live intensities are available for 2020 onwards.
kgCO2 857kg (2.3/d) -1658kg (-4.5/d) 600kg (1.6/d) ~-0.20tCO2 (~-0.55kgCO2/d) gas/electricity emissions total for 4 people, based on 0.43kgCO2/kWh for electricity (netted) and 0.19kgCO2/kWh for gas, ie slightly carbon negative . We did not fly this year and still do not own a car. Sources/Links 2019-10-31: It's quite a lot worse than this. Analysis by @PassivhausTrust suggests new homes typically need at least 85kWh of heat per m2 of living space, that's nearly 6 times the 15kWh recommended by @theCCCuk and achieved by #Passivhaus. : 16WW seems to be a little under 40kWh/m^2 for space heat, eg see 2018 assuming 3kWh/d for DHW from <4MWh gas total. 2019-06-04: Greenhouse gas reporting: conversion factors 2019 : These emission conversion factors can be used to report on 2019 greenhouse gas emissions by UK based organisations of all sizes, and for international organisations reporting on UK operations. 2017-10-01: Ofgem Typical Domestic Consumption Values (TDCVs) kWh/year: low gas 8000 electricity (class 1) 1900, medium gas 12000 electricity 3100, high gas 17000 electricity 4600. From April 2020 electricity TDCVs drop a little to: low 1800, medium 2900, high 4300. The low-end 2020 electricity (class 1) percentiles are 5%@600kWh, 10%@1100, 25%='low', median='medium', 75%='high'.