April 23, 2026
Polarium deploys and manages distributed batteries. Image: Polarium.
Power firm RWE has partnered with distributed battery storage firm Polarium for a battery-based virtual power plant (VPP) in Germany.
Starting later this year, RWE will optimise the dispatch of at least 50MW/135MWh of battery storage capacity from the distributed portfolio of Polarium, a Sweden-headquartered systems manufacturer and solutions provider.
It will initially use 1,600 distributed batteries aggregated via Polarium’s cloud platform, but the firm has long-term plans to increase that to 10,000, a capacity of 300MW/810MWh. It implies an average battery size of c.30kw/80kWh, meaning these are likely to be commercial & industrial-sited rather than residential batteries.
