Given that gas consumption for electricity generation is slightly declining and coal use has been rising (0.9 kg/kWh), can someone explain why we should use 0.43?
Also it's become clear from someone else making an enquiry to DTI that the 0.43 figure excludes electricity losses in transmission and distribution. These are 8% as an annual average and are over 20% on some routes at winter peak (which would be more appropriate to calculations of the emissions from electric space heating). Does the 0.53 exclude T&D losses?
Does it also include losses in production of fossil fuels. For instance with coal, oil and gas, between 5% and 9% of the primary energy in the fuel at the point of extraction from the ground is consumed in refining oil, pumping gas through pipes, delivering coal by lorry, etc, etc.