Bafa funding for heat pumps will be discontinued as of 31.12.2020.

Maybe I'm not seeing this clearly or mixing something up, but my current understanding is that only those who already have "everything up and running" should hurry until 12/31/20. For those who anyway plan to start construction only next year, it would rather be more worthwhile (partly higher funding amounts) to take advantage of the new federal funding BEG from 07/01/2021?! However, it is unfortunate for those who are dependent on funding in the meantime until 06/30/2021. Do I understand this correctly so far?

However, it's unfortunate for those who depend on subsidies in the meantime until 06/30/2021.

It's unfortunate if you depend on subsidies at all. Every construction should work well or be financially viable even without subsidies ;-)

It’s unfortunate when you are dependent on subsidies at all. Every construction should work well or be financially viable even without subsidies ;-)

That is true on one hand, but on the other hand certainly not uncommon.

In fact, I expressed myself poorly and rather meant the timing of the start of the measures themselves, so that the subsidies would then be lost within the mentioned timeframe. The latter because you have to apply for the subsidies before starting the measures, at least that is my understanding so far.

Maybe I don’t quite understand this correctly or I’m mixing something up, but my current understanding is that only those who already have "everything up and running" should hurry until 31.12.20.

You are mixing something up.

For those who anyway plan to start construction only next year, wouldn’t it rather be worthwhile (partly higher subsidy amounts) to take advantage of the new federal funding BEG from 01.07.2021?!

No. That’s not true. The subsidies from this year are generally higher than the future ones.

Example KfW 55:

Until 30.06.2021 (provided BAfA application was submitted by 31.12.2020):
Repayment grant KfW 153: 120,000 EUR x 15% = 18,000 EUR
BAfA subsidy: 30,000 EUR x 35% = 10,500 EUR
Total subsidy: 28,500 EUR

From 01.07.2021, provided EE or NH package is fulfilled:
Repayment grant KfW 153: 150,000 EUR x 17.5% = 26,250 EUR
BAfA subsidy: 0 EUR
Total subsidy: 26,250 EUR

Example KfW 40:

Until 30.06.2021 (provided BAfA application was submitted by 31.12.2020):
Repayment grant KfW 153: 120,000 EUR x 20% = 24,000 EUR
BAfA subsidy: 30,000 EUR x 35% = 10,500 EUR
Total subsidy: 34,500 EUR

From 01.07.2021, provided EE or NH package is fulfilled:
Repayment grant KfW 153: 150,000 EUR x 22.5% = 33,750 EUR
BAfA subsidy: 0 EUR
Total subsidy: 33,750 EUR

Example KfW 40 Plus:

Until 30.06.2021 (provided BAfA application was submitted by 31.12.2020):
Repayment grant KfW 153: 120,000 EUR x 25% = 30,000 EUR
BAfA subsidy: 30,000 EUR x 35% = 10,500 EUR
Total subsidy: 40,500 EUR

From 01.07.2021, provided EE or NH package is fulfilled:
Repayment grant KfW 153: 150,000 EUR x 25% = 37,500 EUR
BAfA subsidy: 0 EUR
Total subsidy: 37,500 EUR

By the way: The higher the eligible costs for the heating system, the greater the advantage of the old subsidy.

It’s unfavorable though for those who rely on subsidies in the meantime until 30.06.2021.
Do I understand that correctly so far?

Correct, if no BAfA application was submitted this year. Then you only get the 18,000 EUR, 24,000 EUR or 30,000 EUR from the KfW-153 program.

Therefore, it has already been advised here several times to submit a BAfA application by the end of the year to keep all options open in 2021.

Only as a supplement to :

As of now, there is apparently only a maximum loan amount of €120,000 for KfW 55 and KfW 40, and accordingly only the maximum 17.5% or 22.5%.
This makes the current subsidy look even better in the consideration.

Nothing has been issued yet. :) We are currently in the middle of construction. The heating system will be put into operation next week. The invoices apparently come from the general contractor. There, all items concerning the heating are listed. With the exception of one invoice. We also had to lay a local heating pipe, which we paid directly to the heating installer.

Oh, I didn’t know that :) I also spoke with our general contractor yesterday, the invoices then also go directly from him to BAFA.

The specialist contractor declaration was the report from the Wolf homepage. There is a calculator for the annual performance factor there. We got the data for it from the general contractor. Nobody signed the report/declaration. According to the general contractor, that was not necessary. He apparently also inquired with the heating installer about it again. As I said, that’s how it went with us, no guarantee that it always works that way. I think it makes a difference whether you build with a general contractor, building contractor, or commission everything individually yourself.

The specialist contractor declaration must be submitted after the heating system is completed. I think the heating installer will then sign and issue it for you. I will now submit the application as you did and hope that it goes through the same way as with you. Did you change the heat pump again for the application or did it remain the same?