The Batoka Gorge dam will be situated 50 kilometers (30 miles) downstream of the Victoria Falls with a designed capacity of 2,400 megawatts shared between the two countries.

The Zambezi River Authority (ZRA), which is jointly run by Zambia and Zimbabwe, said feasibility studies were almost complete and a developer would be signed up by the end of this year.

“The developer is expected to commence works in the last quarter of 2020,” Munyaradzi Munodawafa, chief executive of the ZRA, said in a statement.

The ZRA said the project would have “minimal impacts” on local people as the reservoir behind the dam wall would be contained within the gorge.

Studies are underway to mitigate environmental damage, it said.

Zambia has said the project will be built on a “build-operate-transfer” funding model that would not put fiscal strain on the two impoverished countries.

The country's energy minister, Matthew Nkhuwa, said this week that a bidder had yet to be chosen to build for the project.

According to Bloomberg News, Zimbabwean President Emmerson Mnangagwa said last month that General Electric of the US and Power Construction Corporation of China had been selected.

As well as the dam, roads, transmission infrastructure and housing would also be built.

Zimbabwe suffers regular power cuts of 19 hours a day, while Zambia has shorter outages.

The two countries already run the massive Kariba hydropower dam further upstream on the Zambezi river, although it is operating below capacity due to a drought.