South Africa’s 520 MW Koruson 2 wind-solar cluster is now fully operational, supplying renewable electricity to major mining operations through the national grid.
Koruson 2, a 520 MW wind and solar cluster in South Africa, has entered full commercial operation. The project supplies renewable electricity to major mining companies through the national grid. The development adds to South Africa’s growing pipeline of large-scale wind and solar projects.
Envusa Energy developed the Koruson 2 cluster. The company is a joint venture between EDF power solutions and Anglo American. The cluster combines three renewable energy projects across the Eastern and Northern Cape provinces. Together, they have a generation capacity of 520 MW, according to Envusa Energy.
Koruson 2 combines three projects for 520 MW
The portfolio includes the 240 MW Mooi Plaats solar PV project, the 140 MW Umsobomvu wind farm and the 140 MW Hartebeesthoek wind farm.
The projects supply electricity to Valterra Platinum, Kumba Iron Ore and De Beers. The companies have signed 20-year offtake agreements with Envusa Energy. Its project information lists contracted capacities of 461 MW for Valterra Platinum, 11 MW for Kumba Iron Ore and 48 MW for De Beers.
Envusa supplies renewable electricity through Eskom’s grid
Envusa acts as the energy trading entity. It aggregates electricity from the three projects and sells it to the mining companies. Eskom’s national grid transmits the electricity to the customers. The projects do not use direct connections to individual mines.
All three projects connect to the Koruson 400 kV Main Transmission Substation. EDF power solutions developed this infrastructure as part of its Koruson 1 project cluster. The substation links the renewable generation facilities to the national transmission system.
The three Koruson 2 projects entered commercial operation during 2026. Mooi Plaats began operations in March, followed by Umsobomvu in April. Hartebeesthoek later began operations, completing the cluster’s 520 MW portfolio.
Cluster expected to avoid 2.2 million tonnes of emissions annually
Envusa Energy expects the cluster to avoid approximately 2.2 million tonnes of carbon dioxide emissions each year, according to its project information.
The project also highlights the role of private power purchase agreements in South Africa’s electricity market. Energy-intensive industries can use these long-term contracts to procure renewable electricity.
Local banks provided 85% of the project’s financing through debt, according to Power Line. Long-term offtake agreements with the mining customers support the financing structure.
Koruson 2 adds renewable generation capacity to South Africa’s electricity system. It also shows how demand from industrial customers can support large-scale wind and solar investment.
