About us
Mainstream Renewable Power is a leading pure-play renewable energy company, with wind and solar assets across key markets South Africa and Chile.
We are one of the most successful developers of gigawatt-scale renewables platforms across onshore wind and solar power generation. The company has successfully delivered 6.6 GW of wind and solar generation assets to financial close-ready and has a net global pipeline of 13 GW.
In 2021, Aker Horizons acquired a majority stake in Mainstream, and in 2022, Mitsui & Co., Ltd. joined Aker Horizons as a long-term strategic investor. In September 2025, Aker Horizons’ ownership stake in Mainstream was transferred to Aker Capital AS, a subsidiary of Aker ASA, as part of a group restructuring.
We have raised more than EUR 3.0 billion in project finance to date, and we have 150+ colleagues across three continents.
Intelligent Wildlife Monitoring and Preservation
Driven by stage 5 of our Global Development Standard, all Mainstream projects undertake a comprehensive assessment of the needs of the local environment in order to protect biodiversity and support wildlife preservation.
With our partners, we have developed an optical AI system that uses a collection of cameras in and around project sites to automatically track and identify wildlife. Through a system of machine learning, our teams can learn about the behaviours and variety of species in our project areas.
Thanks to this innovation, Mainstream can drive research that benefits the wider industry while also delivering a cost-effective way to manage turbine shutdowns during migrations and protect biodiversity throughout the lifecycle of our wind farms.
A global mission
We are establishing renewables as the climate and energy security solution; clearing pathways for their deployment by engagement with policymakers; developing supply chains through industry partnerships; and collaborating with communities to ensure that nobody is left behind.
The world is undergoing a once-off transition from its reliance on fossil fuels to investing and building the infrastructure for a future that is powered by renewable energy.
Our mission is to drive this transition.
Digital by design
Optimal site selection
Prioritising project sites with higher production potential, lower CAPEX/OPEX and minimizing environmental impact.
More efficient decision-making
Improving our efficiency, collaboration and quality in data driven decision making to increase our competitiveness.
Improved uptime
Highly available cloud computing platforms give operators greater visibility and longer operational service.
Reduced operating costs
AI-driven inspections and monitoring of critical systems to anticipate faults before they occur.
Preserving natural habitats
Drones, cameras, and monitoring software all play a part in continuous environmental monitoring helping to preserve natural habitats across vast areas.