Terra One secures €150m mezzanine funding from Aviva Investors to accelerate the energy transition

September 17, 2025

BERLIN, Germany — At Terra One, we are proud to announce a real milestone: We have secured mezzanine financing of up to 150 million euros from global asset manager Aviva Investors. This is a massive vote of confidence in our vision and gives us the power to invest up to 750 million euros in new battery storage projects. With this capital, we can build up around 3 GWh of storage capacity — enough to supply almost 20% of German households with electricity for one hour.

Financing is about more than just numbers. It is a strong signal that an experienced infrastructure investor such as Aviva Investors believes in our mission to build the necessary infrastructure to stabilize the European power grid.

As Europe heads towards a sustainable energy future, grid stability and flexibility are becoming increasingly important. Renewable energy sources such as solar and wind are crucial, but their unpredictability requires smart solutions to balance supply and demand. That's where large-scale battery storage comes in — it's the key to making our grid more resilient and ensuring that clean, affordable power is available 24/7.

“This financing is a milestone for Terra One and for the energy revolution in Europe,” says our Founder & CEO Tony Schumacher. “With such a top-class infrastructure investor as Aviva at our side, we can massively accelerate the expansion of large storage facilities. This hybrid financing structure gives us the flexibility and scalability we need to establish ourselves as a top player in the independent storage market. ”

Adam Irwin, Director of Infrastructure Equity at Aviva Investors, shares our enthusiasm: “We invest in Terra One because the company has proven that it can deliver projects quickly, reliably and at the highest level. Together, we want to take the European storage market to the next level. ”

With the new funding behind us, we are ready to go straight into implementing a series of “ready-to-build” projects. This success is a testament to the dedication of our incredible team and the support of our partners, including Elgar Middleton Infrastructure & Energy Finance LLP and Hogan Lovells. Together, we are building tomorrow's energy infrastructure.

A big thank you to everyone who accompanied this process. We're looking forward to everything that's ahead of us!

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September 17, 2025
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Julia Krzystek
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