DRJ, this is a good question
I don’t know is the answer.. I would have had a nose up the scaffolding but don’t like heights, i thought the only way was with brackets hooked under the tiles somehow.. part of the reason id like my mate to get up and have a quicky snoop, as i literally couldn’t 😀
if you want to see a decent example of battery control, take a look at “predbat” and there should be some examples of the regime, mine is pretty simple being on flux, just charge as much as estimated to need overnight, although to fill with solar, discharge everything that isnt needed at peak, remain on battery until next charge period, excluding free periods (fill to max capacity in the window, or saving sessions, which dumps as much out). the more interesting agile plans can go up and down throughout the day