Overview of funding programs for balcony power plants | 2025

*Funding data as of March 20, 2025

Harvest the sun's energy and save money

We're glad you're interested in purchasing a balcony power plant, whether you want to contribute to climate protection or simply save on electricity costs. To accelerate the energy transition from fossil fuels to renewable energies, some cities and federal states are promoting the purchase of balcony power plants.

Please note that funding programs vary and are subject to change. It is therefore advisable to check the current terms and conditions on the respective websites.

City/Country Funding amount Website with more information
Berlin Up to 500 euros (just stopped) Investment Bank Berlin (IBB)
Mecklenburg-Western Pomerania Up to 500 euros for tenants (application after purchase and installation) State Promotion Institute Mecklenburg-Western Pomerania
Saxony 300 euros for tenants (currently not available) Saxon Development Bank
Ahaus 50% of the purchase price, maximum 200 euros City of Ahaus
augsburg Flat rate of 100 euros for systems with at least 350 watt peak (Wp) (application required before purchase) Solar Offensive Augsburg
Böblingen Up to 200 euros (maximum 50% of the purchase price); with Bonus Pass up to 600 euros City of Böblingen
Bonn Owners: €300 per kWp (max. €240); Tenants: €600 per kWp (max. €480) City of Bonn
Darmstadt One module (200–450 W): €200; two modules (450 W and above): €400 (max. 50% of the purchase price) City of Darmstadt
Filderstadt Flat rate of 150 euros per household (application after installation) City of Filderstadt
Frankfurt am Main 50% of the purchase price; with Frankfurt Pass 75% of the eligible costs City of Frankfurt
Freiburg Flat rate of 150 euros (only for tenants) City of Freiburg
Gelsenkirchen Systems up to 400 W: 100 euros; 400–800 W: 200 euros (from January 1, 2025) City of Gelsenkirchen
Göttingen Flat rate of 180 euros for tenants (application required before purchase) City of Göttingen
Heidelberg 50% of the purchase price, up to 200 euros; with Heidelberg Pass up to 400 euros City of Heidelberg
Hiddenhausen Flat rate 100 euros; with power storage 300 euros Municipality of Hiddenhausen
kassel 150 euros; for low-income households up to 500 euros (apply online before purchase) City of Kassel
Leipzig Up to 500 euros for Leipzig Pass holders (application required before purchase) City of Leipzig
Lörrach Flat rate 100 euros City of Lörrach
trier Flat rate of 200 euros (application after commissioning) City of Trier
Ulm 50% of the purchase price, max. 150 euros per residential unit City of Ulm
Unterschleissheim 25% of the purchase price, max. 200 euros (application up to three months after commissioning) City of Unterschleissheim
Urmitz 100 euros per module, max. 200 euros for two modules Municipality of Urmitz

 

Please note that this list is not exhaustive and funding conditions are subject to change. Before purchasing a balcony power plant, we recommend researching current funding options with your city, municipality, or state.

You are not entitled to funding?

Even if you're not eligible for subsidies, purchasing a balcony power plant is usually worthwhile. Depending on the module, you can save several hundred euros in electricity costs per year. This means the balcony power plant pays for itself.

You'll usually recoup the initial investment in 3-6 years. With a 20-25-year performance guarantee, balcony power plants offer enormous savings potential. At the same time, you'll become less dependent on the power grid by producing your own green electricity.