And before I write scripts to optimize the usage of the battery, I need to add a better PV forecast. The one from "Forecast.Solar" build in in home assistant has been so much off in the last days, that it wouldn't be a useful source.
And so far quite surprised how much energy we harvest. Being in the fall now we didn#t expect that we still get ~1/3 of our power from the sun, especially with the low angle our panels have.
But designed and printed an air guide and fan holder for the #solarFlow 800 pro we use. Yes, it is probably not needed, but having it won't do any harm.
Never heard that electronic dies earlier if temperatures are a bit cooler and with only a mit PETG and a simple and cheap 12V fan needed...
Edit: And yes, putting the fan on the inside would have been better looking. But placed some supports there and we usually don't look in that corner, so it probably stays that way. Redesigning and printing is not worth it.