With the passing of the Federal Energy Decree in 1991, electricity companies were obliged to buy electricity from renewable sources produced by private companies at a fixed rate of CHF 0.15 in the annual average. The power limit (for hydropower plants only) was set at 1 MW. IEA/IRENA Global Renewable Energy Policies and Measures Database © OECD/IEA and IRENA, [November 2020]