ᐅ Determine the electricity consumption of the air-to-water heat pump as a proportion of the total power consumption.

Created on: 2 Jan 2022 13:38
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Tx-25
Hello, in 2020, we consumed about 6,800 kWh of electricity. Of this, 1,750 kWh was self-consumption from our photovoltaic system. This means our electricity purchase from the grid was 4,062 kWh. Since we have an air-to-water heat pump, the heating also runs on electricity.

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

We have a meter on the electrical distribution board showing 1,294.59 kWh. Additionally, there are two heat meters installed (12,082 and 2,477 MWh).
KingJulien9 Jan 2022 13:26
OWLer schrieb:

You have to take care of VAT for the photovoltaic system alone.
Maybe @Badener1970 is "on" a SHORT break 😉
OWLer9 Jan 2022 15:46
KingJulien schrieb:
Maybe @Badener1970 is "on" KUR 😉

Well, that would make sense. However, not financially if you end up losing the VAT. Anyway, we as a forum are not the point of contact for electricity meters...?
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Badener1970
10 Jan 2022 21:26
guckuck2 schrieb:

No, that is all correct, it’s called a meter cascade, also known as metering concept 8.

The October 21 reference doesn’t indicate when the photovoltaic system and meters were activated … given the high values, it’s assumed this happened during the summer.
Correct, the meter was installed in June, which was also when the dry heating of the screed was running…
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Badener1970
10 Jan 2022 21:27
OWLer schrieb:

Don’t change anything about point 2. If you install a cascade system, you have to take care of the VAT for the photovoltaic system anyway.
I’m afraid I don’t understand anything...???