Heating and cooling, photovoltaics and self-consumption associations (ZEV), electromobility and electricity – all from a single source.

Transforming historic SBB workshops into a sustainable district with a carbon-neutral energy concept.

The historic building with a listed facade will be supplied with 100 per cent fossil-free heating and cooling generated from lake water.

The use of river water ensures an environmentally friendly heat supply.

The largest Minergie-A ECO quarter with Swiss timber and holistic energy solution.

2000-watt site with integrated energy, telecommunications and charging infrastructure solution.

In ‘The Metropolitans’, ewz has created a forward-looking complete solution for electromobility.

Climate-friendly heating and cooling with water from Lake Zurich.

Local heating and cooling for 30,000 households.

Intelligent combination of two heating networks for a densely populated area.

Climate-friendly heating and cooling from local resources.

Holistic solar energy solutions for the roofs of 59 stores across Switzerland.

Ice hockey with a carbon-neutral energy concept at Switzerland’s most cutting-edge sports and events arena.

Sophisticated energy solution: maximum energy efficiency thanks to the targeted use of waste heat.

PV plant perfectly integrated into the architecture – and recognised with the Solar Prize.

Direct comparison of sustainable energy solutions using different technologies.

Our innovative energy solution saves 680 tonnes of CO₂ per year and is 100 per cent carbon-neutral. Waste heat utilisation is an integral part of this.

Listed buildings are also suitable for efficient solar panels.

The local heating network supplies 395 apartments with renewable energy from geothermal energy and solar energy.

Environmentally friendly heating and electricity using local wood from the Grisons.

The small local heating network supplies four properties in the healthcare sector with heat efficiently and sustainably.

We have implemented more than 1,500 energy solutions. You will find a selection of them here.