Our Fuel Mix Disclosure
Explore our latest Fuel Mix Disclosure and see how it compares with the average UK energy mix.
Where your electricity comes from
The Fuel Mix Disclosure refers to the blend of fuels we use to generate electricity supplied to customers, along with its environmental impact. We publish this information annually in October. As part of regulatory requirements, all energy suppliers, including British Gas, must disclose these details.
Fuel Mix Disclosure
The table shows the British Gas Fuel Mix Disclosure from 1st April 2025 to 31st March 2026.
| Energy Source | British Gas Trading Limited | British Gas business | UK Average |
|---|---|---|---|
| Coal | 1% | 0.1% | 5% |
| Natural gas | 7% | 0.7% | 31% |
| Nuclear | 46% | 51% | 14% |
| Renewables | 45% | 48% | 48% |
| Other fuels | 0.6% | 0.1% | 2% |
| CO2 emissions | 42 g/kWh | 4 g/kWh | 179 g/kWh |
| High-level radioactive waste | 0.0027 g/kWh | 0.0031 g/kWh | 0.0008 g/kWh |
| Zero Carbon % | 91% | 99% | 62% |
Our Fuel Mix Disclosure at a glance
Fuel Mix Disclosure of our products and contracts
The table shows the British Gas Fuel Mix Disclosure from 1st April 2025 to 31st March 2026.
| Energy Source | Renewable Energy for Business | Zero Carbon Energy for Business | All Other Products | UK Average |
|---|---|---|---|---|
| Coal | 0% | 0% | 2% | 5% |
| Natural gas | 0% | 0% | 10% | 31% |
| Nuclear | 0% | 64% | 47% | 14% |
| Renewables | 100% | 36% | 40% | 48% |
| Other fuels | 0% | 0% | 0.9% | 2% |
| CO2 emissions | 0 g/kWh | 0 g/kWh | 63 g/kWh | 179 g/kWh |
| High-level radioactive waste | 0 g/kWh | 0.0038 g/kWh | 0.0028 g/kWh | 0.0008 g/kWh |
| Zero Carbon % | 100% | 100% | 87% | 62% |
