Photovoltaic system 120 sqm living area - cover the entire roof?

Then that was the old funding, which unfortunately expired months ago.

Correct. That was the "old" 1000 storage funding from last year. ;) Otherwise, I would have waited first.

an American car manufacturer from Grünheide has announced a dynamic electricity tariff, initially only in connection with its storage system.
No longer fixed 7ct / 32ct, but cheaper for the customer.
Maybe this is the start for dynamic electricity tariffs and refunds from 1 - 20ct, depending on the time of day or electricity market trends.
Then the entire calculation of profitability changes.

Let's see. As long as the gentleman, let's just call him Musk, only requires a storage system from his company, it would work for me.

the announcement is,
its storage and photovoltaics

the announcement is, his battery and photovoltaic

Then I'm out for now :cool: (the country needs enough characters).

wait and see exactly what the Tarif AGB states

Connecting a photovoltaic storage system to the spot market is an economically interesting idea, because then you charge the storage not only with the sun but also during less productive times through the grid when electricity is cheap, to then use it when electricity is expensive. For this, the storage system needs not only an appropriately intelligent management system but must also be capable of charging AC coupled. The concept is very interesting - but do not expect it to be available to every storage owner. A coupling of device and tariff is technically and economically logical - at this point, one cannot seriously blame Mr. Musk.

Photovoltaic ideally as large as possible for the environment!

I find the goal good.