[1] Gembu is approximately 413 kilometres (257 mi), by road, southeast of Wukari, the nearest large town, all in Taraba State.

The first preliminary feasibility study for the Mambilla Hydropower Plant was reportedly carried out by Moto Columbus in 1972, but attempts to construct the power station up to now have been unsuccessful.

The Federal Government of Nigeria has committed to contribute 15 percent (US$870 million) of the construction costs.

[4] However, due to various constraints, including landslides,[4] and a lawsuit at the International Court of Arbitration, the project stalled again.

[5] Construction is expected to take at least seven years from start to finish, due to the technical complexity of the project.