ᐅ Transmission heat loss too high for KfW 55 standard

Hello,

Attached is the information from our energy consultant. With the installation of a photovoltaic system, we would meet the KFW 55 standard for primary energy demand.

However, the heat transmission loss is too high. We have 36.5cm (14 inches) brickwork and 0.09.

Can someone help me understand how we can reduce this value further? Which measures affect this value?

Thank you, Jörg

Everything related to the building envelope.

Is there a way to fix this with the plaster?

Better insulation, no matter how it’s done. The main thing is careful planning. What does the architect/designer say about it?

hululu0 schrieb:
...according to the information from our energy consultant. By installing a photovoltaic system, we would meet the KfW 55 standard for primary energy demand. However, the transmission heat loss is too high. We have 36.5cm (14 inches) brick and 0.09....

Basically, one should clearly distinguish between theoretical figures on paper and the reality to be expected.
Paper enthusiasts, expecting theoretical benefits, often end up living with a permanent money pit for more than 25 years, which society as a whole of course appreciates. Naive investors are needed!
Why § 25 still remains part of the latest Energy Saving Ordinance amendment is probably only understandable to intelligent and clever builders!

Best regards

Hello €uro, could you please explain it to me again in a way that I can follow?

The reason I'm so focused on the 3 residential units with a subsidy of €2500 each is because I can "really get something out of it".... that's why I'm so persistent.... I understand fully that this won't make a huge difference in energy savings for me!