Energy access in global challenge faced by more than 1 billion people. Pakistan, to address the challenge, has developed an access strategy of decentralized energy system. In northern hilly areas of the country, Hydel resource has been tapped through mini-micro hydro projects. However, the sites are remotes located in hilly terrain, making transportation of machinery a challenging task increasing initial cost. Similarly, loss of heat caused by slope in water channels and laborious construction of concrete channel in rigid and sharp rocks further aggravates the situation.