The fuel mix for the year 1 April 2017 to 31 March 2018 is shown below.
|M&S Energy||UK average|
|CO2 emissions (g/kWh)||310.0||231.7|
|high-level nuclear waste (g/kWh)||0.00031||0.00140|
M&S Energy's website gives the fuel mix for their new partner, Octopus Energy, but as they were supplied by SSE to 28 September 2018 we have used SSE's fuel mix for 2017-18.