The relevant figures are for the UK as a whole. If you add load then that marginal extra power comes from the UK network. The interconnects with Europe make it

The relevant figures are for the UK as a whole. If you add load then that marginal extra power comes from the UK network. The interconnects with Europe make it more difficult to know the marginal difference in CO2 production. I live in the South Island of New Zealand which has huge hydropower - power is sent to the North Island via the undersea DC link: https://www.transpower.co.nz/system-operator/live-system-and-market-data/hvdc-transfer https://www.transpower.co.nz/system-operator/live-system-and... So if I add load then what matters is where the marginal extra power demanded is generated from across the whole network (even if that is in the North Island).