.# OFFICE OF THE CHIEF ENGINEER (ELECTRIC)

BAGLIHARHYDROELECTRICPROJECTCHANDERKOTE Email cee_bhep08@ed$nuil. corn Tel/fnx - 01998-288316

NO. CEEIBHW I I 99 Dated : (0- 08 - Wb

The Director Finance JbK State Power Dev. Corpn. Sinagar

Sub: Valuadion of BHEP - I L I1 Ref : Your letter No. JKSPDC/Finam/817-20 df: 21-07-2016

. - Sir. m In reference to your office letter No. & date mentioned above regarding the subject. In this connection kindly find enclosed herewith the valuation report of Baglihar Hydro Electric Project Stage-l & II for information & further necessary action at your end please.

Youn faithfully,

Copy to the : 01. Managing Director JKSPDC Srinagar for inf. ,-. 02. Executive Director (E) JKSPDC Srinagar for inf. 03. Superintending Engineer 4E) BHEP Chanderkote for inf. 04-05. Executive Engineer Generation Division BHEPI&ll for inf.

VALUATION REPORT OF

BAGLIHAR HYDRO-ELECTRIC PROJECT, STAGE-I & II

CHANDERKOTE

(J&K STATE POWER DEVELOPMENT CORPORATION)

1&.K

ALAK CONSULTANTS INSURANCE SURVEYORS AND LOSS ASSESSORS PVT.LTD. (ENGINEERS, INSURANCE SURVEYORS LOSS ASSESSORS & INDUSTRIAL VALUERS)

8204- Al. North Block. Bahu Ploza Roll Head Complex. Jammu-180012

I

pursuant to the advises received by us from the chief engineer(E) ~aglihar Hydro

\ Electric Project, Chanderkote and after fixing up with the officials of Jammu &

b Kashmir State Power Development Corporation, a visit was made to the project site on 2nd August 2016 . Detailed discussions were held with the officials of the

I carporation to know the purpose, requirement and technicalities far conductifig

b valuation of the Baglihar Hydro Power Project. We had also done valuation of this

1 project last year and issue our report. 1

I The basic information asked for & collected were in the form of:

I a) Salient features of the project.

1 b) Basic Information /Technical details to the extent possible for various plant 1 - & machinery.

c List of major contracts during th*erection of the prowt. I

d) Details of previous valuations arranged by the corporation. B

1 Based on the above information & our visit to the plant the valuation report is

b submitted hereunder:-

BRIEF PROFILE & OUR SCOPE OF WORK

NlJs i&K State Parer Development Co~posath, hmmu & Kashmir are the principal owners of the 450 MW Baglihar Hydro Electric Project. The Govt. of J&K had got the project insured.

The scope of work as advised to us by the Chief Engineer Baglihar Hydro Electric Project was to work out the current estimated Reinstatement value of the entire Project including Civil structures & Hydro mechanical and Electrical assets of the project for the purpose of knowing the values of various section of the project which were intended to be insured. The valuation was proposed fw fixing the

reasonable reinstatement value.

1 Keeping the above scope of work in view we carried out the valuation & B verifications.

SALIENT FEATURES OF BAGLIHAR HYDRO ELECTRIC PROJECT

LOCATION

I

LONGITUDE 1 7~~18' 10" - 75' 20'

STATE I

LATITUDE 1 33' 9' 30" 33' 11'

Jammu & Kashmir I

DISTRICT Ramban

I HYDROLOGY Name of the River

-

Chenab

Diversion Floor (1:25 Years)

Type of Scheme

Design Floor (PMFI

3000 cumecs

I

Run-of-the river

16,500 cumecs

Min Mean Discharge

Full Reservoir Level

125.89 cumec

840masl

Reservoir Max. Draw Down Level after Stage I

, 836 mas1

Gross storage upto FRL (700-840 mast) I

DAM

I Width a t Top 1 8 meters

428.28 m3

TYW I

%id gravity cwrece dam

Length

Head Effective head 1 123.20 meters

362.862 meters

Height (from deepest foundation) 143.00 meters

I Spillway crest elevation 808 meters

NEW DIVERSIONS ARRANGEMENTS

I Number of Spillway bays ( Five

-~emporary under sluices in dam blockl112 &

13

~ o t t o m outlet in dam block #11

Escape channel

2 Nor. in each block at EL 766 & 763. (~ize=3.5 *8.2 m) designs discharge through each each u/s 575 cumec. Dia 6.8 meters. El. 733-732 mas\, discharge=200, curnec approx. Length 120 rn ,width 12m,dischage 1870 cumec

I

Types of gates ( Radial gates [top seating type) with Hydraulic

Size of gates 10.0 meters (w) x 10.5 meters (H).

CUTE -SPILLWAY

'

Erest elevation B21.V meters

No. of bays Three

Location

I

I Size of gate 12 meters (W) X 19 meters (H)

On Left Flank

Designs flood

I Type of gate 1 Radial gates with Hydraulic Hoists

5790 cumecs

Auxiliary spillwav

Number of bays I One

Size of gate 6.0 meters (width) X 3.0 meters (height)

Type of gate Fixed wheel gate

I Stil l elevation I EL 821.00 mas1

INTAKE Capacity 430 cumecs

Openings - 2 Nos. 10 m

I HEAD RACE TUNNEL I

10 m (W) x 7.5 m (h) I

I

Size and shape . 10.15 m dia Circular

Types of gates Fixed wheel gates with hydraulic hoists

I Length

SURGE SHAFT Location

Type Size m s Emergency Gates

Size 1 7.5 M D - Shaped G

2080.75m ( Sloping length)

Upstream of power house (fully underground) Restricted office type 27.5 m dia R m Fixed wheel gates (bonnet Type)

1 N0.3 192.740 rn PUWER HOUSE Type Installed capacity (stage-1) & Stage-ll Number of cavities Size of cavities

PRESSURE SHAFT /PENSTOCKS

Underground 450 MW & 450 MW Three

a) For machine hall 121 m (L) x 24 m (W) x 50 m (H)

b) For transformer hall cum GIs 112.25m(L) x 15m(W) x24.5m(H)

c) Collection Gallery cum D/S Surge chamber 75m(L) x 12.5m (W) x43.0m(H)

Number Shape Size Length

ACCESS TUNNEL TO POWER HOUSE

Three for stage 1st &Three for stage 2"d Circular 5.5 m dia No.1 214.61 m

- I Length ( 354.8 m

-

I

Size 1 9 m(W)x 19 to 27.5 m (H) x 130 9 m (L)

I TAIL RACE TUNNEL

SWITCH YARD Size

Shape

6 0 M x 3 0 M

D --Shaped

-

POWER PLANT EQUIPMENT Turbines

I

Francis

M l valves

Hydro generators

TraNf~crners

Switchgear

Butterfly type located in machine hall

Vertical shaft, synchronous generator 166.67 MVA

€pray type Ckss F i~suIatim 1&5 k\r 1- k\l single phase transformers (10 Nos. including one spare transformer) 400 kv SF3 gas insulated switch gear

I

- Minimum mean discharge 125.89 cumec

E0TCrm~es

POWER OUT PUT

02 m. C~mres with Lifting Beam

Installed capacity

I

Annual enerageneration I

3 X 150 M W for stage-l and 3 x 150 for Stage-ll

I

Film power 141 MW

90 % availability year 2800 GWH

- HYDROLOGY

The river Chenab, also known as Chandrabhaga is informed by confluence of two

rivers, namely Chandra and Bhaga near village Tandi in Himachal Pradesh. These

two rivers originate from the glaciers in Lahaul and Spiti areas of Himachal Pradesh. After flowing through Pangi Valley of Himachal Pradesh the river Chenab enters J&K State near the famous Paddar sapphire mines in district Kishtwar. The

t~tal ef river fc~m saurse te AkhnnQar is 584 km.. It ddta~ by a~ptQxima.te1.y 5.34 km in i ts length, providing immense hydro power resources. The river

Chenab drains a catchment area of 17325 sq.Km a t ~ a ~ l i h a r dam site. The area

contributing to precipitation run-off is about 7195 sq.km and 1030 sq.km of

ca&hmmt area at Bagiiha~ is under perpetua1 snow ewer.

A once in 1000 year flood of 16500 cumecs has been adopted for designs of 1 - spillway and energy dissipation works of Baglihar project. For river diversion I works to be effective during non-monsoon months (October -April) once in 25 I years ftood of 3000 ctlrnecs has been adopted.

GEOLOGY

The rock formations in Baglihar project area arc stratigraphically classified as Dogra slates and quartzites and phylllites of Salkhala Series of Precambrian Age.

These rock formations (Dogra Slates and quartzites and phyllites of Salkhala

Series) have been thrust over younger Murree Sandstones and clay shales of

Miocene Age along tectonic features called "Murree Thrustff. Due to the proximity

~f the thrust, m& ~f the prajects area s h ~ w develment ~f a number ef shear zones parallel to bedding and across it . In addition a number of joint sets have developed in the rock mass. The rocks even show micro-jointing or incipient

joints. The rock splits along these planes on blasting. The foliation is p e i w ~ t ! y Fd25W(PS25€ and dipping 70 Fd 65 € dkeahs.

the eastern boundary of Kashmir block. The zone of intersection of MBF-

l(Murree thrust) MBF-2 (Riasi thrust) with KIF zone appears to be most probable seismic source zones (SSZ) from the BHEP site. However, such events for earthquake hazards can k a s s u d to occur a10ng them closet to the BHEP site.

Various tectonic lineaments have been interpreted from satellite imageries in North West Himalaya by GS1.A mega lineament has been reported about 30

km west of BHEP site with an approximate trend sub-parallel to KIF and two intermediate lineaments NW and SE of BHEP site.

For evaluation of seismic hazards for earthquake resistant design of

structures in Baglihar Hydro Electric Project, the down dip influence zone of MBT -1 and MBT-2 on either side of their surface trace and KIF and Mega

lineament (west of BHEP site) could be considered as seismic source zones (assuming their attitude to continue down dip upto 20km or large depth, to

work out probable source dimension to evaluate maximum magnitudes) distinguishing the seismic conditions in the area around the BHEP site situated in Kashrnir block, for events with strikes slip mechanism along KIF

and mega lineament west of BHEP site and thrust EWUIXS~} mechanism along MBF zones . The various SSZ around the BHEP site assumed to be capable of generating earthquake are listed in table below:

1

I The maximum magnitude of probable seismic events in these zones has been indicated keeping in view the association of epicenters of known earthquake

b and probable source dimensions and types of fault ruptures (source

1 mechanism).

I Assumed seismic Source Zones around BHEP site in Kashmir block.

1

I I I I MAJOR COMPONENTS

S L NO.

DAM

The dam consists of 5 spillway blocks. I each of 17m width,3 chute spillways of 12m width each and one auxiliary 1 spillway of 6m width. There are 7 non overFiow blocks on the left bank and 6 non-overflow blocks on the right bank. The total length of the dam a t top is 362.862m. The roadway on top of dam is a t EL 843 m allowing a free board of 3 m. The deepest foundation level for the dam is a t El 7OOm.Thus the height of dam is 143m above the deepest foundation level.

Based on the pond levels the inlets level of intake has been kept at EL 821 m and the spillway crest level has been kept at El 808m .The energy dissipation arrangement consists of splitters and ledge on spillway surface. A 70m long plunge pool is provided below the spillway.

POWER INTAKE

The intake has been designed for a discharge of 430 cumecs. The inlet level of intake has been kept a t I'L 821 m i.e. 13 rn above the spillway crest level. The intake of stage -I has two inlet openings of 10m (W) x 7.51 T1 (H) size. The intake for stage project which may come in future hits also been constructed along with the intake of stage -1 including a part of HRT I I also as it would not have been practically possible to construct these structures at later stage.

HEAD RACE TUNNEL

It is a 2080 m long 10.15 m dia concrete lined and grouted circular water

conductor system to carry a design discharge of 430 cumecs with a maximum velocity of 5.28mlsec. It has been constructed by conventional method of drilling

b!a.st!ng and muck1.n.g.

a:

b t - SURGESHAFT

A restricted orifice type surge shaft has been provided a t the end of HRT. The

surge shaft is 77 m high having 27.5m finished diameter. The area for the orifice is

provided by an opening of 6.14 m dia in orifice slab. The surge shaft is fully underground. The approach to the roof vault a t the top of surge shaft is through an approach adit cum air vent of 308m in length.

PRESSURE SHAFTS AND PENSTOCK

The three turbines each of the powerhouse for stage 1st & 2nd are fed through

separate pressure shafts of 5.5m dia each starting from the bottom of the surge

shaft. The pressure shafts negotiable a drop of 84.425 m between center line of

HRT a t junction with the surge shaft a t EL 780.425 and centre line of machine EL

696111. The length of pressured shafts PS #I, PS #2 & PS #3 is 215m, 196 m and

X!3 rn respectively..

PRESSURE HOUSE COMPLEX

The underground cavities of machine hall and transformer hall are located on right bank of river chenab. The machine hall cavity is 24 m (W) x 50 in (H) x 121 m (L). It houses three machine bays, a 30m long service bay on east end control building block (25m long) on the west end. The transformer hall cavern is of size

15.0m (W) x 24.5m (H) x112.25m (L) and is parallel to powerhouse carven. This

cawen hause 10 sirrgle phasg Wan.sf~rm?rs (3x3 dus 0n.e spare) at ~U- .~RL The cables from the switch gear room have been taken to a surface pothead yard a t

EL 750 m through a cable tunnel of 185 m length.

BUS DUCT CABLE TUNNEL / SWITCHYARD

n lI Three D shaped bus shafts carry 16.5 K.V isolated bus ducts for evacuating power from generating units to transformers. From GIs power is evacuated through cable tunnel up to pot head yard through 400 KV XPL cables for further transmission to grkl. The swikh yard has pots, ~~, wave traps, C W and lighting arresters.

TAILRACE SYSTEM

The tail race system consists of a collection gallery of size 12.5m (W) x 44m (H) x

75m (L), tailrace tunnel of 130 m length and outlet structure. The collection - gallery also functions as downstream surge chamber. The draft tube gates located

a t the junctions of draft tube tunnels with wiiection gaikry are operated from collection gallery a t EL 726 m which is lorn above the roof of collection gallery.

The 130 m long concrete lined tail race tunnel is 9 m wide and meets the outfall

structure a t El 700 mas1 (meters above sea level).

TFIANSMtSSrn SYSTEM

The energy generated a t the Baglihar project is evacuated through 400 KV double

circuit transmission line from the station switchyard to kishanpur station (near - Udhampur) on Northern Grid. The transmission line has a length of 67.93 km with

215 towers.

BENEFITS

The project generates 2800 million units of energy in a 90 % dependable year. It will also promote pisciculture, tourism & water sports in the area.

PROJECT LAYOUT

The project having 2 stages. Stage 1 (450 MW) Stage 11 (450 MW).

The Stage I & Stage II has the dam and water intake works as common. - The other major works in both the stages are separate. The complete project

works are divided into main heads and their connections with existing phase are tabulated as under:

Project component

roject component

1

b Besides above most of the adits are separates except for few adits which were

b used in Stage I have been used up to a particular length and thereafter adit to 1 .- current works has been excavated.

b I VALUATION

As already stated in our report that the project authorities assigned the job of valuation of the . project . assessts to us to know the minimum replacement value of the project for taking insurance cover which is a mandatory requirement. The project authorities invited tenders for taking a comprehensive insurance policy for the complete project from various insurance companies.

The 'Present Day Replacement Value' means the cost at which this particular plant can be built as a new which would include the cost of al l civil work / electromechanical works / Hydro Mechanical work and all other related works.

The cost of tand, License fee, interests however are not to be formed part of this valuation. Now to arrive at present day cost, some of the following major factors were relied upon which are listed hereunder:-

a) tocation of the project. b) Nature of work involved c) Quantum of work involved in terms of Tunneling, Dam, Power House for

civil works & machinery for erection works.

4 The cost a t which major contracts that were awarded and the cost a t

which they were completed. The fixed Asset registers of the assets / works.

All these informations figures were produced and then escalated with the

relevant indices; these indices were arrived a t talking into considerations the following factors: The basic costs were obtained from various departments of the project which

included - Procurement cost.

- Freight. - Custom Duty / w other !ma! kvis.

- Exchange Rate fluctuations as on 03.08.2016.

- Erection cost.

- Commission cost.

A. Escalation Factors Over the years there has been escalation in the prices depending on the type of

machinery. Labor and the country of procurement .So to arrive a t the optimum

Escalation Factor the following RBI indices are linked together in the respective

propOKtion:

a) Metal

b) Non metal

c) Electrical machinery d) Non E k r i c s t l machinery

e) Fuel cost

f) Labor cost.

Besides a b v e factors w.r.t exchange rate variation and other such cost are taken

into consideration.We appied different escalation factors for different items viz-

a-viz Civil Works, Electromechanical equipment, Hydro-mechanical equipment

etc. The multiplication of the 'Basic Cost' and 'Escalation Factor' provide us with

the present day Replacement Value which in our opinion is optimum val-ue to be insured i.e Optimum Sum Insured.

A. Computers & communication equipment

The costs of computers, communication equipments have been coming done over

the years and there have been technological advancements on the other hand. So to arrive at the present cost relevant factors are applied to deescalate the basic cost.

8. Inventory cost ^ The cost of inventory is taken as is provided by the Power Plant.

The Details of.Valuation for Stage I is given hereunder:-

The valuation of al l the components of BHEP Stage-l has been worked out as per details given in Annexure "A-1"

ABSTRACT OF VALUATION OF BHEP STAGE-I

The Summary of Valuation is as under:

Net RI value of the project Stage-l Rs.6241.39

6 7

(Rupees Sixty thousand two hundred fourty one & thirty nine Lacs only)

1 The Details of Valuation for BHEP Stage-ll is given hereunder:-

Cost of Cables Civil Structures

Sub - Total = Grand Total

b ,-

The valuatian af all the camponems af BHEP Stage-ll has heen warked aut as per ' details given in Annexure 'Y1 & "Y" b

D ABSTRACT OF VALUATION OF BHEP STAGE-II

7.73

7.73 6241.39

b The Summary crf Valuatian is as. under;

b Reinstatement value of Main Civil Works D

Hydro electro mech.works off Shore ' Machinery supply B

I Hydro elearo rnech.works on Shore

Machinery supply I

Total value for Stage-ll OF BHEP 1

GENERAL ABSTRACT OF VALUATION

T&al RI uabe Q€ the pr~ject Stage4

Value for Stage-ll OF BHEP

Rs. 418.80

Rs.2227.41 CR.

SAY RS.2227.41 CRORE

B Total value for stage -I &Stage I1 Rs.8468.80 CR.

B - Based on the information1 docurnentslprovided by the project authorities & our B physical inspection of the project in our opinion the above value is considered to b be quite fair and reasonable b

This valuation report is being submitted in Jamrnu & is without prejudice. b

FOR ALAK CONSULTANTS INSURANCE SURVEYORS & LOSS ASSESSORS PVT.LTD

Rovi Dhor (Managing Director)

ANNEXURE "A-1 TO 7U

SL NO.

I

b

B REF.NO.9695A-16

b

b ~ ~ 1 s OE VALUATION OF BUEP STAGE -1ST

b

D 1. INFRASTRUCTURE & CIVIL HYDRO MECHANICAL WORKS

b b b B D

b b

b b

b

b

b

b

b

b

b

b

B b b b

b

b b

B b b 1

v

Left bank protection Plunge pool rehabilitation RT wall

Totat Additional works Black hole &inlet slope protection

10.57 27.89 7.24 81.68

232.30

25.82 68.16 17.68 199.32

567.67

1

B

1 -

1

. )

B

* I b

P B

Structures Amount In USD

Amount in USD

I Transformer

6 I Station Service Transformer, Station 1 127,766.22 1 0.63 1.77 1

I 1 1 3 4 5

Electronic equipment installed a t 150 Main inlet value(MIV) Turbine Generator & Excitation Generator Terminal Equipment Generator Transformer & Aux

Aux Transformer Total ( 14,686,917.22 1 72.70

- II 1 2 3 4 5

MW unit No. 1 of 801,092.50

4,037,533.90 6,150,531.30 599,193.20 2,970,800.10

203.88

111 1 2 3 4 5

C. List of other Allied Electric equipment installed at 3~1% MW of Baglihar Hydro Electric I

Electronic equipment installed at 150 MW unit No.2 of Baglihar Hydro Electric Project

Transformer Total

Grand Total

! Project I I I I

Amount in INR-2006

Baglihar Hydro 3.97 19.99 30.45 2.97 14.71

I I I I S.No I Structures I Amount in USD / Amount in 1 Reinstatement

Reinstatement value

Electric Project 11.12 56.02 85.35 831 41.31

Main Inlet Value (MIV) Turbine Generator & Excitation Generator Terminal Equipment Generator Transbmw & Aux. Transformer

Total 1 14,559,151.06 Electronic equipment installed a t 150 MW unit No.3 of

14,559,151.00 43,805,219.22

3.97 19.99 30.45 2.97 14.T

801,092.50 4,037,533.90 6,150,531.30 599,193.20

2,97O,S#. 10

72.07 Bagliha Hydro

3.97 19.99 30.45 2.97 14.7

Main Inlet Value (MIV) Rirtjme

Generator 81 Excitation Generator Terminal Equipment Generator Transformer & Aux.

- I Cables 2 I Coding water sptemjdrai~ge & 1 %-= 1 4.90 1 19-60

11.12 56.02 85.35 8.31 41.31

202.11 Electrlc Project

11.12 36.02 85.35 8-31 41.31

801,092.50 4,037,333.90 6,150,531.30 599,19320 2,970,800.10

72.07 216.84

I INR

1 dewatering system 3 I LV & MV equipment & lightining 1 2,121,449.40 1 10.50 29.43

202.11 608.10

value

I equipment (including PHY MV I I 1 I

1 1 400 KV GIS Switchnear & 400 kV 1 25.088.316.30 1 124.19 1 348.10

I Switchgear and transformer) a 1 &'RM~ bb& dt~a--P 8 ~ f e hall -1 757,6602.00 1 3.75 10.50

5

6

elevator Compressed air system Overhead travelling crane & EOT

209,275.00 2,084,039.00

1.04 10.32

2.90 28.92

7 8 9 10 11

!.casing

B Replacement Cost

b

crane 5T DG set 1250 KVA with panel PHY

House equipment Ventilation equipment (HVAC)

Oit fittration plant Section of draft tube and sprial

12 / Cables (MV power cables, LV power 1 2,545,340.00 1 12.60 I &control cables)

2.45 18.89 40.46 8-79 20.18

178,000.00 1,361,219.00 2,946,451.00 Ei;33,99.00 1,454,936.00

35.31

Total ( 40,370,423.00 1 199.83

B

B Ill TRANSMISSION LINE

0.88 6.74 14.58 3.14 7.20

565.53

' I (c) of Equipment Installed at out door 400 Kv pot nead Yard rn S.NO I Name of equipment )unit ( Q W \-of I Reinstatement

S.No

I

I1

SL NO. 32665

DESCRIPTION

Infrastructure Work Civil Hydro Mechanical work

Electro mechanical Work Totill=

INR IN CRORES VALUE 63.95 1,983.03 2,046.98 439.66

248664

RIV 156.27 4807.42 4963.69 1237.95 620164

, \ b b

b

b Replacement cost,

S.No

IV COST OF CABLES

'I'

DESCRIPTION t INR IN CRORES VALUE

Transmission Line Pot Head Yard -

Totat =

S.No

RIV

1

2

3

9.81 6.50 16.31

Description

4 5 6

19.60 12.43 32.03

INR IN CRORES Cast of I Reinstatement

11 KV Feeders emanating from 132/33/11 KV Grid Station Ehanderkote 11 KV Feeders emanating from 33/11 KV R/ Station Dharmund 11 Kv Feeder emanating from Pot Head Yard to

5

-

Dam Site 11 KV HT XLPE Cable Al. PVC Cable 31/2 Core 185 mm2 Distribution Tramformws

cable 0.80

2.20

0.17

Value 1.46

4.01

0.30

0.02 0.03 0.05

0.03 0.04 0.89

V ClWL STRUCTURES

1.00 -

17 1 33 KV Line on S.T. Pole PDD Dharrnund R/ stn to I PDC Dharmund R/stn

Replacement cost,

0.51

Total / 3.78

9 hn race tunnel b

10 Outlet works ind.outlet etruuure

7.73

41 Misc.(e.f preventative measurers at rigM bank etc.)

6. Inh-dstrudure & constludion faciliies

C Supply of Hydm mechantcat equlpment(indudhg penstock steel liners)

D ~ ~ c O n c o n t ~ ~ ~ & cwnmission d H y d r a MechNpmwA 2OOEiM15 1XbM7 (including penstock steel liners)

~zzfi~sfi7a79 nn