Primary energy use by source in OECD (EI)
OECD (EI): Primary energy use by source was 1,228 terawatt-hours in 2025. ◆ Volatile
Primary energy use by source in OECD (EI), 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
OECD (EI) recorded 1,228 terawatt-hours for primary energy use by source in 2025. That is the highest value across all 61 years on record.
That represents a change of up 2.0% on the previous year and up 118.9% over ten years.
Over the whole period, primary energy use by source in OECD (EI) peaked at 1,228 terawatt-hours in 2025 and was at its lowest, 0 terawatt-hours, in 1965.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0 terawatt-hours | 0 terawatt-hours | 0 terawatt-hours | 5 |
| 1970s | 0.0009 terawatt-hours | 0 terawatt-hours | 0.006 terawatt-hours | 10 |
| 1980s | 0.3497 terawatt-hours | 0.0105 terawatt-hours | 2.65 terawatt-hours | 10 |
| 1990s | 8.38 terawatt-hours | 3.6 terawatt-hours | 19.19 terawatt-hours | 10 |
| 2000s | 103.34 terawatt-hours | 28.93 terawatt-hours | 228.2 terawatt-hours | 10 |
| 2010s | 536.61 terawatt-hours | 269.99 terawatt-hours | 834.13 terawatt-hours | 10 |
| 2020s | 1,099 terawatt-hours | 939.49 terawatt-hours | 1,228 terawatt-hours | 6 |
Countries ranked near OECD (EI)
More energy & mining data for OECD (EI)
- Fossil fuel production by fuel 16,830 terawatt-hours (2025)
- Gas production 16,830 terawatt-hours (2025)
- Share of electricity generation from fossil fuels 47.5% (2025)
- Primary energy from fossil fuels, nuclear, and renewables 9.3% (2025)
- Electricity generation from nuclear 1,879 terawatt-hours (2025)
- Annual percentage change in primary energy use 0.8% (2025)
- Coal production 7,718 terawatt-hours (2025)
- Primary energy use 61,079 terawatt-hours (2025)
- Share of primary energy from nuclear 9.3% (2025)
- Annual change in primary energy use 478.07 terawatt-hours (2025)
Frequently asked questions
- What is primary energy use by source in OECD (EI)?
- Primary energy use by source in OECD (EI) was 1,228 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 OECD (EI)?
- The highest recorded value was 1,228 terawatt-hours in 2025.
- What is the lowest primary energy use by source recorded in OECD (EI)?
- The lowest recorded value was 0 terawatt-hours in 1965.
- How does OECD (EI) rank for primary energy use by source?
- OECD (EI) ranks 1st out of 3 groups with data for 2025.
- Is primary energy use by source rising or falling in OECD (EI)?
- Over the last ten years it is up 118.9%. The long-run trend across the full record is volatile.
- Where does this OECD (EI) 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.