Calculating an unofficial BER based on heat pump readings

LeoD

Doing a quick back of an envelope calculation on our house's BER. Our only energy source is electricity complimented with air source heat pump. The heat pump consumed 5,000kwh and delivered 17,700kwh in 2021. Our annual electricity consumption is around 9,000kwh and I know BER would also include additional energy consumed by lighting and hot water, but would the house's BER be based on the energy consumed or required/delivered?

sydthebeat

https://www.boards.ie/discussion/2058270384/calculating-an-unofficial-ber-based-on-heat-pump-readings

neither

its based on primary energy, which includes the energy required to get the kwhr energy to your dwelling.

so for example, an electrical heating system which runs at 100% efficiency will be crucified in a BER assessment because the electricity grid system is only 48% efficient ie it takes 2.08 Kwhr of energy to produce 1 kwhr of electricity