Our Fuel Mix

Understanding how your electricity is generated is crucial for reporting carbon emissions and showcasing sustainability. We provide a detailed fuel mix for our conventional products and our renewable products, ensuring transparency about your energy supply. 

The charts below show our fuel mix for April 2024 to March 2025. Data for April 2025 to March 2026 will be available late 2026. 

Renewable Product Fuel Mix

Our renewable products are powered by clean generation including natural sources such as wind, solar and hydro. Every megawatt hour we supply to customers on our renewable products is backed with a renewable origin certificate, independently verified by The Carbon Trust. Figures for our renewable fuel mix as illustrated in the chart are Thermal 50%, Wind 50%.

Conventional Product Fuel Mix

Once we have allocated our renewable fuel across the products above, what remains is the residual fuel mix for our conventional products, which is predominantly from grid sources. Figures for our conventional fuel mix as illustrated in the chart are Natural Gas 75%, Coal 15%, Nuclear 4%, Other 6%.