Terra One, a Berlin-based developer of grid-scale battery storage systems, has secured €150 million in mezzanine financing from Aviva Investors. Combined with equity and project financing, the investment will support up to €750 million in new storage assets, enabling the company to deploy roughly 3 GWh of capacity—enough to meet the electricity needs of about 20 percent of German households for one hour. Germany has approximately 41 million households as of 2024/2025.
Founded in 2022, Terra One focuses on developing, financing, and operating large-scale battery installations that enhance grid flexibility and support the growing share of renewable energy. The company’s proprietary machine-learning trading platform autonomously optimises each asset’s performance across wholesale and ancillary markets, helping to secure affordable and sustainable power throughout Europe.
“This financing is a milestone for Terra One and for the energy transition in Europe,” said Tony Schumacher, Founder and CEO of Terra One. “With Aviva Investors at our side, we can accelerate the expansion of large-scale battery storage significantly. In doing so, we are making a decisive contribution to security of supply and making Europe’s energy system more independent and resilient. At the same time, the hybrid financing structure gives us the flexibility and scalability we need to establish Terra One as one of the leading independent storage developers in Europe.”
“Energy storage is the backbone of a carbon-neutral future,” added Adam Irwin, Director Infrastructure Equity at Aviva Investors. “We are investing in Terra One because the company has proven its ability to deliver projects quickly, reliably, and to the highest standards. Together, we aim to take the European storage market to the next level and accelerate the transformation of Europe’s energy systems.”
As electricity grids face rising volatility and the challenge of integrating intermittent renewables, large-scale battery systems are becoming increasingly critical. Terra One’s combination of project expertise, innovative financing structures, and AI-driven trading capabilities positions the company as a trusted partner for grid operators, financial institutions, and investors in a rapidly expanding market.
Source: EU-Startups
