Construction costs are currently skyrocketing

At least the topic of energy consultants was streamlined this year ;) I also find bureaucracy tiring not only with RE or funding... the utility connections involve a lot of paperwork as well

My statement did not refer to VAT either - that is only a pass-through item.

And yes, it is relevant because I generate about €200 of taxable profit each year and have to pay taxes on it - but not anymore starting next year.

That makes sense that way! The observation period for hobby activities ranges from 7 to 15 years depending on the case. I was indeed not aware of the 20 years for photovoltaics. Due to the current price and supply situation, I have not dealt intensively with the tax aspects anymore ;)

right, that is complicated.

I cannot confirm that. Our general contractor informed the energy consultant working with him that we want to build according to kfw55, and he then set everything in motion. Only now and then did I receive something for signature or some documents. We had to submit an application for the funding at Kfw and now have two financings, but the financing agent took care of that.
Sure, a bit of additional effort, but nothing dramatic.

hmm something is wrong. What roof pitch do you have? My house dimensions are also about 9x11 and in my planning 24 modules fit on two sides. all four sides would fit 48.

We have 30 degrees. I have already increased the area coverage from 8 modules to 9, more is absolutely not possible with a 30 degree roof pitch.

A hipped roof is not just a hipped roof. If it turned out unfavorably, it only has a narrow triangle to the south because east-west are each trapezoids and the house is rectangular with the narrow side facing south. If there is also a roof window, the roof area is rather small.

That's exactly right, except for the roof window, we don't have any because it is a full story.

Ok, I have 25° - maybe that's the reason. I wouldn't have thought it made such a difference.

Bungalow 12.20 x 9.60, roof pitch 30°, roof overhang 60 cm, 13.68 kWp.
30 module house, 23 modules south 32° azimuth, 7 modules southeast -58 azimuth. In addition 6 modules garage. In total 36 Trina TSM-380-DE09.05 Fullblack (exactly 1 pallet), built 10/21, commissioning 01/22. Production to date 14,300 kWh. Costs slightly over 11 thousand euro net.