United Kingdom Electricity Generation & Grid Mix
In 2025, United Kingdom generated 292.31 TWh of electricity (0.92% of global output, ranked #17 worldwide). Its primary generation source was Natural Gas at 90.91 TWh (31.1% of the national grid), while low-carbon sources (nuclear + renewables) provided 64.4% of total supply.
United Kingdom Electricity Generation by Source (2025)
2025 Total Output: 292.31 TWh · Carbon Intensity: 217 gCO2/kWh
United Kingdom Electricity Generation & Capacity by Source (2025)
| Generation Source | 2025 Output (TWh) | Grid Share (%) | Installed Capacity (GW) | 5Y Change | Share of World Fuel |
|---|---|---|---|---|---|
| Natural Gas | 90.91 TWh | 31.1% | 38.39 GW | -18.8% | 1.3% |
| Wind | 85.84 TWh | 29.4% | 33.40 GW | +13.5% | 3.2% |
| Bioenergy | 41.21 TWh | 14.1% | 7.01 GW | +6.8% | 5.8% |
| Nuclear | 36.38 TWh | 12.4% | 5.88 GW | -27.6% | 1.3% |
| Solar | 19.32 TWh | 6.6% | 21.66 GW | +53.9% | 0.7% |
| Oil & Other Fossil | 12.77 TWh | 4.4% | 2.21 GW | +44.5% | 1.6% |
| Hydroelectric | 5.55 TWh | 1.9% | 2.19 GW | -19.3% | 0.1% |
| Coal | 0.33 TWh | 0.1% | 0.00 GW | -94.2% | 0.0% |
United Kingdom Historical Generation & Emissions Ledger (2000-2025)
| Year | Total (TWh) | Coal | Gas | Nuclear | Hydro | Wind | Solar | Clean % | gCO2/kWh |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 292.3 | 0.3 | 90.9 | 36.4 | 5.6 | 85.8 | 19.3 | 64.4% | 217 |
| 2024 | 284.2 | 1.9 | 86.3 | 40.6 | 5.8 | 83.3 | 14.8 | 64.9% | 217 |
| 2023 | 292.5 | 3.8 | 101.7 | 40.6 | 5.5 | 82.2 | 13.9 | 60.3% | 236 |
| 2022 | 324.6 | 5.9 | 125.1 | 47.4 | 5.7 | 80.2 | 13.3 | 56.2% | 255 |
| 2021 | 307.9 | 6.8 | 122.8 | 46.1 | 5.4 | 64.9 | 12.1 | 54.8% | 267 |
| 2020 | 310.3 | 5.7 | 111.9 | 50.2 | 6.9 | 75.6 | 12.6 | 59.3% | 243 |
| 2019 | 327.2 | 6.9 | 133.1 | 56.2 | 5.9 | 63.8 | 12.4 | 53.8% | 268 |
| 2018 | 333.8 | 16.8 | 131.5 | 65.1 | 5.4 | 56.9 | 12.7 | 52.5% | 286 |
| 2017 | 338.2 | 22.5 | 136.8 | 70.3 | 5.9 | 49.7 | 11.5 | 50.0% | 302 |
| 2016 | 339.2 | 30.7 | 143.1 | 71.7 | 5.4 | 37.2 | 10.4 | 45.6% | 333 |
| 2015 | 338.9 | 75.9 | 99.9 | 70.3 | 6.3 | 40.3 | 7.5 | 45.4% | 398 |
| 2014 | 338.1 | 100.2 | 100.9 | 63.8 | 5.9 | 32.0 | 4.1 | 37.9% | 463 |
| 2013 | 358.3 | 130.3 | 95.8 | 70.6 | 4.7 | 28.4 | 2.0 | 34.6% | 507 |
| 2012 | 363.9 | 142.8 | 100.2 | 70.4 | 5.3 | 19.8 | 1.4 | 30.7% | 537 |
| 2011 | 368 | 108.4 | 146.5 | 69.0 | 5.7 | 16.0 | 0.2 | 28.3% | 500 |
| 2010 | 382.1 | 107.6 | 175.7 | 62.1 | 3.6 | 10.3 | 0.0 | 23.1% | 517 |
| 2009 | 376.8 | 103 | 166.5 | 69.1 | 5.2 | 9.3 | 0.0 | 25.0% | 505 |
| 2008 | 389 | 124.4 | 176.2 | 52.5 | 5.1 | 7.1 | 0.0 | 19.1% | 554 |
| 2007 | 396.8 | 135.9 | 165.8 | 63.0 | 5.1 | 5.3 | 0.0 | 20.8% | 556 |
| 2006 | 397.3 | 148.9 | 140.8 | 75.5 | 4.6 | 4.2 | 0.0 | 23.6% | 559 |
| 2005 | 398.4 | 134.6 | 152.6 | 81.6 | 4.9 | 2.9 | 0.0 | 24.7% | 535 |
| 2004 | 393.9 | 131.8 | 157.1 | 80.0 | 4.8 | 1.9 | 0.0 | 23.9% | 536 |
| 2003 | 398.2 | 138.5 | 148.9 | 88.7 | 3.2 | 1.3 | 0.0 | 24.9% | 537 |
| 2002 | 387.2 | 124.3 | 152.3 | 87.9 | 4.8 | 1.3 | 0.0 | 25.6% | 521 |
| 2001 | 384.8 | 131.5 | 141.9 | 90.1 | 4.1 | 1.0 | 0.0 | 25.9% | 529 |
| 2000 | 377.1 | 120 | 148.1 | 85.1 | 5.1 | 0.9 | 0.0 | 25.2% | 522 |
Frequently Asked Questions - United Kingdom Power Grid
How much electricity does United Kingdom generate and what is its #1 power source?
In 2025, United Kingdom generated 292.31 TWh of electricity (0.92% of global output). Its largest single generation source was Natural Gas at 90.91 TWh (31.1% of the national grid mix).
What share of United Kingdom's electricity comes from clean and renewable sources?
Low-carbon sources (nuclear plus renewables) supplied 64.4% of United Kingdom's electricity in 2025, with renewables accounting for 52.0% and wind plus solar contributing 36.0%. Fossil fuels accounted for 35.6% of total generation.
What is the carbon intensity of United Kingdom's electricity grid?
In 2025, United Kingdom's power sector carbon intensity was 217.4 gCO2/kWh, with total power sector emissions of 63.55 million metric tons of CO2.