(Amount in Rs.)

Particulars Chilla Tiloth Ramganga Khatima Chibro Khodri Dhakrani Dhalipur Kulhal MB-II

Capacity(MW) 144 90 198 41.4 240 120 33.75 51 30 304

Land - - - - - - - - - 12,700,532

Building 1,847 1,154 2,539 531 3,078 1,539 433 654 385 1,520

Major civil works - - - - - - - - - 74,904

Plant & Machinery (1,289,391) 52,870 2,056,899 (39,011) 10,351,652 2,478,147 53,560 80,936 47,609 1,483,106

Vehicles (65,687) 63,056 (90,319) (18,885) 66,952 33,476 9,415 14,227 8,369 (26,256)

Furniture & Fixtures 92,469 67,126 830,443 26,585 1,583,182 310,649 94,431 142,695 83,938 117,612

Office Equipment 460,363 211,816 500,670 185,551 1,224,669 265,741 74,740 112,940 66,435 380,800

Total (800,399) 396,022 3,300,232 154,771 13,229,533 3,089,552 232,578 351,452 206,736 14,732,218

2011-12 (LHPs with apportionment)

(Amount in Rs.)

Particulars Chilla Tiloth RamgangaKhatima Chibro Khodri Dhakrani Dhalipur Kulhal MB-II

Capacity(MW) 144 90 198 41.4 240 120 33.75 51 30 304

Land - - - - - - - - - 68,529,191

Building 139,120 308,083 191,290 39,997 231,867 115,934 32,606 49,272 28,983 4,616,083

Major civil works - - - - - - - - - 20,638,499

Plant & Machinery (33,883) 10,037,879 634,409 (9,741) 452,361 1,953,768 108,823 164,444 96,732 (212,948)

Vehicles 118,269 70,793 155,745 32,565 521,658 260,829 73,358 110,852 65,207 993,159

Furniture & Fixtures 125,410 196,192 172,439 36,055 512,085 122,275 34,390 51,967 30,569 7,471,551

Office Equipment (151,675) (71,397) (208,554) (43,607) 13,149 (6,429) 3,453 5,218 3,070 (110,680)

Total 197,241 10,541,551 945,329 55,269 1,731,121 2,446,377 252,631 381,753 224,561 101,924,854

2012-13 (LHPs with apportionment)

(Amount in Rs.)

Particulars Chilla Tiloth Kalagarh Lohiyahead Chibro Khodri Dhakrani Dhalipur Kulhal MB-II, Dharasu

Capacity(MW) 144 90 198 41.4 240 120 33.75 51 30 304

PAYMENT 2011-12 15993240.50 15689858.56 25288110.44 6445957.62 24631643.17 12086708.58 5196148.98 7851958.47 4618799.10 12609500.10

PAYMENT 2012-13 0.00 0.00 0.00 0.00 200231.55 208992.00 0.00 0.00 0.00 0.00

IMPACT OF ARREAR OF VI TH PAY COMMISSION FOR THE FY 2011-12 AND FY 2012-13 ( LHP with apportionment)

Chilla HEP November 2013 Page 1

Chapter 1. Annual Review of Technical Performance

1.1 Overview

1.1.1 The petitioner in compliance of the Regulations 12 and 13 of UERC (Terms and

Conditions of Tariff) Regulations 2011 is providing information with regard to

the operational performance related to technical parameters of Chilla Power

House.

1.1.2 The information provided in this chapter relates to actual and expected

performance in 2011-12, 2012-13, 2013-14 and 2014-15. The operational

parameters considered are:

(a) Gross generation

(b) Auxiliary consumption and Transformation losses

(c) Plant Availability factor (PAF)

1.2 Power Station Description

1.2.1 Chilla Hydro Power Station with an installed capacity of 144 MW (4x36 MW) is a

run of river scheme constructed on river Ganga 5 Km upstream of holy town

Hardwar and situated in District Pauri Garhwal of Uttarakhand state. The scheme

consists of a 312 m long, 11.5 m high gated diversion barrage at Pashulok, about

4 Km downstream of holy town Rishikesh. The river inflows are diverted via head

regulator with silt ejector constructed 500 m downstream in the bed of lined

power channel and 14.3 km long and 565 cumecs capacity power channel, which

ends at fore bay of Chilla Power Station where the water is fed to the generating

units through 4 nos. 6 m dia. steel lined penstocks.

1.2.2 There are four generating units having vertical Kaplan turbines directly coupled

with synchronous generator. The turbine output is 36 MW for a rated net head

of 32.5 m. The generators are designed for a nominal output of 36 MW with

lagging power factor of 0.9 and class “B” insulation.

1.2.3 This Power Station was commissioned in the year 1980-81. Due to operations of

machines for past 32 years in highly abrasive silt laden water, efficiency of

Chilla HEP November 2013 Page 2

machines has substantially decreased and availability of machines has been

adversely affected even in spite of best and timely maintenance.

1.3 Energy Generation

1.3.1 The actual Gross and Net Energy generated in FY12 and FY13 as given in True

Up for FY 12 and FY 13 is given in the table below:

Table…..: Energy Generated

Particulars Norms 2011-12 2012-13

Design Energy

/Actual

Generation (MU)

671.29

909.86

861.98

Auxiliary Cons. 0.5% 0.14 0.42

Transformation/

other losses and

consumption

losses (%)

0.5 % 0.42 1.56

Net Saleable

Energy (MU)

664.58

904.74

844.97

The Projected Gross and Net Energy generated in FY14 and FY15 is given in the table

below:

Particulars Norms 2013-14 (P) 2014-15 (P)

Design Energy /

Actual Generation

(MU)

671.29

731.88 772.00

Chilla HEP November 2013 Page 3

Auxiliary Cons.

and

Transformation

losses (%)

1% 1.87 1.87

Net Saleable

Energy (MU)

664.58 (pl. Calculate)

(pl. Calculate)

1.3.2 From the above table it is evident that gross generation in each of the years

under consideration is expected to be more than the design energy of the

plant.

1.3.3 The auxiliary and transformation losses in years 2013-14 and 2014-15 are

expected to be more than the normative level. The steps are being taken to

reduce the auxiliary and transformation losses and it is expected that these

losses are likely to be contained within the norms prescribed by the Hon’ble

Commission.

1.3.4 Chilla Power Project is likely to generate secondary energy in all the years

under consideration.

1.4 Plant Availability factor

1.4.1 The recovery of the Annual Fixed Charges is dependent on the Plant

Availability achieved by the plant. The principle for recovery of fixed charges

on the basis of the availability achieved by the plant has been introduced by

the Hon’ble Commission by its regulations UERC (Terms and Conditions of

tariff), 2011 from the year 2013-14. The petitioner has started computing this

factor as per the provisions of the above regulations from the current year ie.

2013-14.

Chilla HEP November 2013 Page 4

Table 1: Plant Availability Factor

Particulars Norms 2011-12 2012-13 2013-14

(E)

2014-15

(P)

NAPAF / PAFM

(%)

74

NA

NA

75.65

75

Planned Outages

(Hrs)

NA 3395 3717 1029* -

Forced Outages

(Hrs)

NA 413 804 1003* -

*Upto September 2013

1.4.2 The Chilla Power Station is likely to achieve the normative plant availability

factor determined by the Hon’ble Commission for the year 2013-14 and 2014-

15 as well. The Power Station has consistently maintained machine availability

but because of ageing and low efficiency due to this plant availability factor

has been lower.

1.4.3 The plant suffered planned and forced outages in 2013-14 due to increased

flushing and enhanced discharge at Pashulok Barrage due to flood in

Alaknanda river, replacement of MooG value of unit no.4, fault in Governor

Battery, leakage from gland seal of Units no. 4 &5, maintenance work in u#1,

lowering problem in TGB intake gate of unit no.2, fault in LT supply, TGB

problem in Unit no. 1 and leakage in D/T Window Concrete of Unit-2. The

Petitioner for the year 20014-15 would lay emphasis on preventive and

planned outages for better power station availability.

(1)

Sl.

No.

Head Description of Work Additional

Capitalization for

F. Y. 2013-14 (In

Rs. Crores

Additional

Capitalization for

F. Y. 2014-15 (In

Rs. Crores

Need/ Urgency of Capex How the Capex will have

improvement in performance of

plant/ life enhancement

Justification

of cost/ rate

1 Land - - - - - -

2 Building - - - - - -

3 Major Civil

Works- - - - - -

1) Procurement of D. G. Set 0.50

-

For urgent supply of Power

House.

Without DG Set it is not possible

to start the Power House during

grid fail & it will directly effect the

generation of Power House.

Current

market

survey.

2) Up gradation of governing system of

machines.

1.50

-

To improve the performance &

reduce the downtime of

machines.

By this loss on account of

governing system failer is

minimize.

Current

market

survey.

3) Installation of 132/11 KV, 5 MVA

Transformer Alongwith its Associated

Circuit Breaker, Isolators etc.

1.80

-

For unintrupted station supply Availability of station supply

during grid failer is must and it will

directly effect the generation of

Power Station.

Current

market

survey.

4) Procurement of complete runner

assembly and three set runner blade.

2.80 0.00 To reduce the downtime

invalved in the major repair of

machine.

In past tehri scenario

maintenance time available for

machines is very short. So by this

generation of Power House

incrases.

Current

market

survey.

5 Vehicles Procurement of 2 nos. Vehicles. 0.15 Vehicles in use are very old. For better working replacement of

existing vehicles is very

important.

Current

market

survey.

6 Furniture &

Fixtures

Procurement of Furniture. 0.10

-

Existing furniture is very old &

beyond economic repair.

For better working replacement of

existing furniture & renovation of

Office is very important.

Current

market

survey.

7 Office

Equipment &

Others

Procurement of various IT equipments 0.05

-

Some of the available IT

equipments are old &

damaged, beyond economic

repair.

For better working replacement of

old & damage IT equipment is

very important. Some new IT

equipments are also required.

Current

market

survey.

Total 6.75 0.15

Additional Capitalization Data for F. Y. 2013-14 and 2014-15

Name of Project: Chilla Power House

4 Planr &

Machinery

25 lac.

10 lac.

Total 35 lac.

a) Restoration of 33 KV Bhupatwala-Chilla line.

b) Procurement of one no. of drainage pump & spares.

Increase in O&M expenses due to floods/heavy rainfall in the month of June 2013 (2)