Photovoltaics - Questions about Tax/Business

So wait and see or First Come First Earn?

You have to ask Altmaier, but apart from hot air, you don't get much at the moment. The fact is, you are still guaranteed to be compensated for 20 years now.

The mentioned "link" also says something about "FALSE: photovoltaic power can only be used either for the household OR only for the heat pump or night storage."
Someone claimed that last weekend as well. When can you use both?

You can connect the meters in series (google "measurement concept 9" or "cascade measurement concept") and then that is indeed possible. However, you will certainly have to expect resistance from your grid operator.

Of course, you can use it for both. In an energy-efficient new building, the heat pump and the household electricity are also not separated.

Not even if you want to have a special tariff for the air-water heat pump? Or are these not worthwhile?

If your entire system planning is bad and the air-to-water heat pump has to run constantly, then it is worth it. If you have a reasonably sensible planning and implementation, then rather not.

In an energy-efficient new building, the heat pump and the household electricity are not separated either.

Why not? Ideally, you want a different tariff for the heat pump electricity than for the household electricity.

If your entire system planning is poor and the air-water heat pump has to run constantly, then it is worthwhile. If you have a halfway reasonable plan and implementation, then rather not.

That has nothing to do with how the system is designed? A heat pump tariff is always cheaper than the normal household electricity.

Why not? Ideally, you also want a different tariff for the heat pump electricity than for the house electricity.

No, you can figure out what that brings you. In an energy saving ordinance house, you might save 30-40€ with 2 meters, but with KfW55 and a ground-source heat pump, you will definitely pay more. Basic fee, meter fee... just because the kWh is 5 cents cheaper doesn't mean it pays off.

No, you can figure out what that brings you. With an energy saving ordinance house, you might save 30-40€ with 2 meters, with KfW55 and a ground source heat pump you definitely pay more. Basic fee, meter fee... just because the kWh is 5 cents cheaper doesn’t make it worthwhile.

Ah, I hadn’t thought about the meter fee and basic fee.