[1][2][3] The objectives of the dam were to satisfy the medium-term requirements of Benin and Togo for power, and to provide a large water reserve, amounting to 1.7 billion cubic metres.

The power generation objective was satisfied but the fish development scheme had failed and the irrigation project was proceeding at a slower rate than expected.

[4] The Nangbeto Dam serves part of Togo's needs for electricity and is subject to interruptions in supply when the water level is low, which may happen for periods of several months.

[4] In 2017, Communauté Electrique du Bénin, the electric grid operator in Togo and Benin advertised for a company to undertake the rehabilitation of this power station which had not undergone any major overhaul since commercial commissioning in 1987.

[6] Voith Hydro, a German manufacturer and installer of hydromechanical and electricity hardware was selected to rehabilitate and modernize the two 32.5 megawatt turbines.