Construction costs are currently skyrocketing

Yes, that sounds familiar to me. Friends also complain that even in winter, in their 2-year-old new apartment with a south/west orientation, there is always such warmth inside, and they look forward to winter because it is sometimes so much more pleasant. In summer, the apartment gets very warm, especially due to the floor-to-ceiling windows facing all directions, and also in spring/autumn when the sun is shining. Many new buildings seem to have this in common…

Yep. In the first year in the new building, we wondered how the thermometer in the living room could show 28°C in May, with an outside temperature of 19°C. We were so confused about this that we called the plumber to ask if something might be wrong with the heating. But it turns out this can simply be explained by physics. The sunlight coming through the windows can be converted into heating energy, and since the house is tighter than our previous one, it actually heated up that much. So shading is always an issue in new buildings, not just in summer.

Well, our consumption over exactly 1 year was almost exactly 2000 kWh for heating and hot water. Even at 40 cents, I would pay 800 euros for that, plus the basic fee. That would be 70 to 80 euros per month. I would still find that very cheap. What could be cheaper?

Do you have data from the building for me? Our heating engineer mentioned something about 6000 kWh for 158 sqm and KfW55... Here there would be local heating with 9 cents/kWh...

Do you have data from the building for me? Our heating engineer mentioned something about 6000 kWh for 158 sqm and Kfw55... There would be local heating here with 9 cents/kWh...

Our house is smaller. 107 sqm, also Kfw55, bungalow. And we still have the fireplace, which is often used. And I modified the heat pump a bit because the electricity consumption for water was quite high; with that, I went from 130 kWh per month for water to about 30 kWh.

Our house is smaller. 107sqm, also kfw55, bungalow...

Then the 6000kwh is probably about right :/ We had already expected less :/

Interesting that a cozy home requires temperatures far from 20 degrees. That probably means no energy saving. We live in a single-family house from the time of the first thermal insulation ordinance, where only the windows have been renovated so far, and have maintained a living room temperature of 19-20 degrees without heating the whole time. If someone feels too chilly, they can dress warmer or consider using a blanket. The highlight of pampering for me was a report about freezing children in the indoor pool because the water was too cold. It turned out that it was heated to 26 degrees. We trained daily at 22 degrees 30-35 years ago... you just have to swim and not complain or argue with the coach!

Then the 6000 kWh is probably about right :/ We had expected less :/

I don't think so, your house isn't that much bigger. You can also check the hot water consumption to see what it will be and possibly make some changes. There is a separate topic about this here in the forum.