Electricity from solar or wind power is increasingly substituting electricity from conventional coal and gas-fired power plants in Germany. This reduces both emissions and wholesale prices on the energy market. Both effects benefit not only Germany, but – via the transnational electricity market – also its neighbouring countries. However, the costs of promoting renewable energies are mainly borne by German consumers, as they pay the EEG surcharge levied on them. This is the result of a study by ZEW Mannheim and the Potsdam Institute for Climate Impact Research (PIK) based on generation and wholesale market price data for ten Central European countries between 2015 and 2020.