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UK Energy suppliers ranked by the least CO2 emissions

All energy companies are obliged to publish how their electricity is generated plus the CO2 emissions and nuclear waste produced.

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The Fuel Mix shows the fuels used to produce electricity e.g. coal, gas, nuclear or renewables (wind, solar, biomass, hydro).

Ordered by the least CO2 emissions (least to most) CO2 Emissions Renewables % Nuclear Waste More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  0.0 g/kWh 100.00% 0.00000 g/kWh More info
Switch energy  20.0 g/kWh 94.20% 0.00008 g/kWh More info
Switch energy  28.0 g/kWh 90.00% 0.00000 g/kWh More info
Switch energy  76.0 g/kWh 1.00% 0.00028 g/kWh More info
Switch energy  104.0 g/kWh 11.66% 0.00500 g/kWh More info
Switch energy  141.0 g/kWh 66.50% 0.00030 g/kWh More info
Switch energy  190.0 g/kWh 29.40% 0.00000 g/kWh More info
Switch energy  204.0 g/kWh 42.90% 0.00000 g/kWh More info
Switch energy  204.0 g/kWh 42.90% 0.00000 g/kWh More info
Switch energy  204.0 g/kWh 42.90% 0.00000 g/kWh More info
Switch energy  204.0 g/kWh 42.90% 0.00000 g/kWh More info
Switch energy  204.0 g/kWh 42.90% 0.00000 g/kWh More info
Switch energy  210.0 g/kWh 43.00% 0.00080 g/kWh More info
Switch energy  225.0 g/kWh 2.60% 0.00700 g/kWh More info
Switch energy  225.0 g/kWh 2.60% 0.00700 g/kWh More info
Switch energy  225.0 g/kWh 2.60% 0.00700 g/kWh More info
Switch energy  231.3 g/kWh 29.00% 0.00140 g/kWh More info
Switch energy  244.2 g/kWh 34.00% 0.00090 g/kWh More info
Switch energy  254.0 g/kWh 29.40% 0.00700 g/kWh More info
Switch energy  254.0 g/kWh 29.40% 0.00700 g/kWh More info
Switch energy  273.9 g/kWh 25.77% 0.00133 g/kWh More info
Switch energy  298.0 g/kWh 18.00% 0.00006 g/kWh More info
Switch energy  298.0 g/kWh 18.00% 0.00006 g/kWh More info
Switch energy  300.0 g/kWh 18.70% 0.00111 g/kWh More info
Switch energy  300.0 g/kWh 18.70% 0.00111 g/kWh More info
Switch energy  300.0 g/kWh 18.70% 0.00111 g/kWh More info
Switch energy  308.0 g/kWh 16.70% 0.00100 g/kWh More info
Switch energy  310.0 g/kWh 21.00% 0.00031 g/kWh More info
Switch energy  310.0 g/kWh 21.00% 0.00031 g/kWh More info
Switch energy  310.0 g/kWh 21.00% 0.00031 g/kWh More info
Switch energy  310.0 g/kWh 21.00% 0.00031 g/kWh More info
Switch energy  310.0 g/kWh 15.00% 0.00070 g/kWh More info
Switch energy  339.4 g/kWh 28.00% 0.00090 g/kWh More info
Switch energy  345.0 g/kWh 7.30% 0.00130 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 3.00% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.0 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  359.4 g/kWh 2.60% 0.00133 g/kWh More info
Switch energy  360.0 g/kWh 0.00% 0.00160 g/kWh More info

Other UK Energy suppliers

The suppliers listed below are either new entrants to the market and therefore have not yet published their fuel mix data, or we have been unable to track down the data.

Ordered by name More info

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