Photovoltaic system: Costs, saving potential? - Experiences?

can't something like this be programmed so that the surplus is simply not fed in? It should only supply the heat pump. But doesn't anyone (supplier) notice that the starting reading is higher than the final reading?!

It can be programmed, but the corresponding modules (e.g., Home Manager) must also be available for this. But if the meters are present anyway, why give up the feed-in tariff?

There is no compensation anyway when connected to the construction power. A setup meter is installed there, which usually has a backflow preventer. If not, as mentioned, it is "actually" not permitted. If photovoltaic power is available, the meter simply does not run.

It might be possible to disable the feed-in at the inverter (e.g., set the 70% limit to 0%).

An SMA Home Manager would be included anyway, because of the south orientation and also for the heat pump.

An SMA Home Manager would be included anyway, because of the southern orientation and of course for the heat pump.

Can your heat pump also work with the SHM2.0? We have it set so that the SHM enables our heat pump, but we only increase the hot water, the underfloor heating only by 0.5K more. When the sun is shining, it is 27°C in the house just from the sun in the living room, for example (yesterday).

Our system was commissioned today.
9.72 kWp east/west on flat roof and carport mounted.
SMA inverter with IBC Solar modules and substructure.
Net €12,500 complete.

Congratulations on the photovoltaic system! But there is still some space on the roof, right? Was there any shade there?