Recovery of methane from used water from the Ouagadougou municipal purification station. 72,784,000. Recovery of methane from the solid wastes of the Ouagadougou municipal industrial landfill. 8,444,000. A. Electrical energy production. Small hydroelectric plants (Bontioli, 5.1 MW; Gongouro, 5 MW; and Folonzo, 10,8 MW) in public-private partnership. 109,166,667. Solar. 163,666,667.