British Solar Renewables has secured up to £130 million in financing from Eiffel Investment Group to fund the next phase of its growth, building on a £345 million project financing it completed in 2025 and backed by around 700MW of contracted solar and battery assets across the UK and Australia. The debt raise, announced on 1 July 2026, takes the form of a mezzanine facility from the French sustainable-investment specialist, providing flexible capital as the ICG-backed independent power producer advances its pipeline.
The facility is structured to meet the platform's future investment needs across the lifecycle of its projects rather than funding a single development. It is supported by roughly 700MW of highly contracted solar photovoltaic and co-located solar-plus-battery-storage assets, a mix that pairs generation with the storage increasingly needed to make variable solar useful to the grid. The projects are expected to contribute to the UK's net-zero transition by increasing the share of renewables in the generation mix.
Eiffel provided the financing as sole lender, a position the firm framed as reflecting its confidence in BSR's platform, execution and project pipeline. Mezzanine debt sits between senior debt and equity in a company's capital structure, offering more flexibility than a standard project loan, which suits a developer looking to invest across a portfolio and beyond rather than against one asset.
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The transaction reflects continued investor appetite for UK renewables. Eiffel's managing director, Jean-Charles Arrago, described the deal as support for the UK's energy transition, pointing to what he called an attractive and balanced incentive policy, and framed flexible capital for scalable platforms as strengthening European sovereignty through decarbonisation. BSR was advised by Akereos Capital and Bracewell, with Eiffel advised by TLT.
Tim Humpage, chief executive of BSR, said the financing marked an important milestone as the company scales across the UK and Australia, and that Eiffel's experience in the energy transition and confidence in the business made it a strong partner for the next phase of growth.
Source: Eiffel Investment Group
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Ankit Palan
Sustainability Content Strategist
Ankit Palan is a Canada based writer who has been writing about sustainability for the past four years. He focuses on making topics like climate change, ESG, and responsible business easier to understand and more relatable. His work looks at how sustainability plays out in the real world, across businesses, finance, and everyday decisions, without overcomplicating it.
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