Sustain­able Passive Plus houses with Bio District heat­ing, learn­ings from a case study in Tarm, Denmark.

By Søren Dietz 

In Denmark 2/3 of build­ing heat is District heat­ing. The polit­i­cal aim is to reduce CO2emissions by 70% in 2030 with 1990 as refer­ence. Build­ings make up for 40% of the CO2 emis­sions – so reduc­ing green house gas from build­ing play a major role.

Green­house gas reduc­tion may come from both saving energy and trans­form­ing the energy sector to non fossil. Biomass resources are not local grown. 2/3 of wood Biomass for District Heat­ing is imported from Russia and the Baltic coun­tries.

How can Denmark achieve climate goals, in a sustain­able way, with Bio District heat­ing with less Biomass – is more build­ing insu­la­tion the answer?