ᐅ Air-to-Water Heat Pump: Current Consumption and Data

guckuck2 schrieb:

They tried to prevent this by excluding new builds from the subsidy. But it’s easy to bypass.

Would you mind sharing the method to bypass it? 😉

netuser schrieb:

Could you share the detour route? 😉

Have an electrician install the cables (or conduit), then after completion simply order the wall box, have it connected, and enjoy the subsidy.

Bookstar schrieb:

There are already offers where the battery storage is economically viable.

No.

Bookstar schrieb:

Since I only have a limited roof space (south-facing), I’m also hoping that the modules will become more efficient. I would like to have more than the currently possible 7 kWp on my house.

Currently, standard modules (1.7 x 1.0 m (5.6 x 3.3 feet)) provide about 400 watts. I think that’s quite decent. But do you have any other roof areas? North-facing roofs with a pitch under 30°? Garage, carport, garden shed? Even partly shaded areas can be economically viable. You can roughly estimate this with PVGIS, and for more detailed calculations, including shading patterns, with Photovoltaic-Sol.
If economic viability is not the main requirement, south-facing walls are also an option. They can especially support heat pumps during the cold winter months.
There are options. The best approach is to explore them in the photovoltaics forum.

Deliverer schrieb:

No.

Currently, we have 400 watts with standard modules (1.7 x 1.0 m (5.6 x 3.3 ft)). I think that's quite good. But do you maybe have other roof areas? North-facing roof with a pitch under 30°? Garage, carport, garden shed? Even partially shaded areas can be economical. You can do a basic calculation with PVGIS, and for more detail, including shading patterns, with Photovoltaic-Sol.
If it doesn't necessarily have to be cost-effective, south-facing façades are also possible. They especially help the heat pump during the deep winter.
There are options. It’s best to explore them in the photovoltaic forum.

Well, it should also look good; I definitely won’t cover everything with such modules. But thanks!

4lpha0ne schrieb:

I’d like to see the calculation, but preferably in another thread. This derailing has been going on for a while now. 😉

See #1106.

If the storage system is too large, and the photovoltaic system and basic consumption are too small, it becomes a losing investment.
And even if it financially makes sense for the owner at KfW 40+ standard, which is possible, the poor environmental balance and the cost to taxpayers remain an issue. You have to like that.
In my opinion, the money would have been better invested in further development toward passive house standards.

Deliverer schrieb:

In my opinion, the money would have been better invested in upgrading towards a passive house standard.

How so? In this area, insulation costs are disproportionately high and never pay off. Even KFW55 (a German energy standard) is financially nonsensical without subsidies. The obsession with insulation only works with government incentives anyway.

I’m saying a good gas heating system plus decent photovoltaic panels is the best for both the climate and your wallet 🙂