Belgium Electricity Generation & Grid Mix
In 2025, Belgium generated 66.88 TWh of electricity (0.21% of global output, ranked #48 worldwide). Its primary generation source was Nuclear at 24.11 TWh (36.0% of the national grid), while low-carbon sources (nuclear + renewables) provided 79.9% of total supply.
Belgium Electricity Generation by Source (2025)
2025 Total Output: 66.88 TWh · Carbon Intensity: 109 gCO2/kWh
Belgium Electricity Generation & Capacity by Source (2025)
| Generation Source | 2025 Output (TWh) | Grid Share (%) | Installed Capacity (GW) | 5Y Change | Share of World Fuel |
|---|---|---|---|---|---|
| Nuclear | 24.11 TWh | 36.0% | 2.08 GW | -30.0% | 0.9% |
| Wind | 13.39 TWh | 20.0% | 5.85 GW | +4.5% | 0.5% |
| Natural Gas | 13.04 TWh | 19.5% | 7.26 GW | -51.3% | 0.2% |
| Solar | 10.46 TWh | 15.6% | 10.40 GW | +104.7% | 0.4% |
| Bioenergy | 4.98 TWh | 7.5% | 0.52 GW | -5.3% | 0.7% |
| Hydroelectric | 0.49 TWh | 0.7% | 0.11 GW | +81.5% | 0.0% |
| Oil & Other Fossil | 0.41 TWh | 0.6% | 0.50 GW | -88.7% | 0.1% |
Belgium Historical Generation & Emissions Ledger (2000-2025)
| Year | Total (TWh) | Coal | Gas | Nuclear | Hydro | Wind | Solar | Clean % | gCO2/kWh |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 66.9 | 0.0 | 13.0 | 24.1 | 0.5 | 13.4 | 10.5 | 79.9% | 109 |
| 2024 | 75.8 | 0.0 | 14.2 | 31.3 | 0.6 | 13.9 | 8.6 | 76.3% | 127 |
| 2023 | 82.1 | 0.0 | 18.3 | 32.9 | 0.4 | 15.4 | 7.8 | 73.5% | 135 |
| 2022 | 94.3 | 0.0 | 22.0 | 43.9 | 0.3 | 12.4 | 6.9 | 72.4% | 139 |
| 2021 | 99.4 | 0.0 | 22.5 | 50.3 | 0.4 | 12.0 | 5.6 | 73.5% | 132 |
| 2020 | 88.3 | 0.0 | 26.8 | 34.4 | 0.3 | 12.8 | 5.1 | 65.6% | 167 |
| 2019 | 92.7 | 0.0 | 25.5 | 43.5 | 0.3 | 9.8 | 4.3 | 67.9% | 157 |
| 2018 | 73.9 | 0.0 | 24.0 | 28.6 | 0.3 | 7.6 | 3.9 | 62.0% | 187 |
| 2017 | 85.3 | 0.0 | 23.0 | 42.2 | 0.3 | 6.5 | 3.3 | 68.0% | 160 |
| 2016 | 84.3 | 0.4 | 22.1 | 43.5 | 0.4 | 5.4 | 3.1 | 68.5% | 159 |
| 2015 | 68.4 | 2.1 | 22.0 | 26.1 | 0.3 | 5.6 | 3.1 | 59.2% | 216 |
| 2014 | 71.2 | 2.1 | 19.3 | 33.7 | 0.3 | 4.6 | 2.9 | 64.5% | 190 |
| 2013 | 82.0 | 3.0 | 20.8 | 42.6 | 0.4 | 3.7 | 2.6 | 66.3% | 184 |
| 2012 | 81.5 | 3.4 | 23.6 | 40.3 | 0.4 | 2.8 | 2.2 | 62.3% | 203 |
| 2011 | 89.3 | 3.5 | 25.4 | 48.2 | 0.2 | 2.3 | 1.2 | 63.4% | 193 |
| 2010 | 93.0 | 4.2 | 30.8 | 47.9 | 0.3 | 1.3 | 0.6 | 58.6% | 213 |
| 2009 | 89.8 | 5.2 | 29.3 | 47.2 | 0.3 | 1.0 | 0.2 | 58.7% | 217 |
| 2008 | 83.1 | 5.6 | 24.1 | 45.6 | 0.4 | 0.6 | 0.0 | 60.2% | 218 |
| 2007 | 86.8 | 6.5 | 24.7 | 48.2 | 0.4 | 0.5 | 0.0 | 59.6% | 224 |
| 2006 | 83.3 | 6.9 | 22.0 | 46.7 | 0.4 | 0.4 | 0.0 | 59.5% | 232 |
| 2005 | 84.4 | 8.2 | 21.5 | 47.6 | 0.3 | 0.2 | 0.0 | 58.9% | 241 |
| 2004 | 82.9 | 9.2 | 20.0 | 47.3 | 0.3 | 0.1 | 0.0 | 58.9% | 248 |
| 2003 | 83.6 | 9.6 | 21.6 | 47.4 | 0.3 | 0.1 | 0.0 | 58.1% | 249 |
| 2002 | 80.9 | 10.0 | 17.9 | 47.4 | 0.4 | 0.1 | 0.0 | 59.9% | 250 |
| 2001 | 78.6 | 9.9 | 15.8 | 46.4 | 0.4 | 0.0 | 0.0 | 60.3% | 253 |
| 2000 | 82.8 | 12.9 | 16.0 | 48.2 | 0.5 | 0.0 | 0.0 | 59.4% | 270 |
Frequently Asked Questions - Belgium Power Grid
How much electricity does Belgium generate and what is its #1 power source?
In 2025, Belgium generated 66.88 TWh of electricity (0.21% of global output). Its largest single generation source was Nuclear at 24.11 TWh (36.0% of the national grid mix).
What share of Belgium's electricity comes from clean and renewable sources?
Low-carbon sources (nuclear plus renewables) supplied 79.9% of Belgium's electricity in 2025, with renewables accounting for 43.8% and wind plus solar contributing 35.7%. Fossil fuels accounted for 20.1% of total generation.
What is the carbon intensity of Belgium's electricity grid?
In 2025, Belgium's power sector carbon intensity was 109.3 gCO2/kWh, with total power sector emissions of 7.31 million metric tons of CO2.