Ukai Hydro Power Station

UKAI HYDRO POWER STATION

Ukai Hydro electric power station and dam located in Ukai of songadh taluka & surat district in the state of Gujarat. 100 k.m. far from surat. It is first Hydro electric power project in Gujarat. It has got an excellent record in the field of generation. Ukai dam is located across the river tapi about 29 k.m. up steam of the kakrapar weir.

This project is the largest multi-project  under taken by the state government. The various. Utility of the project is as under.

• Irrigation purpose (Surat, Valsad & Bharuch dist.)

• Power generation (Total 305 mw)

• Flood protection (up to surat)

• Fisheries development

• Bed cultivations

• To control water in such a way that during winter and summer industrial and muncipal get water.

• Foundation ceremony of dam performed in---- November 1959

      (By late union finance minister Morarji Desai)

• Project accepted by planing----in 1961 commission.

• Dam was completed----in 1971

• Opening ceremony ----in 1972

      (By late minister smt. Indira Gandhi)

DAM HYDROLOGY :-

1. Catchment area                ---- 62225 sq.k.m.

1. Gross storage capacity     ---- 6.4 MAFT

                                              ---- 345 FRL

                                              ---- 757.523 MUS Energy available.

1. Dead storage                    ---- 0.715 MAFT

                                              ---- 270 FRL

4.  Dam length                      ---- 4926.79 Meter total

5.  Dam height                      ---- 68.58 Meter from river bed.

1. Maximum possible flood ----21.16 Lac cu sec.

1. Reservior : 120 k.m. length and 5 k.m. avarage width.

1. Total irrigation covered   ---- 9,02250 Acres.

1. Spill way      gates                     :- Nos 22

                          Types                    :-  Redial gates.

                        Size                       :-  51’ x  48.5’

                      Weight                  :-  100 tones each

                    Discharge capacity :-  49490 m/sec.(17-48 Lac cusecs).

1. Tail race canal length =1220mtr.

                        Width =30.5mtr.

1. Pen stock dia             =7.01mtr.

Thickness                  =18 to22 mm

     Length                       =60mtr

1. Pen stock gate           =4 Nos one for each pen stock  

       having 17 minutes opening time & 72 second clossing time.

1. Kakrapar distance from Hydro   =22 k.m.

1. Area covered when full of dam  =112 sq.k.m.

1. Const cost of Dam                      =108.64 crores.                    

2. (A) Hydro electric power station which is a part of multi-purpose project is being executed by the Gujarat electricity Board had Installed  four hydro units having rated capacity of 75 mw each with 15% overload. Each of four kaplan  turbine is designed and  errected  by m/s BHEL,Bhopal to give an output of 105000 MHP for maximum net head of 57.2 meter. The prime mover drives matching generator of 75mw rated  capacity. This power station has got an excellent record in the field of generation.