Hi Chris, below is the sort of result I’m looking for:
In this 150m2 imaginary house, the heating was initially supplied by a modern gas boiler (90% efficient) plus an woodburning stove (50% efficient). There’s was gas hob which not only cooks, but adds to the house space heating. The occupants use 3000 kW/yr of electricity which a baseline constant in this example. In 2020 the Gas hob was converted to induction, followed by replacing the gas with an inefficient ASHP SCOP=2.5, which was then upgraded the following year to SCOP 4.0 and finally, the wood burner was dumped.
The table shows the heat input to the house and the wastage year by year and finally the Energy Usage Intensity (EUI) which is kwh/m2/year. EUI includes all the energy input not just the heating. Simplistically it’s what’s purchased.
EV usage and Solar kWh exported are both excluded
If you can create a year-by-year data set that would be great.
Many thanks - Geoff