1.1Energy consumption by source
The UK consumed 1,889 terawatt-hours (TWh) of primary energy in 2025. That was 31% less than at its peak in 2001.
Oil (39%) and gas (36%) still make up most of this. Coal, which provided almost half of the UK's energy in 1970, now provides just 1%.
This measure of primary energy, though, overstates the role of fossil fuels in the country's final energy mix, because so much of their energy is wasted as heat when they are burned.