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Sigenergy has outlined its shift beyond residential energy storage into C&I and utility-scale applications, using a German solar-plus-storage project as its reference case for the strategy. The company hosted Sigenergy Day Europe 2026 in Stuttgart, drawing close to 400 investors, EPCs, distributors and partners.
The flagship project, in Weissach im Tal in Baden-Württemberg, combines 11.6 MWp of solar generation with roughly 20 MWh of battery storage. Owned by Deutsche Gesellschaft für Sachwertanlagen (DGS) GmbH, developed by PV specialist Arausol and supported by European distributor Memodo, it entered commercial operation in early August 2026. The site deploys 1,660 battery modules of 12 kWh each, alongside 80 Sigen C&I PV inverters of 100 kW.
The company’s SigenStack product is a modular BESS aimed at commercial sites, with stackable 12 kWh modules and automatic device networking to simplify site selection and commissioning. Sigenergy is positioning the unit around compact footprint and pack-level safety management for solar-plus-storage projects.
The pivot matters because it mirrors a broader industry trend: several manufacturers that built their brand in residential storage are now pushing into the higher-margin C&I and grid-scale tiers as European home-battery demand softens.
