ᐅ 2. Is it worthwhile to have a separate meter for the heat pump? According to the calculations, yes—but is that really the case?
Created on: 7 Jan 2025 11:22
T
Tx-25
Hello, I am currently looking into the possibility of installing a second meter for our heat pump. About us: the house is 5 years old, KfW "42" standard, 150 square meters (1,615 square feet), photovoltaic system, air-to-water heat pump.
Attached is the calculation I have put together. Could this really be correct? What else should be taken into account?
Attached is the calculation I have put together. Could this really be correct? What else should be taken into account?
Tx-25 schrieb:
The consumption of just under 5000 kilowatt-hours (kWh) is correct and has stabilized since the second year in our home with 2 people.Our consumption is also about 5000 kWh, with a photovoltaic system of 13 kWp and a battery storage of 10 kWh, the grid usage remains around 1500 kWh per year,
which is not worth dividing further on the meter.
N
Neuer von Da7 Jan 2025 19:51Having two meters is rarely worthwhile.....
Expansion also costs money.
Unfortunately, we have two meters installed.
And only because the basic fee is so low is the heat pump meter still worth it.
For regular electricity, we pay almost 29 cents per kWh with a €10 (about $11) basic fee.
Consumption is 1250 kWh household, partly reduced by a balcony solar system in 2024.
There is hardly any more potential for reduction in a house.
Heat pump air-to-air and domestic hot water heat pump 1450 kWh in 2024.
In summer, almost only the domestic hot water heat pump runs, and in winter the air-to-air heat pump operates about 8 hours a day due to humidity.
The rest comes from the fireplace, and that’s it.
Expansion also costs money.
Unfortunately, we have two meters installed.
And only because the basic fee is so low is the heat pump meter still worth it.
For regular electricity, we pay almost 29 cents per kWh with a €10 (about $11) basic fee.
Consumption is 1250 kWh household, partly reduced by a balcony solar system in 2024.
There is hardly any more potential for reduction in a house.
Heat pump air-to-air and domestic hot water heat pump 1450 kWh in 2024.
In summer, almost only the domestic hot water heat pump runs, and in winter the air-to-air heat pump operates about 8 hours a day due to humidity.
The rest comes from the fireplace, and that’s it.
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