PV roof system
A PV system with an output of around 200 kilowatts (kWp) has been installed on the roof of the waterworks in Essen-Überruhr. 608 solar panels with a total surface area of almost 2,000 m² produce around 170,000 kWh of green electricity per year. This means annual CO2 savings of over 91 tonnes. By comparison, this amount is roughly equivalent to the annual emissions of 13 medium-sized cars driving 50,000 km per year.