The Energy Information Administration (EIA) recently published the final US electricity generation data for 2023.
From largest to smallest…
2023 US electricity
GWh Percent of Total Natural Gas 1,802,062 42.4% Nuclear 775,347 18.2 Coal 675,264 15.9 Wind 425,235 10.0 Hydro 239,855 5.6 Large Solar 164,502 3.9 Small Solar 73,619 1.7 Other Renew 63,926 1.5 Petroleum 16,472 0.4 Other 15,509 0.4
Numbers from Here and Here. Other Renewables consists of things like wood, geothermal, landfill gas and waste.
Below are some additional observations…
Electricity generation from natural gas is again at an all-time high. 2023 was 7% higher than 2022. Natural gas remains the largest source of power generation in the US, by a wide margin. I figure the extra CO2 emissions from burning that gas produced an extra 45 million metric tonnes of CO2. However, electricity from coal continues to decline, and was down 19% in 2023, which saved about 150 million tonnes of CO2. Overall, including petroleum and some miscellaneous sources, I figure CO2 emissions in the electricity sector were down about 105 million tonnes in 2023, compared to 2022. We will know more next month, when the final CO2 numbers for the electricity sector are published by EIA.
Electricity generation from large scale renewables was down in 2023 compared to 2022. Production from utility scale renewables decreased almost 1 percent over 2022. If small scale solar is included, then renewable generation was up slightly, with a 0.5% increase. Production from solar power was up 16% over 2022, but wind power was down 2%, solar thermal was down 5%, and conventional hydro was down 6%.
Solar PV capacity factor (CF) was 23.3% in 2023, which the lowest CF that I can find in the EIA records for solar PV. Wind power CF was 33.5%, which is also low compared to recent years. I guess the sun just didn’t shine as much on the US, and the wind didn’t blow as much as usual last year. (Nuclear power CF was a very good 93.1% in 2023, if anyone cares.)
- Pete