Year-to-year change in primary energy from fossil fuels vs. in Portugal
Portugal: Year-to-year change in primary energy from fossil fuels vs. was -0.5683 terawatt-hours in 2025. ◆ Volatile
Latest (2025)
-0.5683 terawatt-hours
Change on year
down 109.0%
World rank
62nd
of 80 countries
All-time high
12.43 terawatt-hours
in 2010
All-time low
-9.18 terawatt-hours
in 2017
Years of data
60
1966–2025
Year-to-year change in primary energy from fossil fuels vs. low-carbon energy in Portugal, 1966–2025
Source: Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data. Measured in terawatt-hours.
Analysis
The most recent figure for year-to-year change in primary energy from fossil fuels vs. low-carbon energy in Portugal is -0.5683 terawatt-hours, measured in 2025.
That represents a change of down 109.0% on the previous year and up 90.9% over ten years.
Over the whole period, year-to-year change in primary energy from fossil fuels vs. low-carbon energy in Portugal peaked at 12.43 terawatt-hours in 2010 and was at its lowest, -9.18 terawatt-hours, in 2017.
That places Portugal 62nd out of 80 countries with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Year-to-year change in primary energy from fossil fuels vs. in Portugal, year by year
| Year | terawatt-hours | Change |
|---|---|---|
| 1966 | 1.28 terawatt-hours | — |
| 1967 | 0.1808 terawatt-hours | -85.9% |
| 1968 | -0.1839 terawatt-hours | -201.7% |
| 1969 | 1.28 terawatt-hours | -796.3% |
| 1970 | -0.7918 terawatt-hours | -161.8% |
| 1971 | 0.2357 terawatt-hours | -129.8% |
| 1972 | 0.8251 terawatt-hours | +250.1% |
| 1973 | 0.5026 terawatt-hours | -39.1% |
| 1974 | 0.4424 terawatt-hours | -12.0% |
| 1975 | -1.25 terawatt-hours | -382.2% |
| 1976 | -1.64 terawatt-hours | +31.5% |
| 1977 | 5.19 terawatt-hours | -416.3% |
| 1978 | 0.8389 terawatt-hours | -83.8% |
| 1979 | 0.4808 terawatt-hours | -42.7% |
| 1980 | -3 terawatt-hours | -724.6% |
| 1981 | -3.03 terawatt-hours | +0.9% |
| 1982 | 2.03 terawatt-hours | -167.0% |
| 1983 | 1.26 terawatt-hours | -37.8% |
| 1984 | 1.66 terawatt-hours | +31.7% |
| 1985 | 1.47 terawatt-hours | -11.9% |
| 1986 | -2.02 terawatt-hours | -237.7% |
| 1987 | 0.6563 terawatt-hours | -132.5% |
| 1988 | 3.21 terawatt-hours | +388.4% |
| 1989 | -6.4 terawatt-hours | -299.7% |
| 1990 | 3.46 terawatt-hours | -154.1% |
| 1991 | 0.2566 terawatt-hours | -92.6% |
| 1992 | -4.17 terawatt-hours | -1725.0% |
| 1993 | 3.95 terawatt-hours | -194.6% |
| 1994 | 2.52 terawatt-hours | -36.2% |
| 1995 | -2.06 terawatt-hours | -182.0% |
| 1996 | 6.41 terawatt-hours | -410.6% |
| 1997 | -1.39 terawatt-hours | -121.6% |
| 1998 | -0.0448 terawatt-hours | -96.8% |
| 1999 | -5.03 terawatt-hours | +11116.2% |
| 2000 | 4.5 terawatt-hours | -189.5% |
| 2001 | 3.2 terawatt-hours | -28.9% |
| 2002 | -5.83 terawatt-hours | -282.3% |
| 2003 | 7.76 terawatt-hours | -233.1% |
| 2004 | -5.13 terawatt-hours | -166.1% |
| 2005 | -3.99 terawatt-hours | -22.1% |
| 2006 | 8.47 terawatt-hours | -312.0% |
| 2007 | 2.68 terawatt-hours | -68.4% |
| 2008 | -1.64 terawatt-hours | -161.1% |
| 2009 | 5.07 terawatt-hours | -409.9% |
| 2010 | 12.43 terawatt-hours | +145.3% |
| 2011 | -3.73 terawatt-hours | -130.0% |
| 2012 | -5.6 terawatt-hours | +50.2% |
| 2013 | 10.73 terawatt-hours | -291.6% |
| 2014 | 2.18 terawatt-hours | -79.6% |
| 2015 | -6.23 terawatt-hours | -385.5% |
| 2016 | 6.62 terawatt-hours | -206.3% |
| 2017 | -9.18 terawatt-hours | -238.6% |
| 2018 | 7.13 terawatt-hours | -177.6% |
| 2019 | -1.81 terawatt-hours | -125.4% |
| 2020 | 3.41 terawatt-hours | -288.6% |
| 2021 | 2.46 terawatt-hours | -27.9% |
| 2022 | -3.78 terawatt-hours | -253.8% |
| 2023 | 6.47 terawatt-hours | -271.2% |
| 2024 | 6.29 terawatt-hours | -2.8% |
| 2025 | -0.5683 terawatt-hours | -109.0% |
Portugal compared with similar countries
- Portugal's -0.5683 terawatt-hours is below the median for high income countries, which is 0.5633 terawatt-hours. (47 countries reporting)
- Portugal's -0.5683 terawatt-hours is below the median for Europe & Central Asia, which is 0.1847 terawatt-hours. (39 countries reporting)
Biggest year-on-year movements
Years where Year-to-year change in primary energy from fossil fuels vs. in Portugal changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1999 | -11116.2% | -0.0448 terawatt-hours | -5.03 terawatt-hours |
| 1992 | -1725.0% | 0.2566 terawatt-hours | -4.17 terawatt-hours |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 0.6393 terawatt-hours | -0.1839 terawatt-hours | 1.28 terawatt-hours | 4 |
| 1970s | 0.4835 terawatt-hours | -1.64 terawatt-hours | 5.19 terawatt-hours | 10 |
| 1980s | -0.4171 terawatt-hours | -6.4 terawatt-hours | 3.21 terawatt-hours | 10 |
| 1990s | 0.3895 terawatt-hours | -5.03 terawatt-hours | 6.41 terawatt-hours | 10 |
| 2000s | 1.51 terawatt-hours | -5.83 terawatt-hours | 8.47 terawatt-hours | 10 |
| 2010s | 1.25 terawatt-hours | -9.18 terawatt-hours | 12.43 terawatt-hours | 10 |
| 2020s | 2.38 terawatt-hours | -3.78 terawatt-hours | 6.47 terawatt-hours | 6 |
Countries ranked near Portugal
More climate change data for Portugal
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 93.31 million kg (2050)
- Emissions from livestock — Emissions (CO2eq) 5,543 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 1,218 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 4,325 kt (2050)
- Emissions from livestock — Emissions 4.6 kt (2050)
- Emissions from livestock — Emissions 154.46 kt (2050)
- Emissions from crops — Emissions (CO2eq) 950.54 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 585.76 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 364.79 kt (2050)
- Emissions from crops — Emissions 2.21 kt (2050)
Frequently asked questions
- What is year-to-year change in primary energy from fossil fuels vs. low-carbon energy in Portugal?
- Year-to-year change in primary energy from fossil fuels vs. low-carbon energy in Portugal was -0.5683 terawatt-hours in 2025, according to Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data.
- What is the highest year-to-year change in primary energy from fossil fuels vs. low-carbon energy recorded in Portugal?
- The highest recorded value was 12.43 terawatt-hours in 2010.
- What is the lowest year-to-year change in primary energy from fossil fuels vs. low-carbon energy recorded in Portugal?
- The lowest recorded value was -9.18 terawatt-hours in 2017.
- How does Portugal rank for year-to-year change in primary energy from fossil fuels vs. low-carbon energy?
- Portugal ranks 62nd out of 80 countries with data for 2025.
- Is year-to-year change in primary energy from fossil fuels vs. low-carbon energy rising or falling in Portugal?
- Over the last ten years it is up 90.9%. The long-run trend across the full record is volatile.
- Where does this Portugal data come from?
- The figures come from Energy Institute – Statistical Review of World Energy (2026) – with major processing by Our World in Data, published as part of Year-to-year change in primary energy from fossil fuels vs. low-carbon energy. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 60 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Change in total energy supply relative to the previous year, measured in terawatt-hours.