Determine the consumption of air-to-water heat pump from the total electricity consumption

Hello, in the year 2020 we had a consumption of about 6,800 kW. Of this, 1,750 kW is the self-consumption from our photovoltaic system. That means we have an electricity purchase of 4,062 kW. Since we have an air-water heat pump, the heating also runs on electricity.

How can I now deduct the consumption of the air-water heat pump from the costs?

We have a meter on the electricity line which shows 1,294.59 kWh. Additionally, 2 heat quantity meters are installed. (12,082 and 2,477 MVh).

How can I now calculate the consumption of the air-to-water heat pump from the costs?

We have a meter on the power rail which shows 1,294.59 kWh.

Then you have your electricity consumption of the air-to-water heat pump, right? Or what do you mean by that / what does the meter show?

Then you have your electricity consumption of the air-water heat pump? Or what do you mean by that / what does the meter show?

Yes, I already suspected that, but I wasn’t completely sure. The meter is installed in the cabinet. However, I didn’t know what it measures.
The consumption would then be for 1.5 years. I think that is a bit low?

I thought the heat quantity meters had to be installed to determine the consumption? Or what are they otherwise for?

Yes, I had suspected that, but I wasn't entirely sure. The meter is installed in the cabinet. However, I didn't know what it measures. The consumption would then be for 1.5 years. I find that a bit low? I was under the impression that the heat meters had to be installed in order to determine the consumption? Or what else are they for?

Oh, of course, I don't know that from a distance either. Can you ask the company that did the installation? Is that only the heating electricity or also ventilation? It seems low to me as well, but not impossible.

What the 2nd electricity meter is for is of course hard to guess. It is quite certainly not for the heat pump. Too much heat was produced for that. Where are the heat meters installed? One at the heater and one at the hot water? Is there a separate apartment? Overall, the consumption is rather high. What kind of house and heat pump do you have? Often you can also check the consumption on the heat pump.

Often you can also check the consumption on the heat pump.

Can you do that on ours? The technician from SE once said the values there are only "assumed" and not really meaningful. (?)