Swedish startup Green Voltis raises €13.5 million to turn battery storage into flexible grid assets
Stockholm-based energy technology company Green Voltis has raised €13.5 million in a Series A round led solely by Lochpine Capital. The company builds AI-powered route-to-market optimisation technology for battery storage and renewable energy assets, helping operators handle grid connections, control their systems and trade electricity across European power markets. It has more than 1.2 GWh of capacity under contract and in operation, and has market access established or under development in 10 European countries.
Two products sit at the core of the platform. Aether AI is a trading agent that uses time-series foundation models to forecast electricity prices and coordinate trading across several markets, rather than committing a battery to just one. Chronos is an energy management system that controls on-site operations, supports grid-code compliance and enables grid-forming functionality. The company also handles grid connection, hot commissioning, prequalification for ancillary services and market access, and offers revenue sharing, tolling agreements and revenue floors meant to give asset owners more predictable income and support project financing. Green Voltis says the batteries it manages have consistently outperformed the Clean Horizon index, an independent benchmark for battery storage revenues.
The funding will go toward further development of Aether AI and Chronos, expansion in key European markets, and a new Power-to-Compute business. That business aims to develop data centre sites as flexible energy assets that can respond to grid conditions. The company points out that grid connections in some of Europe's main data centre hubs can take an estimated seven to ten years, and that regulators in countries such as Ireland and Finland increasingly require new data centres to offer grid flexibility. It has identified a pipeline of about 120 MW of powered land in the Nordics and plans to develop it with compute operators.
The round comes as Europe's battery storage capacity grows and electricity markets become more complex, with prices changing every 15 minutes across day-ahead, intraday and balancing markets. CEO and co-founder Martin Kievit says the same intelligence that runs a battery can manage a data centre's energy. Lochpine's Blake Niu says grid connection and power trading are among the scarcest capabilities in Europe's energy transition.