This article was published by the US Energy Information Administration on June 7, 2023.
By Max Ober
According to our Short-Term Energy Outlook (STEO), U.S. electricity generation from natural gas reached a record-high 619 billion kilowatthours (BkWh) during the most recent winter heating season (November 1–March 31), averaging more than 120 BkWh per month and accounting for 38 per cent of the country’s electricity generation mix. Electricity generation from natural gas increased in the United States this past winter due to increased demand for electricity and continued reductions in electricity generation from coal.
U.S. electricity generation from natural gas peaks in the summer when demand for electricity is greatest—largely driven by demand for air conditioning. A smaller peak occurs during the winter, when homes and businesses in some areas of the country use heat pumps, electric radiators, space heaters, and other electric-heating equipment to heat buildings.
Overall, U.S. electricity generation this past winter was the highest since at least 1997. The increased electricity demand was met by natural gas, wind, and solar—all of which increased their overall electricity generation compared with the previous winter of 2021–22. In contrast, electricity generation from coal decreased compared with the previous winter.
Natural gas-fired power plants are relatively flexible to operate because they can ramp electricity generation up or down relatively quickly to meet demand fluctuations. Coal-fired electricity declined throughout 2022 and into 2023 because of a long-term trend of coal capacity retirements as well as increased competition from natural gas-fired combined-cycle power plants when natural gas prices are low. As a result, the natural gas-fired share of the U.S. electricity generation mix increased from 35 per cent in winter 2021–22 to 38 per cent last winter. During the same period, coal’s generation share fell from 21 per cent to 18 per cent.
Renewables’ share of electricity generation also increased to help meet overall electricity demand. In 2022, 8 gigawatts (GW) of new wind capacity additions and 10 GW of new solar capacity additions came online, according to our Electric Power Monthly.