Jal Power Corporation Ltd.
A-102, Sector-65, Noida-201307 (U.P.), INDIA
Gist of Application for investment approval for
Rangit Stage-IV Hydro-electric Project (3x40 MW) at Sikkim
Jal Power Corporation Limited (JPCL) is setting up 120MW Rangit Stage-IV Hydro-electric Project in the state of Sikkim in
District West/South Sikkim on Build-Own-Operate and Transfer (BOOT) basis under Joint Sector with the Government of
Sikkim. The project is run of the river type with diurnal pondage envisaging installation of 3 nos. Francis turbine driven
generating unit of 40 MW each at a rated head of 103.67m in a surface power station. A long-term Power Purchase
Agreement for 25 years has been signed by JPCL with M/s. Tata Power Trading Company Limited who have further signed
an agreement with West Bengal State Electricity Distribution Company Limited for back to back sale of power. Application
for in-principle clearance for the first stage investment approval for the Rangit Stage-IV Hydro-electric Project (3x40 MW)
has been submitted to the West Bengal Electricity Regulatory Commission and the application has been admitted by the
Commission.
The gist of the application for investment approval is as follows.
1
Name of the Generating Company and address
M/s. Jal Power Corporation Limited
Registered Office:, Flat-B2, Road-7, Film Nagar, Jubilee Hills
Hyderabad- 500033, (A.P.)
Corporate Office: A-102, Sector-65, Noida-201307 (U.P.) India
st
2
Investment approval for
1 Stage Investment approval for Rangit Stage-IV HE Project
(3x40 MW)
3.
Location of the Project
In West/South District of Sikkim
4.
Annual Energy
513 MUs during 90% dependable year (corresponding to 95%
machine availability).
5.
River
Rangit
0
6.
Longitude
88 18’ 10” E
0
7.
Latitude
27 13’ 10” N
8.
Nearest Rail Station
New Jalpaiguri (BG) – 100 Km
9.
Nearest Airport
Bagdogra – 135 Km
10.
Environment Clearance obtained from Ministry On 16.05.2007
of Environment & Forest (MOEF), GOI.
11.
Techno-economic concurrence obtained from
On 06.07.2007
Central Electricity Authority, GOI.
12.
13.
14
15.
16.
17.
Forest Clearance from Ministry of Environment
& Forest Govt. of India.
Acquisition of Land.
PPA signed with Tata Power Trading Co. Ltd.
PPA signed on back to back basis with TPTCL
based on PSA signed between TPTCL &
WBSEDCL
BPTA signed with PGCIL
Evacuation of Power
On 26.12.2007
On June, 2008
On 18.01. 2010
On 03.01.2011
On 24.02. 2010
Double Circuit 220 kV line from Power House to Pooling Station
of PGCIL at New Melli (Distance about 3.2 KM)
18.
Estimated Capital Cost
Rs. 726.16 crore
19.
Cost per MW
Rs. 6.051 crore
The application submitted by the Company may be inspected at the office of the Commission at FD-415A, Poura Bhawan
(3rd Floor) Sector-Ill, Bidhannagar, Kolkata- 700 106, Telephone : 033-2359 2189, FAX; 2359-3397,
email : [email protected] and at the Corporate office of the Company at. A-102, Sector-65, Noida- 201307 (U.P.),
India and certified copies of the application and other details or part thereof may be obtained from the office of the
Commission between 11.00 hrs. and 16.00 hrs. on all working days upto 07.10.2013.
The application made for investment approval has been posted on the website of the applicant at www.jpcl.co.in.
Objections, suggestions and comments, if any, on the above may be submitted, at the office of the Commission at
rd
FD-415A, Poura Bhawan (3 Floor), Sector-Ill, Bidhannagar, Kolkata- 700 106 by 09.10.2013.
This notification has been issued with the approval of the Commission.
Place: Noida (U.P.)
M.K. SHARMA
th
Date: 13 September, 2013
Managing Director
SALIENT FEATURES OF RANGIT STAGE-IV H.E.P. (3 X 40 MW)
I.
LOCATION
1
2
3
4
5
6
7
8
9
Country
State
District
Tehsil
River
Name of the river basin
Longitude
Latitude
Dam Site
10
Power House
11
12
Nearest Airport
Nearest Railhead
II.
:
:
:
:
:
:
:
:
:
India
Sikkim
West Sikkim
Soreng
Rangit
The Brahmaputra
880 18’ 10” E
270 13’ 10” N
1.00 Km upstream of village Reshi in
West Sikkim
: Near confluence of River Rangit and
right bank tributary Rothak Khola
: Bagdogra - 135 Km
: New Jalpaiguri (BG) - 100 Km
TYPE OF PROJECT
1
2
3
4
III.
Type
Installed capacity
Firm Power
Annual energy generated during 90%
dependable year
:
:
:
:
Hydro Electric Project (ROR)
120 (3x40) MW
15.72 MW
513 MUs. (Corresponding to 95%
availability of the Machine)
:
:
:
:
:
:
:
:
:
1232.00 Sq Km
267.00 Sq Km
3473.00 M Cum
1551.394 mm
236.90 mm
9.80 mm
16.33 Cumecs
29.20 C
4.90 C
HYDROLOGY & CLIMATE
1
2
3
4
5
6
7
8
9
10
IV.
Catchment area upto head works
Snow catchment area
Average yield
Average annual rainfall
Maximum daily rainfall
Minimum daily rainfall
90% available discharge
Maximum Temperature
Minimum Temperature
Seismic Factors
-Horizontal direction
-Vertical direction
: 0.250 g
: 0.166 g
DAM
1
Type of Dam
: Concrete gravity dam
1/4
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
V.
Height of Dam
Top of Dam
F.R.L.
M.D.D.L.
Dead storage level
Gross storage capacity
Pondage between F.R.L. and M.D.D.L.
(Live storage capacity)
Dead storage capacity
Dimension of Spillway gate
Crest elevation (Sluice)
Type of gate (Sluice)
Crest elevation (Ogee)
Type of gate (Ogee)
Length of Dam at top
Width of Dam at top
Length of spillway
Free board
Maximum tail water level
River bed level
Intake structure
:
:
:
:
:
:
:
44.00 m
El. 471.00 m
El. 468.00 m
El. 458.00 m
El. 445.00 m
1.81 M Cum
1.22 M Cum
:
:
:
:
:
:
:
:
:
:
:
:
:
0.59 M Cum
10.5 m ( W ) x 14 m ( H )
El. 445.00 m
Radial
El. 465.00 m
Vertical lift
135.3 m
8.00 m
66 m
3.00 m
El. 455.20 m
El. 441.50 m
3 Nos with invert at El. 448.00 m of size
15.00 m width and 22.00 m height
SUBMERGENCE AT F.R.L.
1
2
3
VI.
Area under submergence
: 13.36 Ha
Number of villages affected
i) Full
: Nil
ii) Partial
: Nil
Number of persons/families to be
rehabilitated
i) Urban
: Nil
ii) Rural
: 37 families
DESILTING CHAMBER
1
2
3
4
5
VII.
Type of Desilting chamber
Number of Desilting chambers
Dimension of single Desilting chamber
Size of silt particle to be removed
Average flow velocity
:
:
:
:
:
Underground
3 Nos
120 m (L) x 13 m (W) x 15 m (H)
0.25 mm and above
25.30 cm/sec
HEAD RACE TUNNEL
1
Type of Head race tunnel
: Modified horse shoe
2/4
2
3
4
5
6
VIII.
1
2
3
IX.
Dia of Head race tunnel
Length
Slope
Design Discharge
Number of Adits
:
:
:
:
:
6.40 m
6488 m
1 in 478
128.00 Cumecs
2 Nos
VENTILATION SHAFT
Dia. Of Vertical Shaft from El. 523m to : 7m
El.493.7m
Dia. Of Vertical Shaft from El. 493.7m : 4m
to Overt of HRT
Height upto overt of the HRT
: 73.5m
SURGE SHAFT
1
2
3
4
5
6
7
X.
Type of Surge shaft
Dia of Surge shaft
Dia of orifice
Maximum downsurge level
Top elevation of Surge shaft
Bottom elevation of Surge shaft
Height of Surge shaft
:
:
:
:
:
:
:
Restricted orifice, Semi-underground
18.00 m
2m
El. 445.7 m
El. 492.00 m
El. 427.00 m
59 m
:
:
:
:
Underground
5.50 m
247 m
20 mm to 36 mm
:
:
:
:
Surface
75.30 m
20.20 m
41.385m
:
:
:
:
:
:
:
:
:
16.50 m
18.60 m
9.60 m
9.00 m
11.20 m
El. 344.0 m
El. 344.835 m
El. 352.835 m
El. 348.835 m
PRESSURE SHAFT
1
2
3
4
XI.
Type of Pressure shaft
Dia of Pressure shaft
Length of Pressure shaft
Thickness of Steel liner
POWER HOUSE
1
2
3
4
5
6
7
8
9
10
11
12
13
Type of Power house
Length of Power house
Width of Power house
Height of PH from lowest excavated
level
Centre to centre spacing of units
Length of service bay
Distance between A line to B line
Distance between B line to C line
Distance between C line to D line
Centre line of Turbine
Turbine floor level
Upper generator floor level
Lower generator floor level
3/4
14
15
16
17
18
19
20
21
Service bay level
Top elevation of Roof truss
Number of machines
Type of Turbine
Rated unit capacity
Specific speed
Synchronous speed & frequency
Generator rated capacity
:
:
:
:
:
:
:
:
22
23
24
25
Power factor
Generator voltage
Excitation system
Heaviest component to be transported
:
:
:
:
26
27
28
Power House crane
Maximum gross head
Maximum net head with one m/c
running at rated load
Minimum net head
Rated net head
Minimum tail water level
Maximum tail water level under PLF
Maximum tail water level with three
m/c in operation
Design Discharge
Unit Penstock diameter
: 1 No., 150 / 30 T
: 123.50 m
: 118 m
29
30
31
32
33
34
35
XII.
:
:
:
:
:
El. 355.00 m
El. 374.00 m
3
Vertical Francis
40 MW
178.38 rpm
250 rpm, 50 Hz ± 5%
44.45 MVA with 10% continuous
overload
0.9
11 KV ± 5%
Static
25 T
97.00 m
103.67 m
El. 344.50 m
El. 354.00 m
El. 347.10 m
: 128.00 Cumecs
: 3.2 m (after trifurcation)
TAIL RACE CHANNEL
Tail Race Channel shape/ length
: Rectangular, Length about 42 m
XIII.
GENERATOR TRANSFORMERS
: 16.50 MVA,11/220/ 3 KV 1-Ø -10 Nos
XIV.
SWITCHYARD
1
1
2
XV.
Type of Switchyard/Voltage Level
Number of bays in the switchyard
: 220KV GIS Indoor
: 6 Nos
Evacuation of Power
: Double Circuit 220kV line from Power
House to New Melli Pooling
station(About 3.2 Km).
4/4