In 2020, California’s energy intensity (energy input relative to GDP output) decreased by 8.61 percent compared to 2019—nearly double the previous year’s decrease of 4.4 percent. The transportation sector leads with a 20.8 percent drop, followed by a 4.8 percent decrease in the commercial sector. The transportation sector’s energy intensity reduction rate fell steeply compared to the 3.6 percent drop between 2018 to 2019, and this still represents a faster drop than between 2017 and 2018 (-3.4%). Of all the economic sectors, only residential saw a year-over-year increase (6.5%) for the first time since the Great Recession, rising 4.3 times faster between 2019 and 2020 than the 1.5 percent increase between 2008 and 2009. This increase in the residential sector in 2020 is likely due to the COVID-19 pandemic as more people were working from and staying at home.