Kalpsar : A kayakalp project Biggest Tidal project in the world envisaged S R Awasthi
Tidal power is dependent on the tides created by the moon’s gravitational pull on earth
Potential : Places with highest tidal range gulf of Kutch in India
Gujarat : Gulf of Khambhat
Gulf of Khambhat
Gulf of Khambhat
Why a kayakalp project ? fresh water reservoir = 2000 km2 12 rivers including Narmada, Mahi, Sabarmati, Dadhar Dam = 64.16 km long and 35 m wide Tidal power plant = 5,880 MW by installing bulb turbines of 40 MW each. Highway multi-lane & a railway line across Gulf of Khambhat connecting Ghogha in Bhavnagar district in Saurashtra with Hansot in Bharuch District in South Gujarat, reducing distance by about 225 km. Reclamation of land = 4 Lac hectares of saline will be replaced by fresh water.
Modified plan A new location under investigation reduing dam length to 29 kms Estimation project cost reduction from Rs. 50000 Cr to Rs. 30000 Cr. Execution : start = 2012 completion = 2020
Types of Tidal Power Generation Barrages Tidal Streams
Tidal Barrage Turbines Sluice gates Embankments
Bulb Turbine
Straflo or Rim Generator Turbine
Tubular Turbine
Tidal streams Instead of damming estuaries the tidal currents are harnessed using wind like turbines
Main methods of current generation Marine current generator Stingray Tidal fence