Install photovoltaic system with air-to-water heat pump?

The topic of photovoltaics should be promoted much more in general, because currently there is practically only a KfW subsidy available through the "back door." I have not been able to understand so far why our Minister of the Environment has not become more active in this regard. Let's wait until Easter to see what the hare hides :)

In fact, regulatory intervention in electricity storage systems is also necessary. If you compare them with a Zoe or a Spring, you might even be able to buy the cars cheaper than a home storage system.

Feed-in tariff is supposed to be significantly increased

According to the current draft law, only for full feed-in operators. Then it depends on the price per kWp and the yield (kWh/kWp) whether the return will be higher than the loan interest rates. For a very small system under €10k, that is questionable. It looks different with surplus feed-in, as it will be a gamble how electricity prices develop. The remuneration remains at an abysmally low 6.75(?) cents per kWh. Everything revolves around maximum self-consumption. As said, the original poster should better leave it alone and manage their finances without photovoltaics.

Especially since the orientation of the roof also comes into play. For a new building, this is certainly a major criterion, such as possible shading.

It is a photovoltaic system of 5.6 kW without storage. Nothing more is stated in the current special request catalog.

Don't worry about our finances, the stomach aches have long since passed away ;-)

10k for 5.6kwp is too much. Please read the many relevant threads on this topic in this forum. Roof full!! is the correct answer. But the developer usually doesn’t do that for a reasonable price.

Thank you for your answers. But should I have cables installed? Or is it easy to do at some point in the future?