Decarbonization pathways for the residential sector in the United States

Peter Berrill (), Eric J. H. Wilson, Janet L. Reyna, Anthony D. Fontanini and Edgar G. Hertwich
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Peter Berrill: Yale University
Eric J. H. Wilson: National Renewable Energy Laboratory
Janet L. Reyna: National Renewable Energy Laboratory
Anthony D. Fontanini: National Renewable Energy Laboratory
Edgar G. Hertwich: Norwegian University of Science and Technology

Nature Climate Change, 2022, vol. 12, issue 8, 712-718

Abstract: Abstract Residential GHG emissions in the United States are driven in part by a housing stock where onsite fossil combustion is common, home sizes are large by international standards, energy efficiency potential is large and electricity generation in many regions is GHG intensive. In this analysis, we assess decarbonization pathways for the US residential sector to 2060, through 108 scenarios describing housing stock evolution, new housing characteristics, renovation levels and clean electricity. The lowest emission pathways involve very rapid decarbonization of electricity supply alongside extensive renovations to existing homes, including improving thermal envelopes and heat pump electrification of heating. Reducing the size and increasing the electrification of new homes provide further emission cuts and combining all strategies enables reductions of 91% between 2020 and 2050. The potential of individual mitigation strategies shows great regional variation. Reaching zero emissions will require simultaneous deployment of multiple strategies and greater reduction of embodied emissions.

Date: 2022
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DOI: 10.1038/s41558-022-01429-y

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