Tracking the source of the electricity you consume
Electricity sourcing information is official data that tells you the sources (hydroelectric, solar, nuclear, etc.) of the electricity you consume. It is reported annually for the electricity supplied in the previous year to provide you with greater transparency regarding the origin of the electricity supplied.
The electricity distributed by SEIC in 2025 will consist of 100% Swiss renewable energy.
The renewable energy supplied consists of:
- 93.7% of Switzerland's hydropower
- 0.3% of Swiss solar energy
- 6% of electricity generated through incentive programs*, consisting of: 52.3% hydropower, 17.9% solar power, 4.2% wind power, 21.6% biomass, 4.0% municipal solid waste (renewable portion), and 0% geothermal power.
*This national program to support electricity generation from renewable sources is funded by the cost-based feed-in tariff (RPC), to which you contribute through the “federal transmission network surcharge,” which was 2.30 cts/kWh in 2025.
2025 Labeling: Discover Your Product's Blend
Starting in 2026, for the 2025 delivery year, the regulations require that the labeling be presented in a more comprehensive manner. The purpose is to allow you to compare the energy mix of the product you purchased with your supplier’s overall energy mix.
In addition,CO2 emissions and the amount of nuclear waste generated during electricity production are also listed.
This comparison helps you better understand where the electricity you’ve used comes from and see how your choice compares to the full range of options offered by SEIC.
you receive our standard SEIClogicproduct
For an extra cost equivalent to the price of a cup of coffee per month, you can get 100% renewable electricity—no nuclear power.
You had chosen SEICbasic
This product is no longer available as of 2026. It has been replaced bySEICmix, which consists of two-thirds renewable electricity and one-third nuclear power.
You had chosenSEICbénéfic
You had subscribed toSEICpanoramic
you receivedSEIChydric
Guarantees of Origin for Electricity Labeling
A guarantee of origin is the official electronic certificate issued by Pronovo (the federal agency responsible for registering guarantees of origin) that identifies the source of the electricity consumed based on the generation technology used (solar, hydroelectric, nuclear, etc.) and the location of generation.
Since electrons cannot be tracked, these certificates are used to track the electricity supplied, under Pronovo’s supervision.
In 2025, a higher-than-expected volume of hydroelectric certificates of origin was incorporated. This situation provided an opportunity to promote electricity with high environmental quality, enabling SEIC to offer its customers a fully renewable supplier mix.