Stem’s PowerTrack EMS Secures 100 MWh Utility-Scale Storage Deals in Germany
Event summary
- Stem’s PowerTrack EMS selected for two utility-scale BESS projects in Germany: a 90 MWh installation in Kölsa and a 10 MWh installation in Elsterwerda.
- Projects owned and financed by UESA Group, with Everyray GmbH as developer and EPC partner.
- PowerTrack EMS to serve as primary control and management platform, certified under VDE-AR-N 4110, 4120, and 4130 standards.
- Commercial operations expected to commence in summer 2026.
The big picture
Stem’s selection for these projects underscores the growing demand for scalable, vendor-neutral control architecture in Europe’s maturing storage market. The deal highlights the strategic importance of AI-enabled energy management systems in optimizing utility-scale battery storage, particularly as Germany and other European countries increasingly rely on flexible capacity to support their renewable energy transitions.
What we're watching
- Market Expansion
- How Stem will leverage this deal to further penetrate the European utility-scale storage market.
- Technical Integration
- Whether PowerTrack EMS can maintain seamless interoperability with diverse optimization platforms and grid infrastructure.
- Regulatory Compliance
- The pace at which Stem can adapt PowerTrack EMS to evolving grid code requirements across different regions.