According to the ninth edition of the Sustainable Energy in America Factbook, which was released in February 2021 by the Business Council for Sustainable Energy (BCSE) and BloombergNEF, the COVID-19 pandemic caused the largest year-on-year decline in energy consumption in three decades.[1] In 2020, U.S. primary energy consumption dropped 7.8%. Transportation energy demand fell 14.4% due to lower rates of commuting and traveling. Electricity use declined least, falling by 3.8% as decreased commercial and industrial demand was partially offset by increased residential demand. Renewables production rose 11% year-on-year and renewable sources generated a fifth of U.S. power in 2020. The U.S. power grid added 17 GW of wind and 16.5 GW of solar. Coal-fired power generation was 19% of the U.S. power mix, down from 45% a decade ago. The report attributes this change to weak demand and increased competition. Total U.S. emissions fell 9.2% which put 2020 20% below 2005 levels. According to the report, these changes have put the U.S. on a trajectory to meet its commitments under the Paris Agreement. However, the report notes that 2021 emissions will likely rebound with economic recovery.

[1]https://bcse.org/factbook/#:~:text=The%202020%20edition%20of%20the,natural%20gas%20and%20renewable%20energy