VREY

VREY provides metering operation (Messstellenbetrieb), billing and payment processing for solar electricity sold to tenants in multi-family buildings under the GGV and Mieterstrom models. It runs a smart-meter setup per apartment, billing software, and a planned energy management platform.

Customers include landlords, condominium owners' associations (WEGs), housing companies, housing cooperatives, project developers, installers and institutional property holders. The company's website describes revenue from recurring billing and payment services for these building owners.

VREY was founded in 2024 and is headquartered in Berlin, Germany; its legal entity is RE Joule GmbH. The careers page lists 30+ team members and a current opening count of 34 roles, mainly in energy operations, growth and founders' office.

Product: Smart-meter operation, tenant solar billing and payment collection for GGV and Mieterstrom in multi-family buildings.