ᐅ Costs for heat pump, water, and electricity

Created on: 25 Jan 2024 21:42
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bolle89
Hello everyone,

I hope this topic is posted in the right section or generally appropriate for this forum. I am a new property manager and have a problem with the billing of electricity, water, and heating electricity. I have attached an image listing all the values. The building consists of 4 residential units (Unit 1 to Unit 4).

Can someone explain how to calculate the costs for each individual unit? Calculating the total water consumption cost is not an issue, but for example, electricity is needed to heat the water. However, there is no specific price per cubic meter for hot water. How should I calculate the electricity costs for heating the hot water for each unit?

Additionally, there is a general electricity meter connected to the heat pump, which supplies, for example, the corridor lighting or the bicycle storage room lighting.

How does this work for the electricity consumption of the electric auxiliary heater and compressor? This consumption is not reflected on the general electricity meter, which I would have expected. I am a bit confused here and might be missing something. Hopefully, someone can help me.

Thank you very much and best regards

Consumption table: electricity, heating, water per meter (31.12.23 and 25.01.24) including heat pump
Tolentino28 Jan 2024 10:55
Hmm, your issue now is that the general meter shows a consumption of 779 kWh, while your heat pump indicates an electricity consumption of 810 kWh.
This means you can’t effectively calculate any shared electricity, because the heat pump claims to use more than the total. The fact is, you need a separate meter for the heat pump. Wait and see what the electricity bill shows for the shared electricity.
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bolle89
28 Jan 2024 11:57
You are right. I just checked the current readings from the heat pump and the main meter again for testing. In this case, the heat pump still shows higher electricity consumption than the main meter.
What could possibly be the reason for this? Otherwise, I guess we will just have to wait and see until the bill arrives.
Tolentino28 Jan 2024 12:46
Well, the meters in heat pumps are often not very accurate, but they usually register less rather than more.
However, the electricity consumption for the hallway lighting alone is also too high (in case the meter does not count the heat pump consumption).
Asking an electrician would be my next step; they should know exactly what is connected to the meter and might also be able to measure how much the heat pump actually consumes.