United States Electricity Generation & Grid Mix
In 2025, United States generated 4,519.79 TWh of electricity (14.24% of global output, ranked #2 worldwide). Its primary generation source was Natural Gas at 1,807.34 TWh (40.0% of the national grid), while low-carbon sources (nuclear + renewables) provided 43.0% of total supply.
United States Electricity Generation by Source (2025)
2025 Total Output: 4,519.79 TWh · Carbon Intensity: 384 gCO2/kWh
United States Electricity Generation & Capacity by Source (2025)
| Generation Source | 2025 Output (TWh) | Grid Share (%) | Installed Capacity (GW) | 5Y Change | Share of World Fuel |
|---|---|---|---|---|---|
| Natural Gas | 1,807.34 TWh | 40.0% | 549.79 GW | +11.3% | 26.2% |
| Nuclear | 784.78 TWh | 17.4% | 96.89 GW | -0.6% | 27.9% |
| Coal | 737.15 TWh | 16.3% | 188.86 GW | -4.7% | 7.0% |
| Wind | 464.39 TWh | 10.3% | 158.83 GW | +37.4% | 17.1% |
| Solar | 388.82 TWh | 8.6% | 211.61 GW | +197.4% | 14.0% |
| Hydroelectric | 241.7 TWh | 5.3% | 84.15 GW | -13.7% | 5.5% |
| Bioenergy | 46.19 TWh | 1.0% | 9.72 GW | -15.6% | 6.5% |
| Oil & Other Fossil | 31.72 TWh | 0.7% | 32.51 GW | -7.6% | 3.9% |
| Geothermal & Other | 17.70 TWh | 0.4% | 0.89 GW | -2.2% | 19.8% |
United States Historical Generation & Emissions Ledger (2000-2025)
| Year | Total (TWh) | Coal | Gas | Nuclear | Hydro | Wind | Solar | Clean % | gCO2/kWh |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 4,519.8 | 737.2 | 1,807.3 | 784.8 | 241.7 | 464.4 | 388.8 | 43.0% | 384 |
| 2024 | 4,391 | 652.2 | 1,869.9 | 781.9 | 237 | 451.9 | 303.8 | 41.9% | 384 |
| 2023 | 4,253.9 | 675.1 | 1,806.1 | 774.9 | 239 | 421.1 | 238.9 | 40.9% | 393 |
| 2022 | 4,286.9 | 831.5 | 1,687.1 | 771.5 | 248.8 | 434.3 | 205.1 | 40.3% | 410 |
| 2021 | 4,153.6 | 898 | 1,579.2 | 779.7 | 246.5 | 378.2 | 164.4 | 39.5% | 424 |
| 2020 | 4,043.2 | 773.4 | 1,624.2 | 789.9 | 280 | 337.9 | 130.7 | 39.9% | 412 |
| 2019 | 4,158.4 | 965 | 1,585.8 | 809.4 | 282.6 | 295.9 | 106.9 | 37.8% | 439 |
| 2018 | 4,201.6 | 1,149.5 | 1,469.1 | 807.1 | 286.6 | 272.7 | 93.4 | 36.6% | 463 |
| 2017 | 4,052.3 | 1,205.8 | 1,296.4 | 805 | 293.8 | 254.3 | 77.3 | 37.3% | 469 |
| 2016 | 4,087.6 | 1,239.2 | 1,378.3 | 805.7 | 261.1 | 227 | 54.9 | 35.0% | 483 |
| 2015 | 4,084 | 1,352.4 | 1,333.5 | 797.2 | 244 | 190.7 | 39.0 | 33.1% | 505 |
| 2014 | 4,096 | 1,581.7 | 1,126.6 | 797.2 | 253.2 | 181.7 | 28.9 | 32.8% | 530 |
| 2013 | 4,055.6 | 1,581.1 | 1,124.8 | 789 | 263.9 | 167.8 | 9.0 | 32.3% | 534 |
| 2012 | 4,040.7 | 1,514 | 1,225.9 | 769.3 | 271.3 | 140.8 | 4.3 | 31.2% | 533 |
| 2011 | 4,088.9 | 1,733.4 | 1,013.7 | 790.2 | 312.9 | 120.2 | 1.8 | 31.8% | 551 |
| 2010 | 4,113.9 | 1,847.3 | 987.7 | 807 | 254.7 | 94.7 | 1.2 | 29.9% | 571 |
| 2009 | 3,939.8 | 1,755.9 | 921 | 798.9 | 268.8 | 73.9 | 0.9 | 30.8% | 565 |
| 2008 | 4,107.5 | 1,985.8 | 883 | 806.2 | 248.5 | 55.4 | 0.9 | 28.8% | 591 |
| 2007 | 4,142.6 | 2,016.5 | 896.6 | 806.4 | 240.6 | 34.5 | 0.6 | 27.9% | 599 |
| 2006 | 4,046.9 | 1,990.5 | 816.4 | 787.2 | 282.7 | 26.6 | 0.5 | 28.9% | 596 |
| 2005 | 4,035 | 2,012.9 | 761 | 782 | 263.8 | 17.8 | 0.6 | 28.1% | 604 |
| 2004 | 3,952 | 1,978.3 | 710.1 | 788.5 | 259.9 | 14.1 | 0.6 | 28.7% | 602 |
| 2003 | 3,868.9 | 1,973.7 | 649.9 | 763.7 | 267.3 | 11.2 | 0.5 | 28.8% | 606 |
| 2002 | 3,844.2 | 1,933.1 | 691 | 780.1 | 255.6 | 10.4 | 0.6 | 29.0% | 601 |
| 2001 | 3,727.6 | 1,904 | 639.1 | 768.8 | 208.1 | 6.7 | 0.5 | 28.1% | 610 |
| 2000 | 3,802.1 | 1,966.3 | 615 | 753.9 | 270 | 5.6 | 0.5 | 29.1% | 608 |
Frequently Asked Questions - United States Power Grid
How much electricity does United States generate and what is its #1 power source?
In 2025, United States generated 4,519.79 TWh of electricity (14.24% of global output). Its largest single generation source was Natural Gas at 1,807.34 TWh (40.0% of the national grid mix).
What share of United States's electricity comes from clean and renewable sources?
Low-carbon sources (nuclear plus renewables) supplied 43.0% of United States's electricity in 2025, with renewables accounting for 25.6% and wind plus solar contributing 18.9%. Fossil fuels accounted for 57.0% of total generation.
What is the carbon intensity of United States's electricity grid?
In 2025, United States's power sector carbon intensity was 384.4 gCO2/kWh, with total power sector emissions of 1,737.41 million metric tons of CO2.