Regulating kitchen equipment performance can improve energy consumption. Adjusting ventilation system power according to client traffic, for example, saves energy.
In 2004, 24 McDonald’s restaurants in Sweden started coupling CO2 detectors with ventilation systems to assess client traffic density. When few customers are present in the restaurant, the ventilator switches to a lower speed, consuming less energy than during rush hours. This ensures customer and staff comfort while saving energy. The detector has been installed in at least 78 stores.
On average, the detector-equipped restaurants marked a 15 percent drop in energy consumption. They achieved a return on investment in slightly more than one year.