ALVA Energie
Solar operator models for residential and commercial properties.
| Date | Investors | Amount | Round |
|---|---|---|---|
* | €5.2m | Early VC | |
| Total Funding | 000k | ||
ALVA Energie, founded in 2024, is a Berlin-based energy company specializing in decentralized solar energy solutions for the real estate sector. The founding partners are Cecil von Croy, Alexis Cramm, Marc Schuhbauer, Franziskus Cramm, and Marian Hallal. The company provides 360-degree service for solar operator models on multi-family residential buildings and commercial properties across Germany.
The company's core business revolves around the German "Mieterstrom" or tenant electricity model, where electricity is generated by solar photovoltaic (PV) systems on a building's roof and supplied directly to the tenants and commercial users within that property or district. This approach addresses the landlord-tenant dilemma by creating financial incentives for property owners to invest in renewable energy while offering tenants lower energy costs. ALVA Energie manages the entire process, including consulting, planning, financing, installation, and the long-term operation of the energy systems, which can also integrate heat pumps and electric vehicle charging infrastructure. By acting as the energy supplier, ALVA simplifies the process for property owners and tenants.
ALVA Energie's business model is vertically integrated, allowing it to handle all key steps in-house. It offers flexible arrangements for property owners, including roof leases, system leases, and operator models. For tenants, the company provides locally produced green electricity directly, partly under its "KARLSSONN" brand. The company serves private property owners, larger real estate companies, and investment funds. In July 2025, ALVA Energie successfully closed its first funding round, securing over €5 million from investors including Triodos Bank, Württembergische Energie GmbH, and Brandenburg Kapital GmbH to scale its operations. Since its founding, the company has completed over 50 projects and aims to double this number by the end of 2025.
Keywords: tenant electricity, Mieterstrom, solar operator models, decentralized energy, renewable energy, commercial real estate, residential real estate, solar PV, energy services, property technology, energy transition, clean energy, ESG, building decarbonization, solar financing, energy management, photovoltaic systems, green electricity, energy supply, real estate sustainability