The signing of power purchase agreements for the 27 mostly solar and wind projects was held up for over two years under ousted president Jacob Zuma, who favored a plan to build additional nuclear power plants.
It was also the subject of a last-minute legal challenge by the NUMSA labor union and Transform RSA lobby group, but a court rejected their application for an urgent interdict last week.
The signing represents a victory for Ramaphosa, who has promised to unlock investment and kick-start economic growth since replacing scandal-plagued Zuma in February.
“This will bring much-needed policy and regulatory certainty and maintain South Africa’s position as an energy investment destination of choice,” the energy ministry said in a statement.
Ramaphosa, a wealthy businessman, has prioritized revamping the economy and turning around struggling state-owned enterprises like utility Eskom, which will purchase power from independent producers as part of the deals agreed on Wednesday.
Opponents of the renewable contracts argued that Eskom could not afford the additional financial burden and that they would lead to job losses in the coal sector.