ᐅ Is a photovoltaic system with storage and additional solar panels mandatory?

We have planned a 10 kWp photovoltaic system with a 4.6 kWp battery storage as a home power solution for an air-to-water heat pump.

Additionally, the consultant offered us a solar system that, according to the Energy Saving Ordinance, would be mandatory for a 40+ house. When we asked if this was correct, we were referred to a specialist for further review, whom we will only meet after signing the contract. This photovoltaic system costs around 3,500 € and we would simply like to exclude it.

Is the consultant’s statement correct that this is mandatory? If not, then it should not be a problem to leave it out.

That is nonsense and, when combined with an air-to-water heat pump and photovoltaic system, also quite impractical.

You mention two photovoltaic systems, so which is it?

He definitely meant the solar system with that.

Exactly, photovoltaic system combined with solar thermal system

Solar power systems also include photovoltaic systems...

This is basically the general term, right? They are all solar power systems, including this one here: