The Mpumalanga Wind Farm is a $281 million renewable energy project under development in South Africa. The project recently reached financial close following the signing of a 15-year Power Purchase Agreement (PPA) between Seriti Green and the Energy Exchange of Southern Africa (EXSA).
With an installed capacity of 155 MW, the wind farm forms part of Seriti Green’s larger 900 MW Ummbila Emoyeni hybrid energy complex. It will be developed in phases across 27,000 hectares in Mpumalanga Province, incorporating a combination of wind, solar, and battery storage technologies to ensure a reliable and flexible energy supply.
The project will feature 25 wind turbines and is expected to generate approximately 525 GWh of clean electricity annually once fully operational. Construction is advancing steadily, with electricity generation expected to commence soon and project completion scheduled for October 2027.
Located in a region traditionally dominated by coal mining and coal-fired power generation, the Mpumalanga Wind Farm symbolizes South Africa’s shift toward cleaner, more sustainable energy sources. Once complete, it will play a vital role in reducing the country’s reliance on coal while promoting environmentally responsible development and long-term energy security.
On 10th October EXSA also partnered with Sustainable Power Solutions (SPS) on the SlimSun Too Solar IPP project located in Malmesbury in the Western Cape in creasing its portfolio of renewable projects on ts books.
The 155 MW project will incorporate 25 wind turbines and will produce some 525 GWh yearly once in full production. It is expected to begin generating electricity soon, with completion scheduled for October 2027. The location of the project is in a part of the country currently regarded as the epicenter of coal mining and coal-fired power generation. However, once complete, the project will promote eco-friendly approaches that replace the environmentally degrading use of coal.
Once completed it will rank as one of the 10 top wind farms in Suth Africa.
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Scope of Implementation on the Mpumalanga Wind Farm
The scope of implementation on the Mpumalanga wind farm hopes to provide alternate sources of energy other than coal. EXSA will procure the electricity generated by the wind farm through the PPA with Seriti Green. Once done, it will be distributed through wheeled distribution to its portfolio of customers. These include South African corporates, industrial facilities, among others. EXSA CEO Wayne Cowie noted that the achievement of a financial close on the project was monumental. He noted that it was a positive step forward for the South African renewable energy market.

Furthermore, he noted that this demonstrated the private sector’s role in solving the South African energy supply gap. It also shows development in the company’s commercial and industrial portfolio. “Working with EXSA, allows us to expand our footprint in Mpumalanga,” noted Seriti Green CEO Peter Venn. “Supporting the electricity trading market drives generation growth which is excellent for the economy, social development and the just energy transition,” he added.
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