2016 KfW Efficiency House 55 according to reference values (U-values)

At first glance, everything that needs to be there is included. We are almost in the same situation, but the general contractor assumed that we would build according to KFW 55 Energy Saving Ordinance 2014. Now the minimum requirements are supposedly tightened, which means that the contractually agreed construction performance to achieve level 55 may not be sufficient. We also want to submit the application after 01.04.16 to receive the higher/better funding.
Currently having it checked..................

We are almost in the same situation, but the general contractor assumed that we would build according to KFW 55 Energy Saving Ordinance 2014.

Have you already informed yourselves or sought advice on how high the hurdle is to go from KfW 55 to KfW 40?

.... however, the general contractor assumed that we would build according to KFW 55 Energy Saving Ordinance 2014. Now supposedly the minimum requirements have been tightened, so it may be that the contractually agreed construction services to achieve level 55 are not sufficient.

Then your general contractor should "get wise," because from "old KfW 55" to "new KfW 55" hardly anything has changed; for heat generators heat pump. I also fell for it in the first step, so I assumed that the requirements to build according to KfW 55 had been significantly tightened. That is not the case; I had overlooked that the primary energy factor for electricity was lowered; therefore "old KfW 70" roughly corresponds to the current Energy Saving Ordinance. Thus, the additional expenses—from Energy Saving Ordinance to KfW 55, wanting to take advantage of funding according to KfW 55—remain roughly the same. However, your energy consultant should be able to explain and confirm this to you understandably.

Changes to the Energy Saving Ordinance

The Energy Saving Ordinance changed on 01.01.2016. From then on, building applications can only be submitted for houses according to the Energy Saving Ordinance 2016. There are essentially 2 decisive changes from 2014 to 2016:

[*]The primary energy demand must be 25% better
[*]The primary energy factor for electricity is lowered from 2.4 to 1.8 (25%)

The reference house (specification of U-values for the building envelope) remains unchanged. For a house with a heat pump, the changes cancel each other out. A house with a gas condensing boiler and solar must save the 25% elsewhere.

Changes to KfW

Until 31.03.2016, the old funding conditions (KfW 70) can still be used and applied for. From 01.04.2016, only the new loans can be applied for. The basic conditions for loans 55 and 40 remain the same. Added is the KfW 40+ house, which must include a photovoltaic system and a battery storage. The KfW loans refer to the Energy Saving Ordinance applicable at the time of the building application. So, for projects until 31.12.2015, the Energy Saving Ordinance 2014 applies, and from 01.01.2016 the Energy Saving Ordinance 2016 applies.

For houses heated with electricity (i.e., heat pumps), it is irrelevant whether the building application was submitted in 2015 or 2016, as explained above. For houses aiming to achieve KfW 70 with a gas condensing boiler, solar, and ventilation system, it will probably not work if the building application is submitted only after 31.12.2015; it must be examined on a case-by-case basis. For other cases, KfW 70 can be applied for until 31.03.2016 regardless of when the building application was submitted.

Consequences again in brief:



Rhineland regards

Construction expert, can you pls also inform me a bit about my question? Or is it not possible to answer that in general? I am just curious how big the jump from 55 to 40 is. With 3 WEH, that is immediately 15,000 euros that you get waived and possibly other funding pots could be tapped. Or should I just give up the idea right away and stick with KfW 55?

Hello,

Construction expert, can you please also provide some information on my question? Or is it generally not possible to answer that?

Rather difficult, since every single-family house must be calculated to create a reliable offer; even more so for a three-family house.

I’m just curious how big the jump from 55 to 40 is. With 3 residential units, that’s immediately €15,000 that you get waived and possibly other funding pools you might tap into. Or should I forget the idea right away and stick with KfW 55?

*I* wouldn’t even want to build to KfW 55; are you sure I am the right addressee for your considerations?

I currently have a bungalow as a two-family house with 280 sqm living area and 92 sqm partial basement on my desk; for this, I obtained an offer from our specialist planner to achieve KfW 40+. The following info was returned:

Solar power system with an output of 9.54 kWp

Modules: Canadian Solar module CS6P – 265P polycrystalline, manufacturer’s warranty: 10 years, 25 years linear performance guarantee

Inverter: Energy storage system ALPHA.ESS STORION-S5 (10 years)
SMA SB 3000 TL-21 (5 years)

Mounting system: Rapidsol made of stainless steel and aluminum, two-layer construction; manufacturer’s warranty: 5 years

At a total price of €23,840.00 including installation with optimal south orientation.

Whether you also want to aim for up to 70% self-sufficiency or not, only you can answer that question

Rhenish greetings

Hello construction expert,

Am I reading your graphic correctly that the combination of gas+solar has not been permitted at all since 2016? Thank you