The dam, on the Blue Nile near the Sudan border, began producing power in 2022. The project is expected to ultimately produce over 6,000 megawatts of electricity, which is double Ethiopia’s current output and enough to make the East African nation of 120 million a net energy exporter.

Ethiopia says it has completed building a mega-dam on the Blue Nile that has long been a source of tension with Egypt and Sudan. Launched in 2011 with a $4bn (£2.9bn) budget, the dam is Africa's biggest hydro-electric plant,