Country energy profile · Thailand · 2025
What percentage of Thailand’s energy comes from fossil fuels?
In 2025, fossil fuels supplied 92.2% of Thailand’s total energy. Oil is its largest single source. That compares with a world average of 86.2%.
Oil 46.3%, natural gas 34.0%, coal 11.9% · non-fossil 7.8%.
Source: Energy Institute Statistical Review of World Energy 2025 data. Site updated August 13, 2026.
Thailand energy mix, 2025
Share of total primary energy by source
Key facts
| Fossil-fuel share | 92.2% |
| World average | 86.2% |
| Main fossil fuel | Oil |
| Change since 2010 | -5.8 pts |
| Fossil energy per person | 64.5 GJ |
| CO₂ per person | 3.7 t |
| Fossil share of electricity | 78.3% |
| World rank, fossil energy used | #20 of 80 |
Is Thailand 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 Thailand
Consumption by fuel, 1965–2025
Exajoules (EJ) per year
Total energy vs. electricity
Thailand’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 | 92.2% |
| Oil | 46.3% |
| Gas | 34.0% |
| Coal | 11.9% |
Electricity
| Fossil share | 78.3% |
| Low-carbon share | 21.7% |
| Nuclear + hydro | 3.9% |
| Wind + solar + other renewables | 17.8% |
Frequently asked questions
What percentage of Thailand's energy comes from fossil fuels?
In 2025, fossil fuels supplied about 92.2% of Thailand's total primary energy: oil 46.3%, natural gas 34.0% and coal 11.9%. The world average is 86.2%.
What is Thailand's main energy source?
Thailand's largest fossil fuel is oil. Non-fossil sources make up 7.8% of its energy.
Is Thailand reducing its dependence on fossil fuels?
Since 2010, Thailand's fossil-fuel share of energy has fallen by 5.8 percentage points, to 92.2%.
How much of Thailand's electricity comes from fossil fuels?
About 78.3% of Thailand's electricity came from fossil fuels in 2025, versus 92.2% 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.