The oil crisis back in the 1970’s became a turning point for the Danish energy politics, as focus turned towards producing renewable energy and reduce energy consumption in general.
The electricity grid in Aarhus is connected to the rest of Denmark and Northern Europe and electricity is bought through the European power exchange Nord Pool.
On the other hand, district heating is produced locally and in fact, the district heating system is unique to Denmark. In the region around Aarhus, an extensive distribution network has been developed since 1928 with both public and private sector heat producers. Around 95% of the citizens are connected to the network, which ensures an optimal effect of the production. The region’s large CHP plants supply both heat and electricity to Aarhus and the surrounding areas. This co-generation of power and district heating results in an improved fuel efficiency of more than 80 per cent. The district heating in Aarhus is green as the heat production primarily comes from either biomass or waste incineration.
Selection of sites and cases
The combined heat and power (CHP) plant in Lisbjerg in the north of Aarhus incinerates household waste as well as industrial waste and transforms it into power and heat, delivering 20% of Aarhus municipality’s district heating.
Biomass fired CHP plant
One of Denmark’s largest biomass fired combined heat and power (CHP) plants is located in the Aarhus area and was put into operation in spring 2017.
Heat pumps utilising seawater
Heat pumps utilise seawater as an energy source and provide more climate-friendly district heating.