stroya

stroya plans, builds and operates rooftop solar systems that supply electricity directly to tenants in multi-family buildings (Mieterstrom). The offering covers a potential analysis, legal and economic review, PV installation, metering concept, commissioning, tenant acquisition, and ongoing operation with billing under the German EnWG.

Customers are property owners and landlords of multi-family houses, who earn additional rental-type revenue from selling solar power to tenants. The company describes its service as end-to-end, with an initial potential analysis offered free of charge; pricing and revenue details beyond that are not stated on the website.

The company says it was founded in 2022 and started regionally in Haselünne, and has offered its service nationwide since 2026. Its management is listed as two managing directors, Roman Ginzburg and Arne Reuter. It states it works in cooperation with the Volksbanken Raiffeisenbanken cooperative financial group. An open working-student position in operations and process management is listed in Hamburg.

Product: Tenant electricity service for multi-family buildings: solar planning, PV installation, metering, tenant acquisition, billing and operation.