Ukai PSP

Ukai Pumped Storage Project (2400 MW), Gujarat, India

Upper Reservoir: (Live Storage: 1.39 TMC; Gross Storage: 2.23 TMC) Upper Dam: (Type: Rockfill Embankment with Central Clay Core; Height: 70 m; Length: 11468 m) Lower Reservoir: (Live Storage: 1.38 TMC; Gross Storage: 2.13 TMC) Lower Dam: (Type: Rockfill Embankment with Central Clay Core; Height: 45 m; Length: 1453 m) Powerhouse: (Type: Surface; Dimensions: 220 m x 24 m x 51.1 m) Penstock / Pressure Shafts: (Type: Finished Steel lined (circular); Number of Pressure Shaft: 8 no. Of Independent Penstocks; Diameter of Penstock: 7 m; Length of Penstock: 1105 m) Tail Race Tunnel: (Type: Concrete lined Circular); No. Of Tunnel: 8; Dia. Of tunnel: 8 m; Length of Tunnel: 25 m) Electro-Mechanical Equipment: (Pump Turbine: Francis type, vertical shaft reversible pump turbine; Total no. Of units: 8 no. (8 x 300 MW)) Two 400 kV Double Circuit Transmission Lines of length 109 km (approx.) from PSP will be connected to 400 kV/765 kV GIS, Kumetha -1 PGCIL Substation Gujarat State (Village Crossing)

The major project components are:

• • Upper Reservoir: 1.01 TMC Live Storage, 0.20 TMC Dead Storage, 1.21 TMC Gross Storage. FRL is at EL 507 m, MDDL is at EL 490 m Asphalt Faced Rockfill Embankment having height of 31 m and length of 5451 m
  • Lower Reservoir: 1.01 TMC Live Storage, 0.05 TMC Dead Storage, 1.06 TMC Gross Storage, FRL is at EL 349 m, MDDL is at 328 m. Asphalt Faced Rockfill Embankment having height of 38 m and length of 2937 m
  • Head Race Pipe / Pressure Shafts: Finished Circular Steel Lined, Total 6 no. of Independent Head Race Pipe / Pressure Shaft with one Pressure Tunnel bifurcating into two-unit pressure tunnel, diameter of Horizontal Pressure Tunnel is 7.5 m and the diameter of unit Pressure Tunnel is 5.3 m. Total length of Tunnel is 944 m.
  • Powerhouse: Surface Pit Type Powerhouse having dimensions, 196.166 m (L) x 28.5 m (W) x 62.2 m (H)
  • Tail Race Tunnel: 7 nos. Concrete Circular Lined having 8.5 m diameter for 300 MW unit and 6.20 m diameter for 150 MW unit
  • Geomembrane faced Rockfill embankment with height in the range varying between 10m and 24 m for creation of Saundatti lower reservoir with 0.706 TMC gross storage capacity./li>

Design Review Engineering of:

• • Civil Works
  • Hydro-Mechanical Works
  • Electro-Mechanical Works
  • Periodic Project Construction Supervision
  • Periodic Inpections