Air-water heat pump current consumption and data

on the ground floor 29 degrees despite internal shading

Corrected, it says: "on the ground floor 29 degrees DUE TO internal shading"

What does inside bring? 0.5-1°C at most?

Yeah... Of course, it makes sense to invest in external shading first before considering air conditioning. First skylights, then east/west, and only at the end south.

We have no major problems with the temperatures. During the day, [Raffstores] and blinds down and despite the children running in and out 100 times, no more than 23-24° inside the house. When it has cooled down, windows open and [Kontrollierte-Wohnraumlüftung] on full blast. Currently, we have 21.4° in the living area.

Shading is the be-all and end-all with 16 hours of sunshine per day.

Yeah... Of course, it makes sense to invest in external shading first before considering air conditioning.
First roof windows, then east/west, and only at the end south.

During the construction phase, yes.
Once the cat is out of the bag, adding external shading afterwards becomes very complicated. Then it is necessary to weigh the options carefully...

During the construction phase, yes.

*looks around* ...
Yes. We are in the house construction forum. ;-)

Of course, retrofitting is annoying - but most of the time it’s possible. And then I am of the opinion that it definitely pays off ecologically and probably even economically to first install shading and then air conditioning. But in the end, only each person can calculate for themselves, because "a piece of external shading" is a bit too individual.

Edit: It is 21.8 degrees.

In general, hardly anyone gives any thought to the topic of shading.