12. jul 2017 Facts about district heating Facebook LinkedIn Twitter Print Heating for 1.713.449 Danish households is currently supplied by district heating. In total, this corresponds to 64,4 percent of all households. District heating is a transmission system that can be connected to all forms of heat production. Currently, district heating is produced from sources which include: waste, wood chips, straw, wind, solar heating, geothermal energy, natural gas, oil, coal and surplus heat from industry. 52 percent of district heating comes from green energy sources. District heating is legally required to adhere to a principle whereby district heating companies are not permitted to run at a profit. In other words, district heating is non-profit. There is a total of approx. 60,000 km of district heating network piping, 30,000 km inlet and 30,000 km outgoing. It contains about a billion litres of hot water. In 2013, district heating plants invested DKK 5 billion in green technologies. This created 6,000 jobs. The Danish District Heating Association (Dansk Fjernvarme) organises more than 400 Danish district heating companies. Facebook LinkedIn Twitter Print