Consultation for photovoltaic systems

We only have the battery because of the requirements for Kfw 40+. And more than 14.4 kW of photovoltaic didn't fit on the roof. I didn't really optimize much but just followed a few 'brute-force' approaches: lowering the heat pump by 2° at night, scheduling hot water only during the day, connecting the washing machine & dishwasher to hot water – that's about it. As far as possible, we make sure to run the washing machine & dishwasher when there is excess photovoltaic power, but that's more athletic ambition than really relevant.

That's basically it. Just arrange a home office Wednesday with the boss, then most of the commuting distances can be covered by photovoltaics. That really pays off in your wallet.

Full cycles are calculated from charging energy/storage capacity or do I have to read them off?

In my opinion, the discharge amount, i.e. losses already deducted. That is how my value is also calculated.

Who has currently received offers? I have quotes for 10kw with installation between 16k and 20k euros. That is definitely too much and no, the prices are without storage. I hope that in the one forum the form will be unlocked again soon.

If that still doesn’t work, I’ll install it on the roof myself.

That's really too much. The offer from the forum was pretty good though, once it was finally available. It's definitely worth asking there. If you mean that with the form.

The question is whether and when it will become cheaper again. My electrician just said that although he has no problem getting the panels, he cannot get the aluminum profiles. He has to buy them at high prices through indirect channels. If the first cities, states, or even the federal government activate the solar obligation, I expect prices to rise during this legislative period. Probably the only help is to compare more or do the installation yourself.