Green Voltis raises €13.5 million to trade battery storage with its Aether AI agent

Green Voltis, a Stockholm route-to-market optimiser that uses AI to operate and trade battery storage across European power markets, said on Thursday, Nov. 5, 2026, that it raised €13.5 million in a Series A with Lochpine Capital as the sole investor.

Batteries that sit idle lose money every 15 minutes. Green Voltis is selling the AI layer that commissions, forms the grid and stacks markets — and is already pointing that same agent at the AI data-center power shortage. €13.5 million from one energy-transition PE shop is a bet that the scarce skill in Europe is not building batteries, it is making them bankable.

Green Voltis raised €13.5 million in a Series A with Lochpine Capital as the sole investor. Sole investor means one fund wrote the whole check. A Series A is an early venture round once a company has a product in market. Private equity, the business Lochpine is in, is a fund that buys a stake in companies rather than only trading their shares on an exchange. Those lines are the company's, in its Stockholm announcement.

The Stockholm company is a route-to-market optimiser for standalone battery storage and for projects that pair renewables with storage on the same site. Route to market, here, means taking a battery from built to earning money in power markets. Green Voltis says it has more than 1.2 gigawatt-hours under contract and in operation. A gigawatt-hour is a measure of how much electricity a battery can hold. It says market access is in place or underway in 10 European countries. Those lines are the company's.

Chronos is an energy management system designed in Sweden. It controls the site, is certified against grid codes, and supports grid-forming operation. Grid codes are the technical rules a power grid sets for anything that connects to it. Grid-forming means the battery can help set the grid's voltage and frequency, not only follow them. Aether AI is a trading agent built on time-series foundation models. A time-series model reads a sequence of numbers over time. Here it forecasts prices and stacks revenue and capacity across the day-ahead market, the intraday market, and the balancing market, instead of locking a battery to one market at a time. Day-ahead is power for tomorrow. Intraday is the same day. Balancing is the market that keeps supply and demand matched as the day runs. Stacking means earning from more than one of those markets with the same battery. Those lines are the company's.

Green Voltis also offers commercial structures it calls bankable: revenue sharing, tolling, and revenue floors. Revenue sharing splits the earnings. Tolling is a contract where someone pays to use the battery. A revenue floor is a minimum payment if the markets pay less. The company says assets it manages have consistently outperformed the Clean Horizon index, an independent benchmark of battery storage revenues. That comparison is the company's.

Power-to-Compute applies the same stack to AI infrastructure. The aim is to run data-center sites as flexible assets the grid can work with. Green Voltis says it has a pipeline of around 120 megawatts of powered land in the Nordics, and that it will partner with compute operators. A megawatt is a measure of power. A pipeline is work lined up, not a count of data centers already switched on. The money goes to more research and development on Aether AI and Chronos, growth in key European markets, and building out Power-to-Compute. Those lines are the company's.

Martin Kievit is chief executive and co-founder. Team backgrounds the company cites include Ericsson, T-Mobile, Rolls-Royce, Brady, and Varberg Energi. Kievit said: "Every new gigawatt of renewables makes Europe's grid harder to balance, and flexibility now sets the pace of the energy transition. ... The next wave of demand comes from AI. Data centres need power faster than grids can deliver it, and the intelligence that operates a battery can also manage a data centre's energy." Blake Niu, partner and head of private equity at Lochpine Capital, said: "As renewables take a larger share of the energy mix, grid connection and power trading are becoming key to the value of energy assets, and they are among the scarcest capabilities in Europe's energy transition." Those quotations are theirs.

The picture is the Green Voltis team standing together in front of the company logo wall. The credit is EU-Startups / Green Voltis.

In plain terms, a Stockholm company that operates and trades battery storage across European power markets raised €13.5 million from one investor, Lochpine Capital. The software both runs the battery on the grid and shops it across several power markets. The company is also lining up about 120 megawatts of powered land in the Nordics for AI data centers. That land is a pipeline.