Installed capacity — Ireland
What Ireland could produce with everything running at once: installed capacity by source, as reported for 2024, next to how much has actually run.
- Natural gas 45.7%
- Onshore wind 23.6%
- Oil 12.5%
- Hard coal 10.8%
- Other sources 7.4%
| Source | Capacity (MW) | Of total | Against 2023 |
|---|---|---|---|
| Natural gas | 45.7% | 0 | |
| Onshore wind | 23.6% | +16 | |
| Oil | 12.5% | 0 | |
| Hard coal | 10.8% | 0 | |
| Other sources | 7.4% | −7 |
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 12,712 MW installed, the most that ever ran at one moment was 11,616 MW — 91% of the fleet, on 30/11/2025, 17:30:00.
- Gas 5,216/ 7,402 MW 70%
- Wind 8,464/ 3,000 MW 282%
- Coal 472/ 1,369 MW 34%
- Other 539/ 941 MW 57%
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 2024.
- 2024 12,712MW +9
- 2023 12,703MW +170
- 2022 12,533MW +5
- 2021 12,528MW +28
- 2020 12,500MW +6
- 2019 12,494MW −1
- 2018 12,495MW +368
- 2017 12,127MW +1,071
- 2016 11,057MW +67
- 2015 10,990MW —
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.