CO2 emissions abatement costs for space heating and annual avoided emissions by measure of the Sustainable Recovery Plan per million dollars invested

Notes

tCO2 = tonnes of CO2. Dots represent the global weighted average for various technologies within each grouping: insulation, glazing and weatherisation = loft and floor insulation, improved glazing, weatherproofing, cavity wall insulation and exterior insulation; heat pumps = air source and ground source heat pumps; biomass boilers = conventional boilers and condensing biomass boilers; solar thermal = flat plate collectors and evacuated tubes.