Abstract Renewable energy is built as the future of energy value chain. In particular, solar energy is being utilized at a faster pace than ever. The problem sometimes occurs that large scale Floating Solar PV (FSPV) plants have to be developed, away from the population which adds to the cost of transmission and distribution. Floating Solar PV plants have recently gained traction as a suitable alternative of ground based large scale PV installation. FSPV, not only utilizes the water as real estate, but it has a number of other advantages. For example, FSPV could utilize the existing transmission and distribution infrastructure that is the part of hydroelectric power plant anyways. In this paper, we analyze hydro-FSPV combination on a small dam in Pakistan. Our results show that FSPV could complement the existing hydroelectric production and could provide electricity in conjunction with the existing generators of the hydroelectric plant. Furthermore, we also discuss options of integrating FSPV with the existing electrical infrastructure of Ghazi Barotha Dam.