ᐅ Passive House as a Logical Choice? Are There Any Counterarguments?
Created on: 20 Feb 2015 19:54
V
Vogtländer
Hello everyone,
we are a family planning to build a house. So we have tried to gather as much information as possible. In the process, we have come across the passive house concept.
Do you know that feeling when you think you understand something and then wonder why everyone isn’t doing it that way? That’s exactly how we feel about the passive house right now. Are we missing something, or are there any arguments against building a passive house? I really can’t think of any.
Of course, it is somewhat more expensive, but if I recover the costs soon and then save money for life, I don’t understand, for example, why I would build a KfW 70 house instead...
So please either correct me or agree with me, but my conviction about the passive house feels a bit unsettling.
Thanks for your thoughts.
we are a family planning to build a house. So we have tried to gather as much information as possible. In the process, we have come across the passive house concept.
Do you know that feeling when you think you understand something and then wonder why everyone isn’t doing it that way? That’s exactly how we feel about the passive house right now. Are we missing something, or are there any arguments against building a passive house? I really can’t think of any.
Of course, it is somewhat more expensive, but if I recover the costs soon and then save money for life, I don’t understand, for example, why I would build a KfW 70 house instead...
So please either correct me or agree with me, but my conviction about the passive house feels a bit unsettling.
Thanks for your thoughts.
Vogtländer22 Feb 2015 23:51The photovoltaic system plus battery costs €23,000 (approximately $25,000).
...that means an additional €27,000 (about $29,000) compared to the upgrade from the Energy Saving Ordinance to Passive House standard.
...that means an additional €27,000 (about $29,000) compared to the upgrade from the Energy Saving Ordinance to Passive House standard.
Vogtländer schrieb:
The fact that I will still receive money from feeding electricity into the grid, because I probably won’t consume 9,000 kWh per year and energy prices will likely continue to rise, has not been taken into account yet.Please correct me if I’m wrong, as I’m not very familiar with the system.
In winter or when the photovoltaic system doesn’t produce enough due to poor weather (in summer it should cover your consumption), you will have to buy additional energy for heating and general electricity use... at a higher price than what you receive for selling it back?!
Vogtländer23 Feb 2015 00:07@nathi No, the fireplace was included in the energy saving regulations as well.
...exactly
I can feed in electricity at 11 cents per kWh (this rate is legally guaranteed for the next 20 years).
When the sun is shining, I heat my buffer tank and charge the battery.
When the sun isn’t shining, I use the hot water from the buffer tank; once that’s depleted, I switch to an instantaneous water heater. I use electricity from the battery first; when it’s empty, I buy additional power. At the end of the year, the total purchase and feed-in amounts are balanced out.
ypg schrieb:
In winter, or when the photovoltaic system doesn’t produce enough due to bad weather (in summer it should cover your consumption), you have to buy additional electricity for heating and general use... at a higher price than what you get for selling it?
...exactly
I can feed in electricity at 11 cents per kWh (this rate is legally guaranteed for the next 20 years).
When the sun is shining, I heat my buffer tank and charge the battery.
When the sun isn’t shining, I use the hot water from the buffer tank; once that’s depleted, I switch to an instantaneous water heater. I use electricity from the battery first; when it’s empty, I buy additional power. At the end of the year, the total purchase and feed-in amounts are balanced out.
Vogtländer23 Feb 2015 00:25I receive 12.50 cents per kWh fed into the grid, I just double-checked...
Vogtländer schrieb:
I use the hot water from the buffer tank, and when that is depleted, I switch to an instantaneous water heaterWill you then have an instantaneous water heater at every hot water outlet?
The buffer tank should be depleted quite quickly if several people use hot water in the morning...
Do you have to pay tax on the income of 12.5 cents? I think so, since as a business owner you probably need to submit a monthly balance sheet/income statement?!
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