Our Fuel Mix
We're proud to supply your business with electricity that's 99% zero carbon. Explore our latest fuel mix disclosure and see how it compares with the wider 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 from 1st April 2025 to 31st March 2026.
| Energy Source | British Gas business | British Gas Trading Limited | UK Average |
|---|---|---|---|
| Coal | 0% | 1% | 5% |
| Natural gas | 1% | 7% | 31% |
| Nuclear | 51% | 46% | 14% |
| Renewables | 48% | 45% | 48% |
| Other fuels | 0% | 1% | 2% |
| CO2 emissions | 4 g/kWh | 42 g/kWh | 179 g/kWh |
| High-level radioactive waste | 0.0031 g/kWh | 0.0027 g/kWh | 0.0008 g/kWh |
| Zero Carbon % | 99% | 91% | 62% |
Fuel mix of our products and contracts
The table shows the British Gas fuel mix from 1st April 2025 to 31st March 2026.
| Energy Source | British Gas Trading Limited | Renewable Energy for Business | Zero Carbon Energy for Business | All Other Products | UK Average |
|---|---|---|---|---|---|
| Coal | 1% | 0% | 0% | 2% | 5% |
| Natural gas | 7% | 0% | 0% | 10% | 31% |
| Nuclear | 46% | 0% | 64% | 47% | 14% |
| Renewables | 45% | 100% | 36% | 40% | 48% |
| Other fuels | 1% | 0% | 0% | 1% | 2% |
| CO2 emissions | 42 g/kWh | 0 g/kWh | 0 g/kWh | 63 g/kWh | 179 g/kWh |
| High-level radioactive waste | 0.0027 g/kWh | 0 g/kWh | 0.0038 g/kWh | 0.0028 g/kWh | 0.0008 g/kWh |
| Zero Carbon % | 91% | 100% | 100% | 87% | 62% |
