Country energy profile · Spain · 2025
What percentage of Spain’s energy comes from fossil fuels?
In 2025, fossil fuels supplied 74.4% of Spain’s total energy. Oil is its largest single source. That compares with a world average of 86.2%.
Oil 51.1%, natural gas 21.7%, coal 1.7% · non-fossil 25.6%.
Source: Energy Institute Statistical Review of World Energy 2025 data. Site updated August 13, 2026.
Spain energy mix, 2025
Share of total primary energy by source
Key facts
| Fossil-fuel share | 74.4% |
| World average | 86.2% |
| Main fossil fuel | Oil |
| Change since 2010 | -5.4 pts |
| Fossil energy per person | 80.8 GJ |
| CO₂ per person | 5.3 t |
| Fossil share of electricity | 24.9% |
| World rank, fossil energy used | #25 of 80 |
Is Spain getting less dependent on fossil fuels?
Fossil-fuel share of total energy since 1965, with the absolute amount of fossil fuel used. Share and volume can move in opposite directions.
Fossil share vs. consumption
Left axis: % of primary energy · Right axis: exajoules (EJ)
Oil vs. gas vs. coal in Spain
Consumption by fuel, 1965–2025
Exajoules (EJ) per year
Total energy vs. electricity
Spain’s electricity has a lower fossil share than its overall energy use, because transport, heating and industry still lean heavily on oil, gas and coal.
Total energy
| Fossil share | 74.4% |
| Oil | 51.1% |
| Gas | 21.7% |
| Coal | 1.7% |
Electricity
| Fossil share | 24.9% |
| Low-carbon share | 72.5% |
| Nuclear + hydro | 29.2% |
| Wind + solar + other renewables | 43.4% |
Frequently asked questions
What percentage of Spain's energy comes from fossil fuels?
In 2025, fossil fuels supplied about 74.4% of Spain's total primary energy: oil 51.1%, natural gas 21.7% and coal 1.7%. The world average is 86.2%.
What is Spain's main energy source?
Spain's largest fossil fuel is oil. Non-fossil sources make up 25.6% of its energy.
Is Spain reducing its dependence on fossil fuels?
Since 2010, Spain's fossil-fuel share of energy has fallen by 5.4 percentage points, to 74.4%.
How much of Spain's electricity comes from fossil fuels?
About 24.9% of Spain's electricity came from fossil fuels in 2025, versus 74.4% of its total energy. Electricity is usually the lower-carbon of the two.
Compare with other countries
Source: Energy Institute Statistical Review of World Energy, 2025 data (annual series back to 1965). See methodology.