Primary energy use by source in Ireland
Ireland: Primary energy use by source was 3.3 terawatt-hours in 2025. ▼ Falling
Primary energy use by source in Ireland, 1965–2025
Source: Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
Ireland recorded 3.3 terawatt-hours for primary energy use by source in 2025. That is the lowest value across all 61 years on record.
Compared with earlier readings it is down 30.8% on the previous year and down 87.1% over ten years.
Over the whole period, primary energy use by source in Ireland peaked at 53.86 terawatt-hours in 1968 and was at its lowest, 3.3 terawatt-hours, in 2025.
That places Ireland 59th out of 78 regions with data for 2025, putting it in the bottom quarter.
The long-run direction has been consistently falling across the 61 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 45.4 terawatt-hours | 36.36 terawatt-hours | 53.86 terawatt-hours | 5 |
| 1970s | 22.08 terawatt-hours | 19.78 terawatt-hours | 25 terawatt-hours | 10 |
| 1980s | 30.58 terawatt-hours | 21.91 terawatt-hours | 41.75 terawatt-hours | 10 |
| 1990s | 34.94 terawatt-hours | 28.57 terawatt-hours | 40.26 terawatt-hours | 10 |
| 2000s | 28.57 terawatt-hours | 23.2 terawatt-hours | 31.86 terawatt-hours | 10 |
| 2010s | 21.83 terawatt-hours | 11.74 terawatt-hours | 26.3 terawatt-hours | 10 |
| 2020s | 8.24 terawatt-hours | 3.3 terawatt-hours | 13.72 terawatt-hours | 6 |
Countries ranked near Ireland
More energy & mining data for Ireland
- Fuel imports 6.2% (2024)
- Ores and metals imports 1.0% (2024)
- Ores and metals exports 0.6% (2024)
- Gas production 11.53 terawatt-hours (2024)
- Fossil fuel production per person, by fuel 2,195 kilowatt-hours per person (2024)
- Fossil fuel production by fuel 11.53 terawatt-hours (2024)
- Gas production per person 2,195 kilowatt-hours per person (2024)
- Fuel exports 0.4% (2024)
- Electric power transmission and distribution losses 8.2% (2024)
- Share of dietary energy supply from carbohydrates vs. GDP per capita 50.7% (2023)
Frequently asked questions
- What is primary energy use by source in Ireland?
- Primary energy use by source in Ireland was 3.3 terawatt-hours in 2025, according to Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data.
- What is the highest primary energy use by source recorded in Ireland?
- The highest recorded value was 53.86 terawatt-hours in 1968.
- What is the lowest primary energy use by source recorded in Ireland?
- The lowest recorded value was 3.3 terawatt-hours in 2025.
- How does Ireland rank for primary energy use by source?
- Ireland ranks 59th out of 78 regions with data for 2025.
- Is primary energy use by source rising or falling in Ireland?
- Over the last ten years it is down 87.1%. The long-run trend across the full record is falling.
- Where does this Ireland data come from?
- The figures come from Energy Institute - Statistical Review of World Energy (2026); Smil (2017) – with major processing by Our World in Data, published as part of Primary energy use by source. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 61 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Measured in terawatt-hours of total energy supply.