Stockholm start-up Green Voltis has raised a €13.5m Series A from Lochpine Capital to expand its AI software for managing and trading battery storage in Europe.
Green Voltis, a Stockholm-based battery storage optimisation company, has closed a €13.5m Series A round. Lochpine Capital was the sole investor. The start-up uses artificial intelligence to manage and trade battery assets across European power markets.
It will spend the money on research, expansion into key European markets and a new data centre power business. Chief executive Martin Kievit founded the company in 2024 with Ali Shi and Gino Zhang. It now has more than 1.2GWh of battery storage under contract and in operation. It also has market access in place or under way in 10 European countries.
Software for the whole asset life
Battery storage optimisation is the work of deciding when a battery charges, discharges or holds capacity back. Owners can sell into wholesale markets and into grid balancing services. Choosing between them in real time decides much of the revenue.
Green Voltis covers a project from grid connection through commissioning to daily trading. Its engineering team handles the initial set-up and grid approvals. After that, two in-house tools run the asset.
Chronos is an energy management system that controls battery sites and meets grid requirements. It also supports grid-forming operation, where batteries help hold grid voltage and frequency steady. Aether AI, meanwhile, is a trading agent that forecasts electricity prices and spreads a battery’s capacity across several markets.
Green Voltis built the two tools to replace manual trading and the patchwork of separate control systems many owners still use. The company argues that one automated system can do the work of several.
The company says assets under its management have outperformed the Clean Horizon index, an independent benchmark of battery storage revenues. It didn’t give the size of that margin.
Why revenues are harder to predict
Europe’s battery fleet is growing fast, while grid connections are slower and harder to secure. New grid rules and volatile power prices also make revenues less predictable. In turn, projects become harder to finance, the company says.
Revenue stacking has become normal for European batteries. A single asset might earn from price arbitrage, frequency response and capacity payments in the same week. Each market has its own rules, deadlines and bidding formats, so software that works across them is in demand.
“Flexibility now sets the pace of the energy transition,” said Martin Kievit, chief executive and co-founder of Green Voltis. Blake Niu is a partner and head of private equity at Lochpine Capital. He said grid connection and power trading are becoming key to the value of energy assets. He called those skills some of the scarcest in Europe’s transition.
Smaller rivals are raising money too. For instance, CIOC Energy recently secured €3m for solar and battery optimisation software. As fleets grow, owners are leaning more on specialists to run them.
A move into data centre power
The third use of the funds is a business called Power-to-Compute. It pairs grid capacity with sites for data centres, which need large and reliable connections. Grid queues in established data centre hubs are long, so powered land has become a scarce asset. Green Voltis has about 120MW of powered land in the Nordics and plans to develop it with compute operators.
The company says these sites can offer flexible energy capacity and help operators get power sooner. For a battery storage optimisation firm, the step builds on skills it already has. Connection, control and trading are the same problems data centre developers face. A battery on site could also cover short gaps in supply while larger grid upgrades are under way.
Still, the business is at an early stage. The Nordics already draw operators with cool weather and plentiful renewable power. The unit’s progress will depend on how quickly the Green Voltis sites move into development.
