KFW40(plus) standard multifamily house cannot be achieved

  • Erstellt am 2019-09-01 16:57:00

Scout

2019-09-03 07:32:17
  • #1
KfW40, i.e. among other things the following requirements, which are necessary for the loan approval, you must submit


    [*]A power-generating system based on renewable energies
    [*]An adapted, stationary battery storage system/power storage
    [*]Reduction of feed-in power to a maximum of 60%

In other words, you must consume at least 40% of the solar yield yourself(!), i.e. within the building. Otherwise, there is no loan or if this is found out afterwards, you can be accused of fraud in the extreme. If you cannot do this, there will be no money at first or it will have to be repaid!

Do you live in the apartment building yourself? No, then the residents must consume it. So you must bind them to a power contract; you yourself become the power supplier.

Have you thought about the whole chain of consequences this entails? From an energy law perspective, the photovoltaic system operator becomes a utility company (EVU) within the meaning of the Energy Industry Act (EnWG) and must for every kilowatt-hour sold collect and pay the Renewable Energy Sources Act surcharge themselves, and pay grid fees to the grid operators or the concession fee to the municipality, pay VAT, etc.

Legally, one may terminate a power supply contract. If things go really badly, the tenant might take the lease agreement together with the power contract because they fear not getting a lease otherwise and then terminate the power supply contract after moving in. Then you are in a very bad position! Do you then want to heat the garden pond to 40° with all the electricity or what will you do for your 40° quota? The financing costs for the technology keep running.

Good point, now calculate the costs for all the technology and add the effort for this bureaucracy plus tax advisor as ongoing costs on top using your hourly rate. Still convinced?
 

dertill

2019-09-03 07:47:10
  • #2
This only applies to kfw40 PLUS! And regarding the sale of electricity to tenants: Everything is regulated under the keyword Mieterstrom. The Renewable Energy Sources Act surcharge does not apply there; it is still complicated and complex.
 

curverbox

2019-09-03 09:02:22
  • #3
Yes, each component meets the requirements for KfW40, but with the thermal bridge factor of 0.03 according to the simplified KfW, the required values are not achieved. With my own calculation using the same program as a demo version, I played around a lot to reach the values; it is tight up to the second decimal place... If I change one component, e.g. the window from 0.87 to 0.88, it is already above... However, if the thermal bridge factor were calculated in detail and thus lowered, values could be changed again.
 

Zaba12

2019-09-03 09:34:13
  • #4
Installing in a demo version is not the solution! You have now been given several options.

So, what are you going to do now?
 

curverbox

2019-09-03 09:38:10
  • #5

I will meet with the energy consultant again and share the "learned" insights.
 

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