Asset manager MEAG and a subsidiary of inverter specialist SMA have partnered to deploy a 130MW/354MWh BESS in Germany, their second together and one which will deploy ‘next-generation’ inverters.
The 2.7-hour duration ready-to-build Hoexter battery energy storage system (BESS) project has a grid connection date of 2027, the companies said.
It is their second project they’ve worked on, following the 92.5MW/231MWh Metelen project. Both are in North Rhine-Westphalia, the most populous state in Germany.
Hoexter was developed in-house by SMA Solar Technology AG subsidary SMA Altenso, which does renewables project development, system integration and construction. SMA Altenso will deliver a turnkey solution for Hoexter of development, construction, and maintenance, as it is doing with Metelen.
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Optimiser Entrix will trade the Metelen project in Germany’s energy and ancillary service markets, an announcement that coincided with the inaugural Energy Storage Summit Germany 2025, held in June by our publisher Solar Media in Stuttgart. That project should come online before the end of the year.
“Battery energy storage systems are essential for bridging supply gaps during periods of low renewable generation and in facilitating the greater integration of renewable energy into the grid. With the projects in Hoexter and Metelen, we are laying the foundation for our battery storage platform in Europe.” said Dominik Damaschke, head of illiquid assets equity at MEAG.
The Hoexter project will be among the first to use SMA’s ‘next-generation’ SMA Sunny Central Storage UP-S inverters, which incorporate silicon carbide (SiC) MOSFET technology. That means outstanding energy conversion efficiency, low acoustic emissions, and advanced operational lifetime, SMA claimed.
Smaller projects launched in Germany by Bayernwerk, Green Flexibility
The news coincides with other companies launching construction on smaller grid-scale projects in Germany.
System integrator Intilion has been contracted by utility Baternwerk Natur to provide a 15MW/30MWh BESS for a project in Pfaffenhofen, Bavaria, southern Germany. The pair have already worked on projects together in Germany, as reported by Energy-Storage.news.
BESS developer-operator Green Flexibility meanwhile will build a 2.5-hour, 10MW/25MWh BESS in Krumbach, also in Bavaira, with an investment of around €10 million (US$11.6 million). It will be deployed in a ‘grid-neutral’ way, Green Flexibility said. Energy-Storage.news interviewed CEO Christoph Ostermann for ESN Premium earlier this year.
