Belgium Electricity: Generation Mix, Demand and Emissions
Belgium generated 72.0 TWh of electricity in 2025, according to Ember. Nuclear was the largest source at 33.5%, followed by gas (25.9%) and wind (18.7%). Demand was 85.4 TWh and each kWh generated emitted 126 gCO2/kWh. These are annual statistics for 2025, with monthly figures through August 2026; they are compiled from national sources and are not real time.
Key Facts
- Belgium generated 72.0 TWh of electricity in 2025.
- Nuclear supplied 33.5% of Belgium's electricity in 2025.
- Gas supplied 25.9% of Belgium's electricity in 2025.
- Wind supplied 18.7% of Belgium's electricity in 2025.
- Low carbon sources (nuclear and renewables) supplied 74.6% of Belgium's generation in 2025.
- The carbon intensity of Belgium's electricity was 126 gCO2/kWh in 2025.
- Belgium's carbon intensity in 2025 was 60% lower than in 1990, when it was 313 gCO2/kWh.
- Belgium had the 38th highest electricity demand among the 93 countries with Ember data for 2025.
Key Figures, 2025
| Measure | Value | As of / source |
|---|---|---|
| Total generation | 72.0 TWh | 2025 · Ember |
| Electricity demand | 85.4 TWh | 2025 · Ember |
| Demand per person | 6.83 MWh | 2025 · Ember |
| Net imports | 13.4 TWh | 2025 · Ember |
| Carbon intensity | 126 gCO2/kWh | 2025 · Ember |
| Power sector emissions | 9.06 MtCO2 | 2025 · Ember |
| Demand rank (countries with 2025 data) | 38 of 93 | 2025 · Ember |
Generation Mix, 2025
Year by Year
Ember annual statistics, 1990 to 2025| Year | Nuclear | Gas | Wind | Solar | Bioenergy |
|---|---|---|---|---|---|
| 1990 | 42.7 TWh | 5.41 TWh | 10.0 GWh | 0 TWh | 280 GWh |
| 1991 | 42.9 TWh | 6.22 TWh | 10.0 GWh | 0 TWh | 300 GWh |
| 1992 | 43.5 TWh | 6.67 TWh | 10.0 GWh | 0 TWh | 270 GWh |
| 1993 | 41.9 TWh | 6.81 TWh | 10.0 GWh | 0 TWh | 250 GWh |
| 1994 | 40.6 TWh | 8.27 TWh | 10.0 GWh | 0 TWh | 250 GWh |
| 1995 | 41.4 TWh | 10.2 TWh | 10.0 GWh | 0 TWh | 320 GWh |
| 1996 | 43.3 TWh | 11.0 TWh | 10.0 GWh | 0 TWh | 310 GWh |
| 1997 | 47.4 TWh | 11.5 TWh | 10.0 GWh | 0 TWh | 280 GWh |
| 1998 | 46.2 TWh | 15.0 TWh | 10.0 GWh | 0 TWh | 360 GWh |
| 1999 | 49.0 TWh | 19.2 TWh | 10.0 GWh | 0 TWh | 500 GWh |
| 2000 | 48.2 TWh | 16.0 TWh | 20.0 GWh | 0 TWh | 570 GWh |
| 2001 | 46.4 TWh | 15.8 TWh | 40.0 GWh | 0 TWh | 600 GWh |
| 2002 | 47.4 TWh | 17.9 TWh | 60.0 GWh | 0 TWh | 720 GWh |
| 2003 | 47.4 TWh | 21.6 TWh | 90.0 GWh | 0 TWh | 860 GWh |
| 2004 | 47.3 TWh | 20.0 TWh | 140 GWh | 0 TWh | 1.04 TWh |
| 2005 | 47.6 TWh | 21.5 TWh | 230 GWh | 0 TWh | 1.59 TWh |
| 2006 | 46.7 TWh | 22.0 TWh | 370 GWh | 0 TWh | 2.23 TWh |
| 2007 | 48.2 TWh | 24.7 TWh | 490 GWh | 10.0 GWh | 2.60 TWh |
| 2008 | 45.6 TWh | 24.1 TWh | 640 GWh | 40.0 GWh | 3.33 TWh |
| 2009 | 47.2 TWh | 29.3 TWh | 990 GWh | 170 GWh | 3.95 TWh |
| 2010 | 47.9 TWh | 30.8 TWh | 1.30 TWh | 580 GWh | 4.38 TWh |
| 2011 | 48.2 TWh | 25.4 TWh | 2.32 TWh | 1.21 TWh | 4.63 TWh |
| 2012 | 40.3 TWh | 23.6 TWh | 2.76 TWh | 2.15 TWh | 5.24 TWh |
| 2013 | 42.6 TWh | 20.8 TWh | 3.67 TWh | 2.64 TWh | 5.03 TWh |
| 2014 | 33.7 TWh | 19.3 TWh | 4.62 TWh | 2.89 TWh | 4.41 TWh |
| 2015 | 26.1 TWh | 22.0 TWh | 5.57 TWh | 3.06 TWh | 5.49 TWh |
| 2016 | 43.5 TWh | 22.1 TWh | 5.42 TWh | 3.10 TWh | 5.36 TWh |
| 2017 | 42.2 TWh | 23.0 TWh | 6.52 TWh | 3.31 TWh | 5.70 TWh |
| 2018 | 28.6 TWh | 24.0 TWh | 7.57 TWh | 3.90 TWh | 5.40 TWh |
| 2019 | 43.5 TWh | 25.5 TWh | 9.75 TWh | 4.25 TWh | 5.15 TWh |
| 2020 | 34.4 TWh | 26.8 TWh | 12.8 TWh | 5.11 TWh | 5.26 TWh |
| 2021 | 50.3 TWh | 22.5 TWh | 12.0 TWh | 5.62 TWh | 4.71 TWh |
| 2022 | 43.9 TWh | 22.0 TWh | 12.4 TWh | 6.88 TWh | 4.93 TWh |
| 2023 | 32.9 TWh | 18.3 TWh | 15.4 TWh | 7.83 TWh | 3.79 TWh |
| 2024 | 31.3 TWh | 14.2 TWh | 14.0 TWh | 8.56 TWh | 3.61 TWh |
| 2025 | 24.2 TWh | 18.6 TWh | 13.4 TWh | 10.4 TWh | 5.19 TWh |
| Year | Generation | Demand | Carbon intensity |
|---|---|---|---|
| 2025 | 72.0 TWh | 85.4 TWh | 126 gCO2/kWh |
| 2024 | 76.0 TWh | 86.3 TWh | 127 gCO2/kWh |
| 2023 | 82.1 TWh | 83.8 TWh | 135 gCO2/kWh |
| 2022 | 94.3 TWh | 86.8 TWh | 139 gCO2/kWh |
| 2021 | 99.4 TWh | 91.5 TWh | 132 gCO2/kWh |
| 2020 | 88.3 TWh | 88.0 TWh | 167 gCO2/kWh |
| 2019 | 92.7 TWh | 90.8 TWh | 157 gCO2/kWh |
| 2018 | 73.9 TWh | 91.2 TWh | 187 gCO2/kWh |
| 2017 | 85.3 TWh | 91.4 TWh | 160 gCO2/kWh |
| 2016 | 84.3 TWh | 90.5 TWh | 159 gCO2/kWh |
Full year by year history for Belgium, 1990 to 2025
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of 2025.
Month by Month
Ember monthly statistics through August 2026| Month | Demand | Generation |
|---|---|---|
| 2024-09 | 6.57 TWh | 5.21 TWh |
| 2024-10 | 7.01 TWh | 5.20 TWh |
| 2024-11 | 7.15 TWh | 5.79 TWh |
| 2024-12 | 7.34 TWh | 6.46 TWh |
| 2025-01 | 7.93 TWh | 6.50 TWh |
| 2025-02 | 7.11 TWh | 6.32 TWh |
| 2025-03 | 6.96 TWh | 6.04 TWh |
| 2025-04 | 6.36 TWh | 5.28 TWh |
| 2025-05 | 6.35 TWh | 5.40 TWh |
| 2025-06 | 6.54 TWh | 5.65 TWh |
| 2025-07 | 6.61 TWh | 5.31 TWh |
| 2025-08 | 6.41 TWh | 5.28 TWh |
| 2025-09 | 6.51 TWh | 5.28 TWh |
| 2025-10 | 6.94 TWh | 5.41 TWh |
| 2025-11 | 6.93 TWh | 5.68 TWh |
| 2025-12 | 7.44 TWh | 5.96 TWh |
| 2026-01 | 8.00 TWh | 6.57 TWh |
| 2026-02 | 7.03 TWh | 5.28 TWh |
| 2026-03 | 7.37 TWh | 5.54 TWh |
| 2026-04 | 6.79 TWh | 4.22 TWh |
| 2026-05 | 6.76 TWh | 4.10 TWh |
| 2026-06 | 6.76 TWh | 4.43 TWh |
| 2026-07 | 6.62 TWh | 4.42 TWh |
| 2026-08 | 6.62 TWh | 4.20 TWh |
Source: Ember (ember-energy.org), licensed under CC BY 4.0. Data as of August 2026.
Belgium Electricity FAQ
What is the main source of electricity in Belgium?
Nuclear was the largest source of electricity in Belgium in 2025, supplying 33.5% of generation, followed by gas (25.9%) and wind (18.7%). Figures are Ember annual statistics.
How much electricity does Belgium use?
Belgium used 85.4 TWh of electricity in 2025, about 6.83 MWh per person.
How clean is Belgium's electricity?
Generating a kilowatt hour of electricity in Belgium emitted 126 gCO2/kWh in 2025, and low carbon sources supplied 74.6% of generation. That is 73% below the world average of 459 gCO2/kWh.
Does Belgium import electricity?
Yes. Belgium imported 13.4 TWh more electricity than it exported in 2025.