designed for
sustainability
renewable energy
An environmental declaration provides information on the composition of all ewz electricity products. It contains the life cycle assessment values according to different assessment methods as well as the emission values for CO₂, nitrogen oxides and dust.
The Environmental impact points (EIPs) shown below indicate the level of environmental pollution caused by electricity products. The EIPs, which are calculated according to the ecological scarcity method developed in Switzerland, take into account a wide range of environmental impacts.
The environmental impact of ewz electricity products for private households in the basic supply is significantly lower than that of the Swiss electricity supplier mix. For comparison: in the case of nuclear power, the undesirable environmental impact is many times higher.
Greenhouse gas (GHG) emissions from ewz’s power production technologies are significantly lower than those of the Swiss electricity supplier mix. At 14.6 g CO₂-eq, they are also well below the Swiss average of 54.4 g CO₂-eq. By contrast, purchasing electricity from gas-fired combined-cycle power plants results in GHG emissions of 432 g CO₂-eq per kWh. Emissions from the construction and operation of transmission and distribution grids amount to 5.1 g CO₂-eq.
We have been actively rebuilding the ewz power production portfolio since 2008. We will continue to pursue this course consistently in the coming years.
Our aim is to invest around CHF 200 million per year in infrastructure projects. This will enable us to safeguard the fabric of existing assets for the long term while ensuring sustainable growth and the expansion of renewable energy production.
CO₂-eq is a unit of measure used to standardise the greenhouse gas impact of different climate gases. Here’s an example: Methane (CH₄) is 25 times more damaging to the climate than CO₂. The greenhouse gas potential of 1 g of methane therefore corresponds to 25 g of CO₂-eq.
