Weighted average cost of capital (WACC) – imputed interest rate

The imputed interest rates for renewable energy support instruments in 2025 are as follows:

  • Market premiums for large-scale hydropower valid for funding applications in 2024: 5.10% (previous year: 5.11%)
  • Investment contributions for funding applications in 2025:
    Hydropower: 5.10% (previous year: 5.11%)
    Biomass: 5.10% (previous year: 5.11%)
    Geothermal: 5.45% (previous year: 5.56%)
    General photovoltaic systems: 4.58% (previous year: 4.74%)
    Large-scale alpine photovoltaic plants: 5.10% (previous year: 5.11%)
    Wind turbines: 5.28% (previous year: 5.33%)

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Explanatory material

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Last modification 03.03.2025

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