Psono? Its selfhosted but they also have a free service https://psono.com/

What is the .claude folder?

Propaganda

He’s a facist.

I had an electric water tank for some years, it did only heat during 4h a day splitted in 2 morning and 2 afternoon, thats more than enough. Just install a temperature logger so you keep track of the temperature. In terms of batteries, they are too expensive for a normal use, invest on a few more panels and try to reshape your consumption.