ᐅ KfW 70 or is it worth investing in KfW 40 Plus with significantly higher costs?
Created on: 12 Jul 2018 16:56
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PaddyOnAirP
PaddyOnAir12 Jul 2018 16:56Hello,
I have selected two home builders and requested quotes based on my custom specifications.
Offer 1 is from Heinz von Heiden, building a KfW 70 house with a ground source heat pump.
Offer 2 is from Viebrockhaus, building a KfW 40 Plus house.
The Viebrockhaus offer is exactly €43,000 more expensive than Heinz von Heiden. However, I would still receive subsidies of €15,000 from the KfW bank and an additional €2,000 from BAFA if I choose to build the KfW 40 Plus house. This leaves a net difference of €26,000.
What do you think? Is the KfW 40 Plus house worth the extra €26,000, or would you prefer to go with the KfW 70 house from Heinz von Heiden?
I look forward to your advice.
I have selected two home builders and requested quotes based on my custom specifications.
Offer 1 is from Heinz von Heiden, building a KfW 70 house with a ground source heat pump.
Offer 2 is from Viebrockhaus, building a KfW 40 Plus house.
The Viebrockhaus offer is exactly €43,000 more expensive than Heinz von Heiden. However, I would still receive subsidies of €15,000 from the KfW bank and an additional €2,000 from BAFA if I choose to build the KfW 40 Plus house. This leaves a net difference of €26,000.
What do you think? Is the KfW 40 Plus house worth the extra €26,000, or would you prefer to go with the KfW 70 house from Heinz von Heiden?
I look forward to your advice.
Clearly...
...it depends :-P
I’m not an expert myself, but I’ve thought about similar issues. You’ll probably get more detailed input from others.
First of all, it should be noted that the comparison only makes sense if you compare apples to apples, which is naturally quite difficult when comparing two different providers.
Putting aside any financial calculations for a moment... what conditions apply to the 40Plus version versus the 70 version? Are both using the same heating system? Both with mechanical ventilation with heat recovery? Etc. Because besides the calculable effects, these factors also influence comfort and well-being in different ways.
But putting that aside and looking only at the financial side... it still depends. Based on the information you provided, it’s about deciding whether the additional 26,000 EUR (approximately 28,400 USD) are worth it. Do you have a reference point for the energy demand each house is calculated on? Then you can start modeling, but you still have to factor in many variables. If you assume energy prices will rise sharply in the future (for which energy source? What assumptions are made? Are they the same in both cases?), it might be worthwhile.
Are you considering a potential resale value? That could be higher for the 40Plus version.
What I mean is... browse through this forum, there are plenty of discussions about this. And if you want even a somewhat reliable discussion here, you need to provide more information.
...it depends :-P
I’m not an expert myself, but I’ve thought about similar issues. You’ll probably get more detailed input from others.
First of all, it should be noted that the comparison only makes sense if you compare apples to apples, which is naturally quite difficult when comparing two different providers.
Putting aside any financial calculations for a moment... what conditions apply to the 40Plus version versus the 70 version? Are both using the same heating system? Both with mechanical ventilation with heat recovery? Etc. Because besides the calculable effects, these factors also influence comfort and well-being in different ways.
But putting that aside and looking only at the financial side... it still depends. Based on the information you provided, it’s about deciding whether the additional 26,000 EUR (approximately 28,400 USD) are worth it. Do you have a reference point for the energy demand each house is calculated on? Then you can start modeling, but you still have to factor in many variables. If you assume energy prices will rise sharply in the future (for which energy source? What assumptions are made? Are they the same in both cases?), it might be worthwhile.
Are you considering a potential resale value? That could be higher for the 40Plus version.
What I mean is... browse through this forum, there are plenty of discussions about this. And if you want even a somewhat reliable discussion here, you need to provide more information.
T
Traumfaenger12 Jul 2018 23:11We had considered KfW 40 Plus, but based on the feedback we received, it seems to be mainly suitable for enthusiasts. Since batteries are not yet very powerful today, it requires some self-discipline to get the maximum efficiency from KfW 40 Plus. In practical terms, this means I have to run high-energy appliances like the washing machine and dishwasher one after the other during the day when the sun is shining and no one is at home. In the evening, I would use the stored energy from the day for cooking, hot showers, etc. In theory, this is all possible, but in practice, we found it too inconvenient since we also sometimes want to run the washing machine or dishwasher in the evening while still having hot water for showers. Moreover, everyone confirmed that KfW 40 Plus is currently not economically viable. It appears to be more of an ethical question than an economic one.
For me as a layperson, it’s similar to electric cars. I can buy a Tesla for $100,000. Taxi rides typically cost me around €20. For the price of the Tesla, I could take 5,000 taxi rides or 20,000 trips using public transport (not considering inspections, wear and tear, etc. on a personal vehicle). The Tesla probably won’t last that long. However, if I really want to use “clean” electric energy instead of diesel, I would still buy the Tesla.
Now we have KfW 40, and that is fine. However, I would separate the question of KfW 40 or 70 from the provider, as there are more features in the construction specification to consider beyond just energy efficiency.
For me as a layperson, it’s similar to electric cars. I can buy a Tesla for $100,000. Taxi rides typically cost me around €20. For the price of the Tesla, I could take 5,000 taxi rides or 20,000 trips using public transport (not considering inspections, wear and tear, etc. on a personal vehicle). The Tesla probably won’t last that long. However, if I really want to use “clean” electric energy instead of diesel, I would still buy the Tesla.
Now we have KfW 40, and that is fine. However, I would separate the question of KfW 40 or 70 from the provider, as there are more features in the construction specification to consider beyond just energy efficiency.