Installed solar energy capacity in Belgium
Belgium: Installed solar energy capacity was 10.4 gigawatts in 2025. ◆ Volatile
Installed solar energy capacity in Belgium, 2002–2025
Source: IRENA (2026) – processed by Our World in Data. Measured in gigawatts.
Analysis
Belgium recorded 10.4 gigawatts for installed solar energy capacity in 2025. That is the highest value across all 24 years on record.
The figure is up 7.8% on the previous year and up 234.5% over ten years.
Over the whole period, installed solar energy capacity in Belgium peaked at 10.4 gigawatts in 2025 and was at its lowest, 0.001 gigawatts, in 2002.
Belgium ranks 23rd of 218 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Installed solar energy capacity in Belgium, year by year
| Year | gigawatts | Change |
|---|---|---|
| 2002 | 0.001 gigawatts | — |
| 2003 | 0.001 gigawatts | +0.0% |
| 2004 | 0.001 gigawatts | +0.0% |
| 2005 | 0.002 gigawatts | +100.0% |
| 2006 | 0.002 gigawatts | +0.0% |
| 2007 | 0.02 gigawatts | +900.0% |
| 2008 | 0.062 gigawatts | +210.0% |
| 2009 | 0.386 gigawatts | +522.6% |
| 2010 | 0.8402 gigawatts | +117.7% |
| 2011 | 1.86 gigawatts | +122.0% |
| 2012 | 2.6 gigawatts | +39.2% |
| 2013 | 2.86 gigawatts | +10.3% |
| 2014 | 2.98 gigawatts | +3.9% |
| 2015 | 3.11 gigawatts | +4.4% |
| 2016 | 3.29 gigawatts | +5.9% |
| 2017 | 3.6 gigawatts | +9.4% |
| 2018 | 3.96 gigawatts | +10.1% |
| 2019 | 4.52 gigawatts | +14.1% |
| 2020 | 5.45 gigawatts | +20.6% |
| 2021 | 5.93 gigawatts | +8.8% |
| 2022 | 6.78 gigawatts | +14.3% |
| 2023 | 8.36 gigawatts | +23.3% |
| 2024 | 9.64 gigawatts | +15.3% |
| 2025 | 10.4 gigawatts | +7.8% |
Belgium compared with similar countries
- Belgium's 10.4 gigawatts is above the median for high income countries, which is 1.01 gigawatts, 10.3× the median. (76 countries reporting)
- Belgium's 10.4 gigawatts is above the median for Europe & Central Asia, which is 1.57 gigawatts, 6.6× the median. (49 countries reporting)
Biggest year-on-year movements
Years where Installed solar energy capacity in Belgium changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2007 | +900.0% | 0.002 gigawatts | 0.02 gigawatts |
| 2009 | +522.6% | 0.062 gigawatts | 0.386 gigawatts |
| 2008 | +210.0% | 0.02 gigawatts | 0.062 gigawatts |
| 2011 | +122.0% | 0.8402 gigawatts | 1.86 gigawatts |
| 2010 | +117.7% | 0.386 gigawatts | 0.8402 gigawatts |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 2000s | 0.0594 gigawatts | 0.001 gigawatts | 0.386 gigawatts | 8 |
| 2010s | 2.96 gigawatts | 0.8402 gigawatts | 4.52 gigawatts | 10 |
| 2020s | 7.76 gigawatts | 5.45 gigawatts | 10.4 gigawatts | 6 |
Countries ranked near Belgium
- 20 Saudi Arabia 11.93 gigawatts compare
- 21 South Africa 11.26 gigawatts compare
- 22 Greece 11.08 gigawatts compare
- 24 Austria 10.3 gigawatts compare
- 25 Switzerland 8.79 gigawatts compare
- 26 Hungary 8.18 gigawatts compare
More energy & mining data for Belgium
- Fossil fuel consumption by fuel, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, annual growth rate -2.47 % change on previous year (2025)
- Coal consumption, per capita 0 terawatt-hours per person (2025)
- Coal consumption, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per unit of GDP 0 terawatt-hours per US$ of GDP (2025)
- Primary energy use, per capita 0.0001 terawatt-hours per person (2025)
- Coal production, per capita 0 terawatt-hours per person (2024)
- Coal production, per unit of GDP 0 terawatt-hours per US$ of GDP (2024)
- Fossil fuel consumption by fuel, per capita 0 terawatt-hours per person (2025)
- Fuel imports 16.0% (2024)
Frequently asked questions
- What is installed solar energy capacity in Belgium?
- Installed solar energy capacity in Belgium was 10.4 gigawatts in 2025, according to IRENA (2026) – processed by Our World in Data.
- What is the highest installed solar energy capacity recorded in Belgium?
- The highest recorded value was 10.4 gigawatts in 2025.
- What is the lowest installed solar energy capacity recorded in Belgium?
- The lowest recorded value was 0.001 gigawatts in 2002.
- How does Belgium rank for installed solar energy capacity?
- Belgium ranks 23rd out of 218 countries with data for 2025.
- Is installed solar energy capacity rising or falling in Belgium?
- Over the last ten years it is up 234.5%. The long-run trend across the full record is volatile.
- Where does this Belgium data come from?
- The figures come from IRENA (2026) – processed by Our World in Data, published as part of Installed solar energy capacity. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 24 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Total solar (on- and off-grid) electricity installed capacity, measured in gigawatts. This includes solar photovoltaic and concentrated solar power.