I don't know about official policy, but I think in Denmark district heating (fjernvarme) is still the preferred option where it's available. Copenhagen's syste

I don't know about official policy, but I think in Denmark district heating (fjernvarme) is still the preferred option where it's available. Copenhagen's system is enormous, covering most of the city. It's powered by 69% biomass (wood and straw), 16% renewable waste, 8% non-renewable waste, 4% oil, 3% gas, 0% coal. [PDF in English] https://www.hofor.dk/wp-content/uploads/2016/09/district_heating_in_cph.pdf https://www.hofor.dk/wp-content/uploads/2016/09/district_hea... [Danish page] https://www.hofor.dk/privat/fjernvarme/bliv-klog-paa-fjernvarme/saadan-producerer-hofor-fjernvarme/ https://www.hofor.dk/privat/fjernvarme/bliv-klog-paa-fjernva...