The Mpumalanga wind farm in South Africa has progressed from construction into commercial operation. It’s part of Seriti Green’s 900MW Ummbila Emoyeni renewable energy complex.
On 31 July 2026, the project’s first phase with a combined capacity of 155MW, officially began commercial operation.This is after completing the required grid connection tests.
By September 2026, Phases 2 and 3, which add another 310MW, remained under construction. They were expected to be completed by November 2027.
The wider complex is to combine approximately 750MW of wind generation, 150MW of solar PV and 800MWh of battery storage. The Vunumoya main transmission substation will support it, which was completed and handed over to Eskom in November 2025.
Seriti Green has committed approximately R25 billion to its Mpumalanga renewable energy programme.This aims to diversify the province’s coal-based energy economy and supply electricity to industrial customers.
The Mpumalanga Wind Farm’s move to commercial operation marks a key milestone for Seriti Green. It will expand renewable electricity generation in South Africa’s coal-producing region.Similarly, the Koruson 2 Wind and Solar Project has reached full commercial operation, adding 520 MW of renewable energy to South Africa’s national grid.
The project will diversify energy supply, reduce carbon emissions and create jobs for local workers and businesses.
Meanwhile, construction continues on the remaining phases of the Ummbila Emoyeni complex. Therefore, timely completion of the wind farms, solar installations, battery storage and grid infrastructure will be essential to deliver the planned 900 MW capacity.
A Look at the $281 Million 155MW Mpumalanga Wind Farm in South Africa
Reported November 17,2025 – 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.The project incorporates a combination of wind, solar, and battery storage technologies to ensure a reliable and flexible energy supply.
The project will feature 25 wind turbines. It’s 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.
Renewable Energy Investment Supports South Africa’s Energy Transition
The project is located in a region traditionally dominated by coal mining and coal-fired power generation. Therefore ,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 .Also,it will promote 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. The solar project is located in Malmesbury in the Western Cape. This is also intended to increase its portfolio of renewable projects on its books.
Mpumalanga Wind Farm in South Africa: Project Outline and Outlook
The 155 MW project will incorporate 25 wind turbines producing 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 South Africa. In addition to Mpumalanga wind farm, Eskom is at the forefront in promoting other renewable energy projects. This is as Africa’s second nuclear power plant comes closer to fruition. South Africa’s government has noted its plans to move forward with plans to building Africa’s second nuclear plant and revive its modular nuclear reactor program. The project is part of a broader push to secure long-term energy stability. The insight was noted by Electricity Minister Kgosientsho Ramakgopa. The new plant, to be built in Duynefontein near Cape Town, will add four gigawatts of nuclear capacity initially. South Africa’s plans for Africa’s second nuclear power plant, at Duynefontein near Cape Town, are still alive. The proposed project, with a planned capacity of 4,000 MW, aims to diversify the country’s electricity generation mix.
Also read:
Construction of South Africa’s largest wind farm, Mpumalanga wind farm, to commence soon
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 customers. These include South African corporates, industrial facilities, among others.
Also read: 53 Gigawatts of Wind Energy Projects in South Africa’s Development Pipeline
Also read: Construction of God’s Window Skywalk in Mpumalanga, South Africa, in the offing
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