Construction costs are currently skyrocketing

So the building envelope is rather poor or bad?

0.34 - Construction according to the Energy Saving Ordinance with 36.5 cm aerated concrete from 2020. Primary energy 12 kWh, final energy 7 kWh.

Comedy? 0.34 W/m²K and 12 kWh/m²/a do not match at all.

So the building envelope is rather bad or poor?

the question is: in relation to what?

Comedy? 0.34 W/m²K and 12 kWh/m²/a do not match at all.

I don't know if you want to tell me that I am a liar or illiterate. But fortunately, I am not obliged to provide proof.

Oh look, the thread with the spam redirects was shamefully and secretly deleted even though the problem still persists. Great dear forum team.

The H'T merely represents the transmission heat loss of the envelope or conversely the quality (better said the poor quality) of the insulation. You can reduce the energy demands with included photovoltaics. So, with sufficiently large photovoltaics, you could have a primary energy demand of 0, even though your H'T is just good enough for the Energy Saving Ordinance (0.400). Final energy only goes up to the size of the electricity demand, but with a heat pump, you can cover everything with electricity... My values after calculation (H'T 0.344, PE 41.65, EE 23.14)