Significantly more expensive electricity usage in new build flat
I'm trying to work out why my new build 2 bed flat is using up around 30kwh a day.
My boiler has changed from an immersion heater which we left on constantly to a heat pump boiler, and during the summer we'd never have the heating on so would only cost us around £100/month on the agile tariff.
I've now moved and my energy usage is around 0.5kwh every half an hour, costing me probably around £40/week.
As it's a new build flat I also have an MVHR and have set that to summer bypass.
Looking at the heat pump's energy usage, it says it's running around 7kwh a day but then the rest of the energy usage seems insane especially when we are not in the house /actively using anything.
Is the above normal? Or is there something else in the flat sucking up electricity constantly that I'm unaware of.
Edit: Seeing a couple requests: I have a Samsung controller (gen6 I believe) for my air source heat pump, I'm not sure what model the flat uses exactly though. It's a 150L tank, and my hot water occasionally runs out if it's only set to run once at night (DHW set to 50), I've left the 'zone' on weather compensation (-3 degrees) to see if that helps with keeping it efficient but i doubt it's turning on often, I have under floor heating and no radiators, and my thermostats turned onto 19c during the night at low energy rates and 16c thereafter.