DSS
Federal Office for the Environment FOEN
In addition to improvements in energy efficiency and the withdrawal from nuclear energy, the development of renewable energies constitutes a pillar of sustainable climate and energy policy. Alongside hydropower, which has for many years played a crucial role with respect to the supply of electricity, new renewables – solar energy, wood, biomass, wind energy, geothermal energy and ambient heat – will have to make an increased contribution towards Switzerland’s supply of energy in the future.
In 2024, the production of electricity from new renewable energy sources (solar energy, biomass, biogas, wind energy, waste) amounted to 8'300 GWh, which is equivalent to about 10 per cent of Switzerland’s net electricity production. This share is relatively low considering the significant potential for production from new renewable sources.
However, developments over the past ten years have been pleasing. The positive trend should now continue thanks to the measures defined in the Energy Strategy 2050 aimed at promoting the production of electricity from new renewable energy sources:
Renewable energy can also contribute towards the production of heat (cf. graph ‘Heat’). Since 1990, the use of heat from renewable energy sources has increased sharply and in 2024 reached 23’044 GWh (figure adjusted for climate factors, deduction of renewable heat losses from district heat). Wood combustion accounts for 49 per cent of the heat obtained from renewable sources, while waste heat from incineration plants accounts for 12 per cent and heat pumps (energy obtained from the environment: air, water, soil) for around 34 per cent.
The data published by the International Energy Agency (IEA) depict the production of electricity and heat in various countries by energy source. An international comparison should also include the proportion of renewable energy to total electricity / heat production.
The indicator is based on data from the Swiss renewable energy statistics, which are collected on behalf of the Swiss Federal Office of Energy (SFOE). The renewable energy statistics indicate the degree of conversion from the various sources (sun, wood, ambient heat, etc.) to electricity and heat. See Annex E to the Swiss renewable energy statistics.
