Investigations and Development of Small Hydropower Project in Gujarat – A Case Study

Abstract

Small hydropower projects can provide a solution for the energy problems in rural, remote and hilly areas as well as along the canal systems, where extension of grid in unfavorable. There exist a potential of around 187 MW in 287 projects in different parts of the Gujarat state, of which only 7 MW has been tapped so far. Efforts shall be made to harness the balance potential by setting up small hydropower projects based on river/canal/dam through private/state/joint sector participation. In the present study, the small hydro scenario in India and Gujarat has been reviewed. The power potential available at the Nadiad branch canal in Gujarat State has been evaluated. The canal has a design discharge of 85 m3/s and there exists a fall of 2.47 m at a chainage of 33,800 m on it. It has been estimated that there exist a potential of 800 kW at this site and a small hydropower project can be installed on the left bank of the canal. Various civil and hydro-mechanical components have been designed and cost estimation has been carried out. Based on the study it is found that the development of this site is techno-economically feasible considering government subsidy and clean development mechanism benefit available for such projects.