Funding 2025: How to secure subsidies for your solar system & wallbox

Funding 2025: How to secure subsidies for your solar system & wallbox

The federal government and various funding agencies are offering attractive subsidies for solar systems, battery storage, and wall boxes in 2025. We'll show you which programs are currently relevant, how to apply for the subsidies, and what requirements you must meet.

1. Funding programs for solar systems

The Federal Office for Economic Affairs and Export Control (BAFA) and KfW support the expansion of renewable energies with grants and low-interest loans. Particularly popular are:

  • KfW 270 – Renewable Energy Storage: Subsidies for battery storage in combination with PV systems
  • BAFA – Subsidies for solar power storage: Funding for storage systems to optimize self-consumption
  • Regional funding: Some federal states and municipalities offer their own programs

2. Promotion of wallboxes

The following subsidies are available for private charging infrastructure in 2025:

  • KfW grant 441: Up to €900 for wallbox installation at home
  • Network fee exemption: Savings on electricity network fees for smart charging points

3. How do you apply for funding?

  1. Find out about current programs early
  2. Choose an eligible product and have it professionally installed
  3. Submit the application to the relevant authority in good time before or after the purchase
  4. Keep all invoices and receipts for processing

4. Tips for maximum support

  • Combine PV system with battery storage and wallbox
  • Make additional use of regional funding
  • Consult with experts or installers

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