GLOBAL RANK #2 · USA North America Moderate-Carbon Grid (150-399 gCO2/kWh)

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.

2025 Generation 4,519.8 TWh Rank #2 (14.24% world)
#1 Power Source Natural Gas 40.0% (1,807.3 TWh)
Low-Carbon Share 43.0% Renewables: 25.6%
Fossil Fuel Share 57.0% 2,576.2 TWh fossil
Per-Capita Load 13,060 kWh Annual per person
CO2 Intensity 384 gCO2 1,737.4 Mt CO2 total
2025 National Grid Fuel Mix Breakdown (100% = 4,519.8 TWh) Wind + Solar = 18.9% of Grid
Natural Gas: 40.0% (1,807.3 TWh) Nuclear: 17.4% (784.8 TWh) Coal: 16.3% (737.2 TWh) Wind: 10.3% (464.4 TWh) Solar: 8.6% (388.8 TWh) Hydroelectric: 5.3% (241.7 TWh)
GRID TELEMETRY · 2025 GENERATION MIX & 2000-2025 SERIES

United States Electricity Generation by Source (2025)

2025 Total Output: 4,519.79 TWh · Carbon Intensity: 384 gCO2/kWh

Natural Gas
1,807.34 TWh 40.0%
Nuclear
784.78 TWh 17.4%
Coal
737.15 TWh 16.3%
Wind
464.39 TWh 10.3%
Solar
388.82 TWh 8.6%
Hydroelectric
241.7 TWh 5.3%
Bioenergy
46.19 TWh 1.0%
Oil & Other Fossil
31.72 TWh 0.7%
Geothermal & Other
17.70 TWh 0.4%
Source: Ember Yearly Electricity Data & U.S. EIA · Unit: Terawatt-hours (TWh) #1 Power Source: Natural Gas (40.0% of grid)

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.