ewz.pronatur is certified green electricity from Switzerland. For every kilowatt-hour sold, one centime will be invested in the naturemade star fund. This supports renaturation projects in Switzerland.

Maximum protection of the environment

This ensures maximum environmental protection during electricity production. naturemade star certification indicates energy produced in a particularly environmentally friendly way.

Local value generation

This supports the production of high-quality, eco-friendly electricity in Switzerland. For example, solar panels in Zurich or hydropower plants in the Grisons.

The naturemade star label

By opting for ewz.pronatur you're supporting the most stringent quality label across Europe for energy produced in an environmentally friendly way. For every kilowatt-hour sold, one centime will be invested in the naturemade star fund, which supports the renaturation of habitats and the increasing of biodiversity. Two examples:

Our bestsellers


Green electricity
Average for a single person household*

* * in*incl. VAT. 1,600 kWh/year (of which 1,168 kWh at peak tariff and 432 kWh at off-peak tariff)

Green electricity – because together we can make a difference

Green electricity is clean

For us, green electricity means climate-friendly and environmentally friendly energy from hydro, wind and solar power.

Green electricity is verifiable.

We produce most of it ourselves or at our partner plants, also located in Switzerland. This means that we can guarantee sustainable energy production.

Green electricity is a necessity

By producing green electricity, we're playing a key role in replacing nuclear power. That is why we promote the expansion of green power plants.

Green electricity is sustainable

Water, wind and sunlight will always be available as energy sources in the future. We can therefore be secure in the knowledge that reliable production of green electricity can continue.

Green electricity is sustainable

We invest in the production of green electricity where the natural resources are available. Compatibility with the climate and the environment are important to us, as is cost-effectiveness.

Do you want to do more for the environment?
Then produce your own solar power. With ewz.solarzüri, as a tenant in the city of Zurich, you can invest in a public solar power system and help to make sure that less CO₂ is released into the environment. More than 3,000 Zurich residents are already doing the same.
Join now (in German)

Frequently asked questions

ewz.pronatur – certified green electricity from hydro, sun and wind power, produced in Switzerland. For every kilowatt hour, CHF 0.01 is invested in the naturemade star fund, which supports the renaturation of habitats.

ewz.natur – affordable green electricity from hydro, solar and wind power, produced 100 per cent in Switzerland and Europe by ewz.

ewz.econatur – green electricity from hydro and wind power produced in Switzerland and Europe.


You can change to an electricity product with a higher environmental value at any point. For example, from ewz.natur to ewz.pronatur. The change will apply immediately.


Do you want to change to an electricity product with a lower environmental value? For example, from ewz.pronatur to ewz.natur? Then please let us know no later than 20 days after you’ve received your yearly bill. The change will apply as soon as the new billing period begins. Do you get a bill every month? Then the change will apply from the next quarter, but only if you’ve told us that you want to change 30 days in advance.

Our recommendation is ewz.natur. You’ll receive pure green electricity from our own production facilities at a very attractive price. If you want to do more for the environment, choose ewz.pronatur.