ᐅ House electricity consumption – what is your usage?

Created on: 6 Oct 2020 06:29
C
chewbacca123
Good morning everyone,
I wanted to ask what your house’s electricity consumption is at night when everything is quiet and sleeping, so what is running continuously?

We have a newly built house, moved in summer 2019. Our building services include underfloor heating (air-to-water heat pump), controlled mechanical ventilation (runs at full power 3 times a day for 2 hours each, then reduced), a photovoltaic system, and otherwise the usual nighttime appliances (phone charger plugged into USB outlet, e-bikes charging occasionally, 2 TVs on standby, Alexas on standby, etc.).

At night, we have a continuous consumption of about 232W (with ventilation running at reduced power and when the heat pump is not producing). I can see this in the app for the photovoltaic system. From 0:00 to 6:30 a.m. we consume about 2.8 kWh.

How about you?

Best regards
Z
Zaba12
21 Dec 2020 17:49
Daniel-Sp schrieb:

Can you still increase the flow rate in the heating circuit? At 0°C (32°F) outdoor temperature, you should have a smaller temperature difference. Can the heating circuit pump deliver more power?
Definitely.

I will bring this up in the pink forum. Still waiting for the USB for the data log, because without the data log there’s no point in asking ;-) I will check the consumption tomorrow with the new heating curve and will start the heating in the basement the day after tomorrow, since I found the following:

„...unheated rooms within the thermal building envelope inevitably lead to a higher heating load in the heated rooms ... which logically can only be compensated by higher flow temperatures...“

Thanks for the hint.
D
Daniel-Sp
21 Dec 2020 18:31
To determine whether the temperature spread with the current outside temperature (AT) is too high, you do not need a DTA log...
D
Daniel-Sp
21 Dec 2020 18:34
At 2°C (36°F) ambient temperature, the heat pump still delivers just over 7 kW of output. And that heat needs to be transferred away.
rick201821 Dec 2020 18:54
We currently have an average electricity consumption of just under 3 kWh. This applies regardless of whether the energy comes from the grid or from our photovoltaic system. We use only LED lighting, a state-of-the-art pool pump, a large mechanical ventilation system with heat recovery, network equipment, and so on. I’m surprised by how “low” the consumption is. For example, I know of smaller pools that alone consume as much energy as everything combined in our home. Heating is done with gas. I can’t make any predictions on that yet, as we’ve only been living in the house for a little over a month. There has also been a lot of testing (pool heating, etc.). As soon as there is sunshine and the shading on the upper floor is used, the heating will only be needed for hot water.
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RotorMotor
21 Dec 2020 19:36
rick2018 schrieb:

We currently have an average electricity consumption of just under 3 kWh.

Do you mean 3 kWh per day?
Or 3 kWh per hour, meaning 3 kW?

The first would indeed be very low.
The second would be extremely high.
rick201821 Dec 2020 19:52
3 kW per hour. This is quite low for the house and its equipment.