In both the BPO and 2DS, biomass plays a bigger role in district heating towards 2030 and beyond. This is due to the relatively cheap domestic biomass available to meet RE targets in the BPO. Biomass competitiveness is subject to uncertainty, if global biomass demand drives up prices. By 2050, heat pumps could supply up to 40% of the annual heat consumption in the 4DS and BPO.