ᐅ Installing a Photovoltaic System with an Air-to-Water Heat Pump?
Created on: 2 Apr 2022 14:05
H
hauskauf1987
Hello everyone,
We recently purchased a house from the developer, and the selection appointment is coming up soon.
Basically, we plan to stick mostly to the "standard" options due to our budget.
The house is equipped with an air-to-water heat pump. In the special requests catalog, there is a photovoltaic system listed for 10kW.
As a layperson, I have the following questions:
- Should we have it installed? Will our electricity then be free in the future?
- How are these systems subsidized or supported?
- Does it make sense to install one?
Thanks in advance for your help.
We recently purchased a house from the developer, and the selection appointment is coming up soon.
Basically, we plan to stick mostly to the "standard" options due to our budget.
The house is equipped with an air-to-water heat pump. In the special requests catalog, there is a photovoltaic system listed for 10kW.
As a layperson, I have the following questions:
- Should we have it installed? Will our electricity then be free in the future?
- How are these systems subsidized or supported?
- Does it make sense to install one?
Thanks in advance for your help.
D
Deliverer2 Apr 2022 17:29A fully covered roof is the only sensible choice. From both an ecological and economic perspective, anything else would be nonsense. You can find information on this from sources like the Federal Environment Agency, the Fraunhofer Institute, and many other reputable organizations, although unfortunately, these cannot be cited here.
The support scheme is called a “feed-in tariff.” Currently, depending on the size of the system, it offers around 70% funding. Until about a year ago, it was still 100%. That was already quite substantial compared to any other form of support. But yes, I also hope that the rates will increase again.
The support scheme is called a “feed-in tariff.” Currently, depending on the size of the system, it offers around 70% funding. Until about a year ago, it was still 100%. That was already quite substantial compared to any other form of support. But yes, I also hope that the rates will increase again.
@[B]Deliverer
Keep dreaming. Just because you might install 60m² (650 sq ft) instead of 30m² (320 sq ft), your self-consumption does not change.
That means with the same self-consumption benefit and continuously increasing system costs, the share of your own usage actually decreases.
The 70% figure only applies relative to the efficient system size.
What citizens politically want is clear, and so is the motivation.
However, in reality, only a power mix still reaches the outlet, and heat pumps only became economically viable after the latest energy saving regulations for a reason.
At least theoretically, if you consider a primary energy factor of zero. 🙂
The feed-in tariff is basically useless, not a subsidy, but just something to compensate somewhat for the minimum 70% losses.
And if you look into the topic, you will know who Andreas Schmitz is. Nobody can get more out of it than with DIY and scientifically proven methods.
Keep dreaming. Just because you might install 60m² (650 sq ft) instead of 30m² (320 sq ft), your self-consumption does not change.
That means with the same self-consumption benefit and continuously increasing system costs, the share of your own usage actually decreases.
The 70% figure only applies relative to the efficient system size.
What citizens politically want is clear, and so is the motivation.
However, in reality, only a power mix still reaches the outlet, and heat pumps only became economically viable after the latest energy saving regulations for a reason.
At least theoretically, if you consider a primary energy factor of zero. 🙂
The feed-in tariff is basically useless, not a subsidy, but just something to compensate somewhat for the minimum 70% losses.
And if you look into the topic, you will know who Andreas Schmitz is. Nobody can get more out of it than with DIY and scientifically proven methods.
D
Deliverer2 Apr 2022 18:05I’m not dreaming, I actually have the home ;-)
50% self-sufficiency without storage. Just under 30 kWp. The system will be paid off in about 9 years, assuming electricity prices don’t rise.
And Schmitz has already expanded once, and I bet there will be more additions when he realizes how great it is to run his air conditioning with more of his own electricity.
What is certainly true: building your own system pays off very well. If you can, you should do it!
50% self-sufficiency without storage. Just under 30 kWp. The system will be paid off in about 9 years, assuming electricity prices don’t rise.
And Schmitz has already expanded once, and I bet there will be more additions when he realizes how great it is to run his air conditioning with more of his own electricity.
What is certainly true: building your own system pays off very well. If you can, you should do it!
@parcus One thing has nothing to do with the other. I've watched countless videos from Schmitz and never saw any "mistakes." But I also never saw any point where he explicitly says to only install a small system on the roof. Especially not after installing his split air conditioning systems 😉
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