At least in parts of Eastern Europe (especially the former GDR) district heating systems were introduced as a response to the oil crises of the 70s, resulting p

At least in parts of Eastern Europe (especially the former GDR) district heating systems were introduced as a response to the oil crises of the 70s, resulting price shocks and the transport of coal to households being very labor and resource incentive [1]. [1] https://www.ndr.de/geschichte/schauplaetze/Windkraft-und-Erdwaerme-Wie-die-DDR-mal-Vorreiter-war,alternativenergie100.html https://www.ndr.de/geschichte/schauplaetze/Windkraft-und-Erd...