Experiences with Caterva Sun battery storage

Correct, E3/DC that would be the alternative, why not Caterva after all, no trust in the company or the 1000.- annually? They just don't offer a cloud... you buy through Klarsolar, price?

So I'm not the OP, so Caterva was never an issue for us, I just wanted to say that we decided on E3/DC, for me it was simply the most coherent product. For the E3/DC we pay €12,500.-

Sounds good the description, with 15 KW inverter and 10 KWh battery... just no cloud so that I can use the extra power in summer and winter, for that the Sonnen-Community is suitable again, what do you think about that?

So I'm not the OP, so Caterva was never an issue for us, I just wanted to say that we chose E3/DC, for me it was simply the most coherent product. For the E3/DC we pay €12,500.-

With which battery size, 10 kWh or smaller .. with emergency power in case of a power outage?

Battery size 10.56kWh and with emergency power

Sounds good, the description with 15 kW inverter and 10 kWh battery... only there's no cloud so I can use the excess power in summer in winter, for that the Sonnen-Community is suitable again, what do you think about it?

Nothing. That's a 20-year prepaid tariff, an expensive one at that. Don't do it.

The E3/DC is not bad. At least with that you can exchange the software to adjust the poor charging management (see known forum). Unfortunately, many storage systems suffer from that too, bad software. Chief among them, by the way, is the savior Tesla, whose Powerwalls are simply outdated. Others are significantly ahead.