Key instruments include low-interest loans, feed-in tariffs, consulting subsidies, and tax exemptions. The KfW Loan 270 program provides long-term, low-interest financing covering up to 100% of project costs. A wide range of federal, state, and municipal programs are available to support households, companies, and communities in adopting solar power. 11 ct/kWh locked for 20 years, and state bonuses up to €6,000. Rates decline 1% every 6 months. Systems registered today lock. European solar incentives 2026 compared: Germany EEG 8. Projects may be filed as part of another New Building or Alteration permit application.