately.
ii. The Deviation accounting shall be undertaken on the basis of the data recorded by
the Interface Meters , capable of recording the energy in 15-minute time blocks or
less, as may be specified. Automated Meter Reading (AMR) system shall be used for
communicating data/ remote downloading of data at SLDC. Internal clock of the interface
meter shall be time synchronized with GPS. Besides, downloaded meter data readings
shall also be forwarded to the SLDC.
iii. The DSM account for State Entities shall be in line with the provisions of PSERC (Deviation
Settlement Mechanism and related matters) Regulations, 2020, as amended from time to
time. Similarly, Reactive Energy Accounts shall be prepared in line with provisions of
State Grid Code/ IEGC and compensation for reactive energy exchange shall be dealt with
separately in line with the regulations/Grid Code issued by the commission from time to
time.
iv. The DSM account of Partial Open Access Consumers connected to the InSTS and all open
access consumers connected to the distribution network shall be in accordance with the
provisions of PSERC (Terms and Conditions for Intra State Open Access) Regulations, 2011
and its amendments thereof.
v. SLDC shall process the weekly SEM data fetched by it/ supplied to it by every Thursday
(for the previous week starting Monday 00:00 Hrs to Sunday 24:00 Hrs) and prepare the
weekly DSM account for the State Entities, by 24:00 hours of next Tuesday, provided
that the master SEM frequency data for the accounting period (penultimate week) is
available and Regional DSM account has been issued by NRPC. The DSM account shall be
uploaded on SLDC website.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
vi. The State Entities shall communicate any discrepancies to SLDC within 15 days of
issue of accounts, which shall be corrected forthwith by SLDC , if required, within 7
days from date of receipt of such discrepancy. The discrepancies reported after 15 days
shall not be considered by SLDC and in such case, the account prepared by SLDC
shall be final. If SLDC does not accept any discrepancy raised by the State Entity, SLDC
shall reply to the entity within 7 days of raising of such discrepancy with the reasons.
vii. The process-chart pertaining to timelines for accounting by SLDC is summarized as
under:-
viii. The format of Daily and Weekly Deviation Settlement Accounts are enclosed at
Annexure-IV A to IV E of this procedure.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
13. Commercial Settlement of DSM Charges :
i The State Entity shall open Bank Account in any Bank registered and regulated by
RBI and intimate the details of the same to SLDC.
All payments on account of Charges for Deviation including Additional Charges for
Deviation levied under PSERC DSM Regulations, 2020 and Interest, if any, received for
late payment shall be credited to the funds called the “State deviation Pool Account” ,
which shall be maintained and operated by the SLDC in accordance with the provisions of
PSERC DSM Regulations, 2020. The present details of pool account of SLDC are State
Bank of India A/c No. 38757355860 (IFSC Code: SBIN0050012).
However,
a) The Commission may by Order direct any other entity to operate and maintain “State
Deviation Pool Account”.
b) Separate books of accounts shall be maintained for the Principal component and
Interest component of Charges for Deviation and Additional Charges for Deviation by
the SLDC.
c) The State entities shall comply with all statutory requirements for payment of the
applicable statutory levies, taxes and duties, if any.
d) The State entities shall facilitate SLDC in meeting with the reporting requirements of
Statutory Authorities, as necessary.
iii. SLDC shall maintain separate Bank Account (current account) for commercial transaction
under State Deviation Pool Account. This State Deviation Pool account shall be reconciled
once in six months. All the transactions with these accounts will be done through
Electronic payment such as RTGS/NEFT or other modes of online payment tractions. SLDC
shall factor in all statutory compliance requirements and propose mechanism for
recovery of associated costs, taxes, levies, if any for settlement of State Deviation Pool
Account and any associated costs.
iv. All payments received in the “State Deviation Pool Account” shall be considered in the
following sequence:
a) Any cost or expense or other charges incurred on recovery of Charges for Deviation.
b) Over dues or penal Interest, if applicable.
c) Normal interest.
d) Payment in Regional Deviation Pool Account.
e) Charges for Deviation and Additional Charges for Deviation.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
v. The surplus funds in the State Deviation Pool Account at the end of the financial year
shall be utilised for the purpose of improvements in power system operations, for
undertaking such measures and studies for improvement in reliability, security and safety
of grid operations, undertaking capacity building and training programs related to system
operations and market operations and for such other purposes as may be specified by
Commission or for other schemes as may be devised in consultation with National Load
Despatch Centre, or Regional Load Despatch Centre, with prior approval of the
Commission.
However, the shortfall in funds in the State Deviation Pool Account; if any, at the end of
the weekly settlement period shall be recovered by levy of an additional charge from the
State Entities in proportion to the Net Deviation Charges Payable by the concerned State
Entity for the applicable weekly settlement period through supplementary bills.
vi. The payment of Charges for Deviation shall have a high priority and the concerned State
Entity shall pay the indicated amount within 10 days of the issue of statement of Charges
for Deviation including Additional Charges for Deviation by the SLDC into the “State
Deviation Pool Account”. The State Entity shall make the payment irrespective of any
mistake/error in the bill. Any revision or modification in the bill on account of
mistake/error in the bill, shall be rectified and adjusted by SLDC in the subsequent bills of
the concerned State Entity.
If payment against Charges for Deviation including Additional Charges for Deviation are
delayed by more than two days, i.e. beyond 12 days from the date of issue of the
statement by the SLDC, the defaulting State Entity shall pay simple Interest @ 0.04% for
each day of delay.
vii. In case, State Entity fails to make payment against Charges for Deviation including
Additional Charges for Deviation for consecutive three (3) weeks bills, concerned State
Entity shall not be scheduled by SLDC and SLDC shall approach the Commission with
detailed report.
viii. All Payment to the State Entities entitled to receive any amount on account of Charges
for Deviation shall be made within two working days of the receipt of payments from
paying State Entities in the “State Deviation Pool Account”.
However
a) In case of delay in the payment of Charges for Deviations into the State Deviation
Pool Account and Interest beyond 12 days from the date of issue of the Statement
of Charges for Deviations, the State entities receiving payment for Deviation or
37
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Interest thereon shall be paid from the balance available in the State Deviation
Pool Account. In case the balance available is not sufficient to meet the payment
to the state Entities, the payment from the State Deviation Pool Accounts shall be
made on pro rata basis from the balance available in the State Deviation Pool
Account.
b) The liability to pay Interest for the delay in payments to the “State Deviation Pool
Account” shall remain till Interest is not paid; irrespective of the fact that State
Entities who have to receive payments, have been paid from the “State Deviation
Pool Account” in part or full.
14. Payment Security Mechanism
i All the State entities shall be required to open a Letter of Credit (LC)/ RBI Letter of
Mandate (LM) equal to 110% of its average payable weekly liability for deviations in the
previous financial year, in favour of the SLDC within a fortnight from the date of
notification regarding operationalization of commercial arrangements as per DSM
Regulations.
ii In case the average payable weekly liability for deviations in the previous financial year of
any State Entity is not available, the average payable weekly liability for deviations of a
completed month during the current year shall be considered to calculate the value of
Letter of Credit (LC)/RBI letter of mandate to be opened.
iii The LC/ RBI letter of mandate amount shall be increased to 110% of the payable weekly
liability for Deviation in any week during the year, if it exceeds the previous LC/ RBI letter
of mandate amount by more than 50%.
iv In case, State Entity fails to open the required LC/ RBI letter of mandate, concerned State
Entity shall not be scheduled by SLDC.
Illustration If the average payable weekly liability for Deviation of a State entity during (FY 2019-20)
is Rs. 2.0 Crore, the State entity shall open LC or submit RBI Letter of Mandate for Rs. 2.2.
Crore in [FY 2020-21]. If the weekly payable liability during any week in [FY 2020-21] is Rs.
3.5 Crore which is more than 50% of the previous financial year’s average payable weekly
liability of Rs. 3.0 Crore, the concerned State entity shall increase the LC/RBI letter of
Mandate amount to Rs. 3.85 Crore (1.1*3.50) by adding Rs. 1.65 Crore.
v In case of failiure to pay into the “ State Deviation Pool Account” within the specified
time of 12 days from the date of issue of the statement of Charges for Deviations, the
38
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
SLDC shall be entitled to encash the LC/RBI Letter of mandate of the concerned
constituent to the extent of the default and the concerned constituent shall recoup the
LC/RBI Letter of mandate amount within three days.
15. Compliance Monitoring
In the Event of breach or default of procedure and consequences thereof shall be as
under:
i. Following events shall constitute breach by State Entities:
a) Non-payment or delay in payment of Deviation/ Additional Deviation Charges.
b) Non-compliance of any of the terms & conditions/ rules outlined under this
procedure.
c) Non-compliance of any of the directive issued by SLDC or PSERC.
d) Obtaining registration on the basis of false information or by suppressing material
information.
e) In case Available/ Declared Capacity is intentionally and repeatedly mis-declared by
any seller.
f) In case State Entity fails to provide schedules for continuously for 10 days.
g) Non-availability of real time data continuously for three (3) days without
justified reason.
h) Non-availability of meter data for calculation of charges
i) Non-payment of DSM charges to State Deviation Pool Account by the State Entity
for consecutive three (3) weeks.
j) Non-opening of required LC/ RBI Letter of Mandate towards Payment Security
Mechanism.
k) In case the State Entity has become insolvent/ bankrupt.
l) In case of continued default for statutory compliance leading to declaration of
w illful defaulter by Competent Authority.
ii. Consequences for event of default:
a) In case of default of provisions stated this procedure without prejudice, SLDC shall
intimate the Entity for actions to be taken.
b) In case the entity fails to take corrective measures within stipulated time, the SLDC
may take decision under its Power (e.g. denying scheduling of power) and approach
the Commission.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
16. SLDC Fees & Charges and other Charges:
SLDC fee and charges including scheduling and operating charges shall be payable by the
State Entity, as specified/decided by the Punjab state Electricity Regulatory Commission. The
other Charges shall be levied as per the applicable PSERC Regulations/Orders. Details of
Registration Fee, Scheduling and Operating Charges are enclosed at Annexure-IX (which
shall be levied subject to approval of Hon’ble PSERC).
The payment/ billing of charges shall be in accordance with the relevant regulations issued
by Hon’ble PSERC from time to time.
17. Governance Structure:
i. The State Grid Code Review Committee (SGCRC) constituted under Clause 2 of PSERC
(Punjab State Grid Code) Regulations, 2013, as amended from time to time, shall be
responsible for monitoring, compliance of DSM Regulations by the State Entities,
providing necessary support & advice to the Co
ii. mmission for suitable modifications/ issuance of operating procedures, practice
directions, and amendment to the provisions of DSM Regulations, as may be necessary.
iii. The Commercial & Metering Committee (CMC) constituted under Clause 2.7 of PSERC
(Punjab State Grid Code) Regulations, 2013, as amended from time to time, shall be
responsible to resolve the issues/ disputes relating to Deviation Settlement account
under DSM regulations.
iv. The Commission may constitute a Punjab State Power Committee, which shall perform
the following functions:
a) Monitor compliance of DSM Regulations by the State Entities and submit an
annual compliance report to the Commission.
b) Guide the SLDC for modification of procedure(s) to address any implementation
difficulties.
c) Co-ordinate and facilitate intra-state energy exchange for ensuring optimal
utilisation of resources.
d) Provide necessary support and advice to the Commission for suitable
modifications/ issuance of operating procedures, practice directions, and
amendments to the provisions of DSM Regulations, as may be deemed necessary.
18. Re-dressal Mechanism:
Any dispute in scheduling, metering, billing/ energy accounting & Commercial Settlement
including unsettled disputes between the SLDC and State Entities shall be first referred to
40
Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
the Commercial & Metering Committee (CMC) formulated under State Grid Code. All users
shall abide by the decision of CMC.
The Committee shall investigate and endeavor to resolve the grievance within 30 days after
affording opportunity of hearing to all the affected parties. If the Committee is unable to
redress the grievance, it shall be referred to the Commission by the Committee. In case the
State Entity is dissatisfied with the decision of the committee, it may approach the
Commission through a petition. Pending the decision of the commission, the directions of
the CMC/ SLDC shall be complied with by the State Entity.
19. Removal of difficulties:
In case of any difficulty in implementation of this procedure, SLDC may approach the
Commission for review or revision of the procedure with requisite data. In case of
any dispute between these Procedures and PSERC DSM Regulations, 2020, the later shall
supersede these procedures and will be applicable.
20. General:
i. All costs/expenses/ charges associated with the application, including bank
charges, Affidavits etc. shall be borne by the applicant.
ii. The State Entities shall abide by the provisions of the Electricity Act, 2003, the
PSERC Regulations and Indian Electricity Grid Code and PSERC (State Grid Code)
Regulation - 2013, and applicable CERC and PSERC regulations as amended from
time to time.
iii. This procedure aims at outlining conditions and steps to streamline and facilitate the
process of Scheduling, Despatch, Accounting and Settlement of deviations of Buyers and
Sellers. However, some teething problems may still be experienced. The various
implications would be known only after practical experience is gained by way of
implementing these procedures. In order to resolve the same, this procedure shall
be reviewed or revised by the SLDC with prior approval of Commission.
iv. After approval of procedure by the Commission, SLDC shall undertake
development of necessary software for Scheduling and Despatch and Deviation Settlement
for Buyers and Sellers under SAMAST scheme and after go-live of software, there shall
be trial run period of atleast (8) weeks for ensuring implementation of DSM
framework as envisaged in the regulation. Actual commercial settlement shall
commence from the date as may be decided by the Commission.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
21. Annexures & Formats:
List of Annexures and Formats are listed below:
Sr.No. Particulars Annexure/ Format No.
1. Proposed Fee & Charges Annexure - I
2. Application Form for Registration Annexure - II A
3. Notarized Affidavit/
Undertakings on Stamp Paper
Annexure - II B
4. Formats for State Energy
Account
Annexure - III
5. Daily Deviation Calculation of
Buyers
Annexure - IV A
6. Daily Deviation Calculation of
Sellers
Annexure - IV B
7. Daily Deviation Summary of
State Entities
Annexure - IV C
8. Weekly Deviation Summary of
State Entities
Annexure - IV D
9. Abstract Deviation Charge
Summary
Annexure - IV E
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
ANNEXURE-I
Abstract of Payment to be made by the State Entity to SLDC
Sr.
No. Type of Charges
Parameter Amount (Rs.) Details of Payment
1 Registration Charges
(Non-refundable)
0.01 to 100 MW 20,000/- Alongwith
Application for
Registration of
Buyer/ Seller
(considering recent NCPD of Buyer/ Seller and Installed Capacity of Generating Station)
100.01 to 1000 MW 1,00,000/-
1000.01 to 10000 MW 2,00,000/-
> 10000.01 MW 5,00,000/-
2 Scheduling Charges As and when approved
by the Commission 2,000/- For each day
3
Letter of Credit (LC)/
RBI Letter of
Mandate (LM)
In line with the PSERC (Deviation Settlement Mechanism and related
matters) Regulations, 2020, as amended from time to time.
4 Any other charges As approved by the Commission from time to time
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-II A
Tel :
Fax : State Load Dispatch Centre
Email: Punjab State Load Dispatch Centre
State Entity Registration Form
Tick relevant box
New Registration Change of registration Cancel registration
Tick relevant boxes
Seller/ Generator
Buyer/ Beneficiary
State Owned Generating Station Distribution Licensee
IPP Deemed Distribution Licensee
CPP Full Open Access Customer
Co-gen
NRSE/ Renewable
Non-Renewable
1 Name of the Entity
2 Primary business
(brief description)
3 Business address
Mobile/ Phone Fax Email website
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
4 Postal Address
5 Registered Address
6 GST No. (copy enclosed)
7 PAN No. (copy enclosed)
8 Contact person
(Scheduling)
Name & designation
Mobile/ Phone Fax Email
9 Contact person (DSM)
Name & designation
Mobile/ Phone Fax Email
10 NCPD Quantum (MW)
(for Buyers)
11 License Details (for licensee)
(copy enclosed)
License Validity
License No.
License Date Issuing Authority
12 Connectivity Details
Details at point of injection/
drawl:
(i) Name of utility (PSPCL/
PSTCL)
(ii) Voltage Level (kV)
(iii) Installed Capacity/ Sanctioned CD (MW/ MVA)
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
(iii) Point of injection/ drawl
(Name of PSTCL/ PSPCL Sub
Station)
iv) Single line diagram &
metering details at
injection/ drawl point
13. Details of Generator
Name of
Generator
Location of
Generator
(Village, Tal,
District)
Total unit-wise
Installed Capacity
(MW)
COD date &
Time
Detail of
beneficiary/
drawl point
Type of
Generating
Units
Type of Fuel
used
FGMO Service
(Yes/ No)
RGMO Service
(Yes/ No)
FGD Compliance
(Yes/ No)
14. Metering Details
Interface Point CT Ratio PT Ratio MF
Main Meter
Check Meter
Standby Meter
15. Existing Open Access Details (Agreement/ Approval copy enclosed)
LTA/ MTOA/ STOA
Contracted Entity Capacity (MW) Validity
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Authorized Signature
And Official Seal
(For State Entity)
Note: Any change in aforementioned data/ information shall be conveyed to SLDC immediately.
16. Existing PPA Details other than above (copy enclosed)
Contracted Entity Capacity (MW) Validity
17. Details of
Registration Fee
(RTGS/ NEFT
No.)
18. Details of LC/
LM
(No. & date)
19. Bank account
Details of State
Entity for
handling DSM
mechanism
A.C No.
IFSC Code
Name of the Bank
Address
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-II B
UNDERTAKING TO BE GIVEN BY PROSPECTIVE STATE ENTITY AT THE TIME OF REGISTRATION
Name: M/s___________________________ (Name of State Entity), ______(Postal
address)__________________________________________________________
(To be provided by the State Entity on a stamp paper attested by Notary Public)
1. I/We, as a State Entity will be regulated by PSERC (Deviation Settlement Mechanism
and related matters) Regulations, 2020, as amended from time to time.
2. I/We agree that if there is any deviation from the schedule, then for such energy,
Deviation charges will be applicable as per DSM regulations as amended from time to
time.
3. I/ We shall be responsible for commercial settlements with the SLDC.
4. I/We understand that the SLDC will compute the comprehensive Deviation charges and
raise bill for the deviation on weekly/monthly basis, as may be applicable.
5. DSM Account shall be prepared as per PSERC (Deviation Settlement Mechanism and
related matters) Regulations, 2020, as amended from time to time.
6. I/We agree to submit Letter of Credit (LC)/ RBI Letter of Mandate (LM) for the amount
intimated by SLDC in line with the provisions of PSERC (Deviation Settlement
Mechanism and related matters) Regulations, 2020, as amended from time to time and
approved procedure.
7. I/We agree, if payments against the Charges for Deviation Charges are delayed by more
than two days, i.e. beyond twelve (12) working days from the date of issue of final DSM
account by SLDC, the defaulting State Entity shall have to pay simple interest@ 0.04%
per day in addition and in case the payment is not made even after a lapse of 60 days
from issuance of final DSM account, process to invoke LC/ LM shall be initiated.
8. I/We will be responsible to ensure healthiness of metering equipment during the period
of schedule/ injection of power and will inform SLDC about defect/ change in metering
equipment within 24 hrs of such defect coming to notice/ change of metering
equipment. In absence of timely receipt of such information from us, I/We will be
responsible for any loss to SLDC/ PSTCL on this account.
9. I/We shall establish a round the clock Control Center and shall be responsible for control
of its Generation/ Demand. The Control Centre shall have facilities of voice
communication with SLDC with voice recording facilities, Fax machine and internet
connection available for all the 24 hours. I we shall
10. I/We agree to provide and meet with all metering, protection and communication
requirements, as specified by the Commission/PSPCL/PSTCL from time to time.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
11. I/We agree to accept the decision of Commercial & Metering Committee/ appropriate
commission (CERC/PSERC)
12. I/We agree to bear any loss to SLDC/ PSTCL incurred on account of misrepresentation/
concealment of facts by me/us.
13. I/We will comply any additional conditions imposed by PSTCL/SLDC/PSPCL.
I/We undertake all operational and commercial responsibilities on behalf of the
Constituents as per the prevalent PSERC Regulations and are agreeing for the above
terms and conditions for registering as State Entity with SLDC, Punjab.
Details of Payment Security is enclosed
(Name and Postal address of State Entity)
__________________________________________
________________________________________________________________________
__________________________
Declaration: All that is stated in the above is true and correct.
Note: Copy of Board Resolution of Authorized Signatory/ Power of attorney/ Authorization Letter in
respect of signing authority to be enclosed.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-III
State Energy Account for the month ________
1. Details of Declared Capacity (DC)/ Available Capacity (AvC)
Sr. No. Name of Generator DC/ AvC (MUs)
1. Gen-1
2. Gen-2
-
n. Gen-n
Total in MUs
2. Details of Plant Availability Factor (PAFM)
Sr. No. Name of Generator PAF (%)
1. Gen-1
2. Gen-2
-
n. Gen-n
3. Details of Cumulative Availability Factor
Sr. No. Name of Generator CAF (%)
1. Gen-1
2. Gen-2
-
n. Gen-n
4. Details of Mis-declaration of Declared Capacity
Sr. No. Name of
Generator
Misdeclaration
Date
Incident No. No. of days for which
Fixed Charges
deductible
5. Energy Scheduled/ Booked to discom(s) from State Generating Stations (MUs)
Sr. No. Discom Gen-1 Gen-2 - Gen-n Total
1. Discom-1
2. Discom-2
-
n. Discom-n
Total
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
6. Details of Scheduled Exchanges under Intra-State Open Access bilateral transactions
Sr.
No.
From Utility To Utility Ex-Seller
(MUs)
Ex-Purchaser
(MUs)
Applicant Approval No.
7. Details of Scheduled Exchanges under Inter-State Open Access bilateral transactions
Sr.
No.
From
State
From
Utility
To
State
To
Utility
Ex-NR
Periphery
(MUs)
Ex-State
Periphery
(MUs)
Ex-Seller
Periphery
Ex-
Purchaser
Periphery
Applicant Approval
No.
8. Details of Scheduled Exchanges under Open Access collective transactions (through Power Exchange)
Buyer Power Scheduled (MUs)
IEX PXIL Total
Buyer-1
Buyer-2
Buyer-n
Total
9. Details of Bilateral Exchanges of Shared Projects
Project From To Ex- PP Share (MUs) Ex-Periphery Share (MUs)
Project Discom State
Project-2 Discom-2 State
10. Details of Renewable Energy Scheduled/booked to buyers (MUs)
Sr. No. Source Buyer-1 Buyer-2 - Buyer-n Total
1. Solar
2. Non-Solar
11. Monthly Report of Exchange of Energy on account of actions initiated by SLDC
Details of Exchange of Energy on account of actions initiated by SLDC
Sr.
No.
From To Mus Transacted Day Time Block SLDC
action
Reason for
the Action From To
1 Seller 1 Buyer 1 1
2 Seller 2 Buyer 1 2
- - -
n Seller n Buyer n n
Note: For details pertaining to Inter-State transactions, Regional Energy Accounts (REA) issued by NRPC
shall be referred to.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-IV A
Notes:
1. (+) represents DSM charge Payable into the State Deviation Pool Account and (-) represents DSM Charges receivable form the State Deviation
Pool Account
2. Minimum Volume limits for Buyer shall be applicable as per the provision of Regulation 10(D)(iii) of PSERC DSM Regulations.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-IV B
Notes:
1. (+) represents DSM charge Payable into the State Deviation Pool Account and (-) represents DSM Charges receivable form the State Deviation
Pool Account
2. Cap DSM rate for Seller for as determined by Commission is 363.10 Paisa/kWh.
3. Treatment to be infirm power shall be as per provision of PSERC DSM Regulations and DSM Procedure.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-IV C Daily Deviation Summary of State Entities
(A) Sellers
Daily Summary From To
Week No. Month and Year
Date Constituent
Name
Schedule
Injection (in
kWh)
Actual
Injection
(in kWh)
Deviation
Charges
(in Rs.)
Additional
Deviation
charges for
exceeding
volume
limit (in Rs.)
Sustained
Deviation
charges for
Sign changes
Violating (in
Rs.)
Total
Deviation
Charges (in
Rs.)
1 2 3 4 5 6 7 4+5+6+7
Gen 1
Gen 2
-
Gen-n
Gen 1
Gen 2
-
Gen-n
(B) Buyers
Daily Summary From To
Week No. Month and Year
Date Constituent
Name
Schedule
Drawal (in
kWh)
Actual
Drawal
(in kWh)
Deviation
Charges
(in Rs.)
Additional
Deviation
charges for
exceeding
volume
limit (in Rs.)
Sustained
Deviation
charges for
Sign changes
Violation (in
Rs.)
Total
Deviation
Charges (in
Rs.)
1 2 3 4 5 6 7 4+5+6+7
Buyer 1
Buyer 2
Buyer n
Buyer 1
Buyer 2
Buyer n
(+) represents DSM charge Payable into the State Deviation Pool Account and (-) represents DSM Charges
receivable from the State Deviation Pool Account.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-IV D Weekly Deviation Summary of State Entities
(A) Sellers
Seller Schedule
(kWh)
Actual
(kWh)
Total Deviation Charges (Rs.)
Deviation
Charges
(in Rs.)
Additional
Deviation
charges for
volume limit
(in Rs.)
Sustained
Deviation
charges for
sign
change
Violation
(in Rs.)
Adjustment
(if any)
Total
Deviation
charges
weekly
1 2 3 4 5 6 7 8 9=5+6+7+8
For
the
week
(From
Date
– To
Date)
Gen 1
Gen 2
-
-
Gen-n
(B) Buyers
Buyer Schedule
(kWh)
Actual
(kWh)
Total Deviation Charges (Rs.)
Deviation
Charges
(in Rs.)
Additional
Deviation
charges for
volume limit
(in Rs.)
Sustained
Deviation
charges
for sign
change
Violation
(in Rs.)
Adjustment
(if any)
Total
Deviation
charges
weekly
1 2 3 4 5 6 7 8 9=5+6+7+8
For
the
week
(From
Date
– To
Date)
Buyer 1
Buyer 2
-
-
Buyer-n
(+) represents DSM charge Payable into State Deviation Pool Account and (-) represents DSM Charges
receivable from the state Deviation Pool account.
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Detailed Operating procedure for Energy Accounting and Deviation Settlement of State Entities in accordance with the PSERC (Deviation Settlement Mechanism and Related Matters) Regulations, 2020
Annexure-IV E
Summary of Deviation Charges for the State entities
Abstract of Deviation Account of State Entities
Month and Year
Week No.
For the period (Week)
All figures in Rs.
Utilities/Seller and Deviation payable/receivable
Gen-1
Gen-2
-
Gen-n
Buyer-1
Buyer-2
-
Buyer-n
TOTAL in Rs.
(+) represents DSM charge Payable into the State Deviation Pool Account and (-) represents DSM
Charges receivable from the State Deviation Pool Account.
Note: Formats (Annexure-I to Annexure-IV E) are tentative and may change after availability of Energy accounting and Deviation Settlement software under SAMAST Scheme of SLDC.