Installed capacity — Romania
What Romania could produce with everything running at once: installed capacity by source, as reported for 2026, next to how much has actually run.
- Hydro reservoir 19.0%
- Onshore wind 17.2%
- Solar 15.6%
- Run-of-river hydro 15.6%
- Natural gas 12.7%
- Lignite 8.7%
- Nuclear 7.3%
- Other sources 2.8%
- Biomass 0.7%
- Hard coal 0.5%
| Source | Capacity (MW) | Of total | Against 2025 |
|---|---|---|---|
| Hydro reservoir | 19.0% | +52 | |
| Onshore wind | 17.2% | +41 | |
| Solar | 15.6% | +1,200 | |
| Run-of-river hydro | 15.6% | 0 | |
| Natural gas | 12.7% | +96 | |
| Lignite | 8.7% | −470 | |
| Nuclear | 7.3% | 0 | |
| Other sources | 2.8% | +356 | |
| Biomass | 0.7% | 0 | |
| Hard coal | 0.5% | −45 |
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 17,874 MW installed, the most that ever ran at one moment was 8,910 MW — 50% of the fleet, on 05/12/2025, 17:15:00.
- Hydro 3,279/ 6,184 MW 53%
- Wind 3,054/ 3,068 MW 100%
- Solar 3,395/ 2,788 MW 122%
- Gas 2,626/ 2,275 MW 115%
- Coal 1,544/ 1,647 MW 94%
- Nuclear 1,473/ 1,300 MW 113%
- Other 683/ 493 MW 139%
- Biomass 112/ 119 MW 94%
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 17,874MW +1,230
- 2025 16,644MW +689
- 2024 15,955MW −402
- 2023 16,357MW −204
- 2022 16,561MW −745
- 2021 17,306MW −1,155
- 2020 18,461MW −376
- 2019 18,837MW −4,214
- 2018 23,051MW +86
- 2017 22,965MW +6
- 2016 22,959MW +369
- 2015 22,590MW —
The figures come from the ENTSO-E Transparency Platform, installed generation capacity aggregated by production type. The year is the one the transmission 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.