Weighted average cost of capital (WACC) – imputed interest rate
The imputed interest rates for renewable energy support instruments in 2026 are as follows:
- Market premiums for large-scale hydropower valid for funding applications for the year 2025: 4.28% (previous year: 5.10%)
- Investment contributions for funding applications in 2026:
Hydropower: 4.28% (previous year: 5.10%)
Biomass: 4.28% (previous year: 5.10%)
Geothermal: 4.63% (previous year: 5.45%)
General photovoltaic systems: 3.75% (previous year: 4.58%)
Large-scale alpine photovoltaic plants: 4.28% (previous year: 5.10%)
Wind turbines: 4.45% (previous year: 5.28%)