Newly built apartment (KfW-55) cannot be cooled, always at least 25 °

56 kWh in effectively 24 days (we were not at home for 2 days). Costs: 2.33 kWh/day = €0.7/day.

What kind of split air conditioning system is that supposed to be? Because 56 kWh is very, very little. If it really ran 12 hours a day. By the way, I found the temperatures in the house the most comfortable this year. We consistently kept the east side closed, hung a huge sail of 6 meters on the south side, and in the evening the west side is lowered. But what I think was different this year compared to previous years is that at night it always cooled down much more outside. By the way, yesterday was the first rain in 3 months except for one day. How do I know that so precisely? I rode my bike to work every day.

Panasonic 6.8 KW outdoor unit 3* 2.0 KW and 1* 3.5 KW indoor units Etherea

Strangely, it has a fairly high standby consumption of about 240 watts/day, which I noticed when I went on a trip. The indoor units listen via WLAN and are accessible through the cloud, maybe that's why. That is 2.5 watts per unit, should be about right. Still a lot when calculated for the year: 87.6 kWh. Means also that in the 56 kWh consumption, 5.8 kWh standby is included.

KfW70 with monolithic 36.5cm and double-glazed windows: basically a consistent 23 degrees inside the house. When it was frequently over 30 degrees, the living room sometimes reached 25 degrees because the patio door was often left open. Otherwise, at night at least one window tilted open and early in the morning at 17-19 degrees ventilate, then keep shutters on the south and west sides closed during the day. I know why I didn’t build KfW55 or 40... so a plastic house with a ventilation system.

I have KfW55 monolithic, is that then a plastic bag?

My KFW55 is also monolithic. Nevertheless, I have heat in the house, upstairs is only drywall inside and I have no roller shutters upstairs. The roof has anthracite tiles, which doesn’t make it any better.

We also built a KFW 55 house (without subsidies), we do not have such problems, we had a maximum of 24 degrees. We have dispensed with ventilation, but through intelligent shading and only opening windows at night, we can avoid excessively high temperatures both in the attic and on the ground floor. The photovoltaic system on the roof also keeps the sun off the roof tiles, which additionally provides cooling.

Panasonic 6.8 KW outdoor unit 3* 2.0 KW and 1* 3.5 KW indoor units Etherea Strangely, it has a fairly high standby consumption of about 240 watts/day, which I noticed when I was away. The indoor units listen via WiFi and are accessible through the cloud, maybe that’s why. That’s 2.5 watts per device, should add up. Still a lot when calculated over the year: 87.6 kWh. It also means that out of the 56 kWh consumption, 5.8 kWh are standby.

Please calculate properly… (no one can follow that) and when I read

consumption of about 240 watts/day

I doubt all the numbers. What was running 12 hours a day and how many days? What power consumption do the devices have?