Teesta - Ministry of Power

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SILT FLUSHING TUNNELS (for both the dams) Size and Shape 2m X 3.0m, D-Shaped HEADRACE TUNNELS 6 Preliminary Feasibility Report Teesta (I) HE Project (4 x 80 MW) Size & type (for both the tunnels) 4m Dia, Horse –shoe shaped, concrete lined Design discharge 31.76 m 3 /sec Length for HRT-I 3.5 Km Length for HRT-II 4.25 Km SURGE SHAFT Size & type 15 m diameter Vertical Shaft height ± 75 m PRESSURE SHAFT Number & Type Two ; Steel Lined, Inclined Diameter 2.5 m dia Length 825 m POWER HOUSE COMPLEX Type Under ground Tail water level at outlet 2675 m Turbine Axis Elevation 2677.82 m Type of Turbine Vertical Pelton Generating Capacity 4 X 80 MW Gross head 584.85 m Rated Net head 576.85 m Design Discharge 63.52 m 3 /sec
Power House Size 141 m X 22m X40 m TRT Diameter and type 5 m dia, Horse-shoe Length 1000m Tail Water level at outlet 2675 m SWITCH YARD Size 250M X180 M POWER GENERATION Installed Capacity 320 MW (4X80MW) Energy Generation in 90% dependable Year 7 1298.12MU Preliminary Feasibility Report Teesta (I) HE Project (4 x 80 MW) COST ESTIMATES & FIANANCIAL ASPECTS ( Rs. Crores) Civil Works 788.45 Electro Mechanical Works 301.03 Sub Total ( Generation) 1089.48 at June,2003 Price Level Transmission works 1.40 Total hard cost 1090.88 Interest during Construction 115.71 Grand Total 1206.59 Tariff for first year per KWh a. with 12% free power b. without 12% free power Levellised Tariff per KWh a. with 12% free power b. without free power Rs. 2.05 Rs. 1.80 Rs. 1.66 Rs. 1.46 COSTRUCTION PERIOD 5 years
Page 1: 50 000 MW HYDROELECTRIC INITIATIVE
Page 4 and 5: TITLE LIST OF PLATES Preliminary Fe
Page 6 and 7: Preliminary Feasibility Report Tees
Page 8 and 9: 2 Preliminary Feasibility Report Te
Page 10 and 11: Dam Top EL.3270 m River bed level a
Page 14 and 15: 1.2 STUDIES/INVESTIGATIONS UNDERTAK
Page 16 and 17: 1.3.5 Environmental Aspects 10 Prel
Page 18 and 19: Preliminary Feasibility Report Tees
Page 20 and 21: 13 Preliminary Feasibility Report T
Page 26 and 27: Table 2.1 POWER SUPPLY POSITION OF
Page 28 and 29: CHAPTER -III PROJECT AREA 20 Prelim
Page 32 and 33: 3.2.6 Natural Resources 24 Prelimin
Page 34 and 35: Rangit Basin 26 Preliminary Feasibi
Page 36 and 37: 10. Rammam Stage-I 70 MW Rammam 11.
Page 38 and 39: 4.1 INTRODUCTION CHAPTER-IV TOPOGRA
Page 40 and 41: Group Lithology 31 Preliminary Feas
Page 46 and 47: Photo-2: A view of Power House Area
Page 48 and 49: 5.1 GENERAL CHAPTER -V HYDROLOGY 38
Page 56 and 57: 9. Sirwani (Power House Site-Teesta
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52 Preliminary Feasibility Report T
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28°0' 27°45' 88°15' PAKI CHU 88
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Year TEESTA BASIN PROJECTS 56 Preli
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TEESTA-I H.E PROJECT AVERAGE 10-DAI
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Discharge (cumec) 55 50 45 40 35 30
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Elevation(m) Area(Ha) Capacity(Ha.m
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CHPAPER-VI CONCEPTUAL PLANNING AND
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6.2.3 Reservoirs 71 Preliminary Fea
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6.2.7.2 Tail Race Tunnel 75 Prelimi
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6.4.1.8 Instrument And Remote Contr
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6.4.2.5 Silt Flushing Tunnel Gates
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Preliminary Feasibility Report Tees
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90% Dependable Year: 84 Preliminary
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Table-7.1 DISCHARGE DATA 86 Prelimi
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PERIOD Table-7.5 92 Preliminary Fea
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INCREMENTAL (DMU/DMW) 2.60 2.40 2.2
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Table-7.7 (B) 96 Preliminary Feasib
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Table-7.7 (D) 98 Preliminary Feasib
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Table-7.7 (F) 100 Preliminary Feasi
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Table-7.7 (H) 102 Preliminary Feasi
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Table-7.7 (J) 104 Preliminary Feasi
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Table-7.7 (L) 106 Preliminary Feasi
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Table-7.7 (N) 108 Preliminary Feasi
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Table-7.7 (P) 110 Preliminary Feasi
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Table-7.7 (R) 112 Preliminary Feasi
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Table-7.7 (T) 114 Preliminary Feasi
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9.2 PHYSICAL ENVIRONMENT 9.2.1 Clim
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120 Preliminary Feasibility Report
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9.6.5 Impacts on Socio-Economic Env
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10.1.3 Power Availability 140 Preli
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11.2.10 Tail Race Tunnel: 149 Preli
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Sl. No. Name of Work Unit Quantiy D
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CHAPTER -XII COST ESTIMATES 152 Pre
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2.13 Consultant’s fees including
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S. N. ABSTRACT OF COST OF C - WORKS
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S. No. COFFER DAMS (FOR BOTH THE DA
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S. No. SPILLWAYS (FOR DAM-I & DAM-I
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S. No. INTAKE STRUCTURES (FOR BOTH
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S. No. ADITS 170 Preliminary Feasib
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S. No. SURGE SHAFT 172 Preliminary
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S. No. POWER HOUSE COMPLEX 174 Prel
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S. No. HYDRO MECHANICAL EQUIPMENT 1
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S. No O-MISCELLANEOUS 182 Prelimina
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S. No. V - RECEIPT & RECOVERIES 190
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13 14 15 16 17 18 Custom Duty @22%
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Year Estimated Cost at June 2003 P.
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CALCULATION OF ENERGY RATE WITH PRE
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TALEM H.E PROJECT R.B.L- EL. 3630 F
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TALEM HYDRO ELECTRIC PROJECT (3 X 2
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27° 47' LOHNAK CHU 3400 U/S COFFER
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H.R.T. 4.0 MØ H.S. SHAPE (FROM DAM
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L10 ? L9 L8 L7 PARAPET L6 ? L5 ? 17
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HRT4000 Ø FROM DAM-I 32Ø 5000 LON
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The rock types encountered in the a
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SEISMOTECTONICS AND SEISMICITY Seis
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interbanded and are expected to pro
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founded on sandy soil is higher tha
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X Some well built wooden structures
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1940 8 2 3 3 59 . 0 28 . 00 90 . 50
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1988 5 10 7 16 16 . 1 25 . 32 90 .
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1997 1 25 20 8 28 . 7 30 . 00 88 .
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2000 10 3 17 8 22 . 4 26 . 88 89 .
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REPLY OF COMMENTS OF CEA (HP & I )
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REPLY ON COMMENTS OF SP&PA DIVISION
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Sikkim is on the higher side as the
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of the project on the fast track ba
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Consistency of data Water availabil
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YEAR/ MONTH I 1976 II III I 1977 II
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