Energy use at UZH
Per year, UZH uses 111,307 megawatt hours (MWh) of energy. The total is made up of 58% electricity, 35% district heating, 6% natural gas, 1% heating oil and a small amount of woodchips.
Evolution of energy use
While UZH has grown a great deal in recent years (the red line shows the number of full-time equivalent employees and students, with students counted as 0.6 FTE), the average energy use per person has fallen thanks to UZH's efforts to increase energy efficiency. For example, in the last five years, most lighting at UZH has been replaced with LEDs.
The distribution of the average energy use per person shows a decrease over time of the use of fossil fuels.
Energy consumption of a building
Shown here is the energy consumption of a laboratory building, using buildings Y19 and Y38 as examples. 61% of the power requirement is needed to operate the labs, 24% for ventilation, 10% for refrigeration and 5% for lighting. Of the thermal energy, 73% is used for heating and 27% to humidify the air.
How much is a kilowatt hour?
With a kilowatt hour (kWh) of energy you can make 50 cups of coffee, keep a 20W lamp on for 50 hours, use an electric heater for 30 to 90 minutes, work for 12 hours on a desktop computer or 50 hours on a laptop, surf the internet for four days or drive a car with the equivalent of one deciliter of petrol.