We have a groundwater heat pump, an electric heating element for hot water, and a 10 kW solar system with a 25 kWh (27 kWh) battery storage.
Now in winter, the solar system produces practically nothing. The electricity demand is supplied from the grid.
The system shows the daily electricity consumption.
What I don’t understand about these curves is the electricity demand around 4:00 AM. At that time, we are sleeping, and except for the heat pump, no electricity should be needed. I am not aware of any timer switch that turns anything on at that time.
What could that be?
Best regards,
Bernd


Now in winter, the solar system produces practically nothing. The electricity demand is supplied from the grid.
The system shows the daily electricity consumption.
What I don’t understand about these curves is the electricity demand around 4:00 AM. At that time, we are sleeping, and except for the heat pump, no electricity should be needed. I am not aware of any timer switch that turns anything on at that time.
What could that be?
Best regards,
Bernd
How about setting your alarm for 3:50 AM, hmm?
Without any information and a bit of initiative, you are just wasting everyone’s time here.
This is not a fortune-telling forum.
Without any information and a bit of initiative, you are just wasting everyone’s time here.
This is not a fortune-telling forum.
I would phrase it less confrontationally. You @marienschatten provide very little information, so we can only speculate. The shared diagrams suggest a night setback or shutdown in the control system of your heat pump.
Since we don’t know how much experience you have (and 10 kWp photovoltaic + 25 kWh storage, as well as domestic hot water with an electric heating element, rather indicate limited experience), here’s a quick explanation: We are not suggesting that you manually lower all the thermostats in the rooms at night; rather, we mean a central function programmed into the heat pump’s control system, which can usually be adjusted there as well.
So if you could provide more specific details about your system, someone might take the time to look into it for you...
Since we don’t know how much experience you have (and 10 kWp photovoltaic + 25 kWh storage, as well as domestic hot water with an electric heating element, rather indicate limited experience), here’s a quick explanation: We are not suggesting that you manually lower all the thermostats in the rooms at night; rather, we mean a central function programmed into the heat pump’s control system, which can usually be adjusted there as well.
So if you could provide more specific details about your system, someone might take the time to look into it for you...
I would like to put it more confrontationally, I’ve been awake for a long time 😉
By the way, the alarm clock thing was meant quite seriously. Don’t expect solutions on a silver platter, but start by doing it yourself first.
By the way, the alarm clock thing was meant quite seriously. Don’t expect solutions on a silver platter, but start by doing it yourself first.
M
marienschatten19 Dec 2023 13:13It is difficult to fight against prejudices. A nighttime setback makes no sense and does not exist, definitely no!
To end the aggressive tone in the posts, what information have I withheld so far?
I am not aware of any fault. Everything that is somehow important to understand the abnormal electricity consumption I have shared.
I ask for specific questions!
To end the aggressive tone in the posts, what information have I withheld so far?
I am not aware of any fault. Everything that is somehow important to understand the abnormal electricity consumption I have shared.
I ask for specific questions!
RotorMotor schrieb:
What type of heat pump is installed exactly?Tolentino schrieb:
So if you could specify your system more clearlyIs that specific enough?The statement that a night setback does not make sense with underfloor heating is not generally true, although in your case it probably applies since you have a groundwater heat pump.
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