A consortium of Abu Dhabi's Masdar and Egypt's Infinity Energy is set to buy a majority stake in Lekela Power from private equity house Actis, 3 sources directly linked to the sale said, in a deal that could be worth close to $1 billion.

The sale, which would be one of southern Africa's biggest renewable energy deals, has attracted interest from across the world, including from Chinese state fund CNIC; Africa-focused power firm Globeleq, which is 70% owned by UK development finance institution CDC Group; Chinese petroleum giant Sinopec; and South African coal firm Exxaro, among others.

The deal would give Masdar, owned by United Arab Emirates' sovereign investment company Mubadala, its first foothold in southern Africa, expected by analysts and bankers to be the next major hub of renewables development after Asia considering the many hours of sunlight, even during winter.

Masdar has so far largely been present in the Middle East, but had been looking more broadly for greenfield and brownfield acquisition opportunities, the first source said.

Actis, Masdar, and Infinity Energy did not immediately respond to emails seeking comment.

"The deal is almost finalised but a lot of regulatory approvals are still ahead," said one of the sources.

Considering Lekela's portfolio of over 1,000 MW of wind assets spread across South Africa, Egypt and Senegal and a 225 MW wind development in Ghana, the deal size could be between $900 million and $1 billion, a third source - also directly linked to the sale - said.