PROJECT PROFILE
Cost and Emissions Impacts of Residential Building Electrification in California | Three Utility Study, 2018-19

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E3 was retained by three of California’s largest electric utilities – Southern California Edison (SCE), Sacramento Municipal Utility District (SMUD), and the Los Angeles Department of Water and Power (LADWP) – to explore the consumer costs and emissions reduction potential associated with the electrification of California homes. The study examines costs, savings, and emissions for electric and gas appliances in six different home types in geographical areas covering over half the state’s population. Unlike prior studies, it closely evaluates the consumer cost perspective on building electrification and quantifies GHG emissions savings by home type. E3 found that building electrification would deliver lifecycle cost savings for most home types in the study area. For homes with air conditioning – about 80 percent of the total – the economics are particularly strong: all new construction homes and the vast majority (84 percent) of existing single-family homes with A/C would save by going all-electric. E3 also found that electrification would significantly reduce greenhouse gas emissions from homes – starting today. For example, a Sacramento home built in the 1990s would immediately cut its GHG emissions nearly in half by switching to all-electric appliances; by 2050, with a significantly cleaner electric grid, the GHG savings would grow to over 80 percent (and more, if California achieves carbon neutrality).


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