ᐅ Photovoltaic System: Costs and Savings Potential – Experiences?

Andre77 schrieb:

Is it possible to program the system so that the surplus is not fed into the grid? It should only supply the heat pump. Doesn’t anyone (utility provider) notice that the initial meter reading is higher than the final reading?!

It can be programmed, but the appropriate modules (e.g., Home Manager) must be available for that. But if the meters are already installed anyway, why give up the feed-in tariff?

When connected to temporary construction power, there is no compensation anyway. A setup meter is installed there, which usually has a non-return valve. If not, as mentioned, it is technically "not allowed." If photovoltaic power is available, the meter simply won’t run.

At the inverter, it may be possible to disable the feed-in (for example, by setting the 70% limit to 0%).

@CrazyChris

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

Andre77 schrieb:

@CrazyChris
An SMA Home Manager would be included anyway because of the south-facing orientation and specifically for the heat pump.

Can your heat pump also work with the SHM2.0?
In our setup, the SHM controls our heat pump, but we only increase the domestic hot water temperature, while the underfloor heating is raised by just 0.5°C (0.9°F). When the sun is shining, the temperature inside the house—just due to sunlight in the living room, for example—reaches around 27°C (81°F) like yesterday.

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

Congratulations on the photovoltaic system!

Is there still some space left on the roof? Was there any shading in that area?