Installed capacity — Belgium
What Belgium could produce with everything running at once: installed capacity by source, as reported for 2026, next to how much has actually run.
| Source | Capacity (MW) | Of total |
|---|---|---|
| Solar | 11,683+987 | 35.7% |
| Natural gas | 8,402+369 | 25.7% |
| Onshore wind | 3,589+412 | 11.0% |
| Offshore wind | 2,262 | 6.9% |
| Nuclear | 2,056−1,873 | 6.3% |
| Other sources | 1,556+833 | 4.8% |
| Pumped-storage hydro | 1,310+2 | 4.0% |
| Biomass | 846+115 | 2.6% |
| Oil | 477−112 | 1.5% |
| Waste | 394+65 | 1.2% |
| Run-of-river hydro | 127−18 | 0.4% |
How much ran at once
The highest output delivered at a single moment over the past twelve months, by source group, next to the installed capacity.
Of 32,702 MW installed, the most that ever ran at one moment was 13,300 MW — 41% of the fleet, on 12/03/2026, 11:00:00.
- Solar 8,537/ 11,683 MW 73%
- Gas 6,757/ 8,880 MW 76%
- Wind 5,022/ 5,851 MW 86%
- Nuclear 2,526/ 2,056 MW 123%
- Other 1,051/ 1,950 MW 54%
- Hydro 1,079/ 1,436 MW 75%
- Biomass 520/ 846 MW 61%
The peak is read from our own generation archive, not estimated: it is a lower bound on what the fleet can do. A small ratio means the group's sources never all ran together — reservoir hydro starts at peak demand, thermal plants sit idle when they are not called. A ratio above one hundred means the declared capacity has fallen behind: the figure is declared at the start of the year while new units come online during it. Groups are compared here rather than individual source types: the same source can report capacity under lignite and generation under coal, and at group level the two meet.
How it changed, year by year
Total installed capacity, from 2015 to 2026.
- 2026 32,702MW +780
- 2025 31,922MW +3,807
- 2024 28,115MW +1,315
- 2023 26,799MW +1,215
- 2022 25,584MW −123
- 2021 25,707MW +1,650
- 2020 24,057MW +1,584
- 2019 22,473MW +1,208
- 2018 21,265MW +622
- 2017 20,643MW +716
- 2016 19,927MW −177
- 2015 20,104MW —
The figures come from the ENTSO-E Transparency Platform: installed generation capacity by production type. The year is the one the operator reports for, not the year the figure was published.
Two things are not here: the number of installations per source, and batteries as a source of their own. The aggregated report does not carry them, and batteries fall under “other”. They appear the day the source publishes them separately.