A 100% green REMA1000 supermarket in Norway is expected to reach 30% energy savings using an innovative solution from Danfoss and SINTEF. According to the two companies, the store, which utilises an integrated CO2 system and heat recovery, will be the pilot concept store for REMA1000 grocery stores to be built over the next few years, i.e. technologies demonstrated to perform well in the pilot store will be applied further.
It is an extremely high-tech and integrated CO2 and heat recovery solution, and an innovative project. The basic idea behind the new solution is that the refrigeration system also serves as a heat pump in winter and provides cooling for the air-handling unit in the summer. The surplus heat from the refrigeration system is applied for floor heating, heating up the supply air of the ventilation unit and keeping the pavements snow and ice free during the cold Norwegian winters,” says Dr. Armin Hafner, Senior Research Scientist at SINTEF Energy Research.