The hydroelectric head is increased by electrolyzing water after passing through a turbine generator. After water passes through the turbine, salt is added. Saltwater is split and H-2 rises to the top of a nearby butte where alkaline fuel cells convert H2 and oxygen from ambient air to water and electric power. Water volume is increased by converting CH4 gas to carbon black and 2H(2) which also rises to nearby butte and is converted by solid oxide fuel cells to water and electric power. Water from both sources is returned to the generator site below. The increased head, x, and increased volume produces more electric power at the upper and lower sites which reduces the cost of kWs installed. A chemical reaction of sodium hydroxide with additional water from the lower site produces HZ which is again raised to the nearby butte to fuel cell conversion.