In the West, the cost of labor makes that unappealing. From a DIY standpoint it'd still be a pain. Those things are heavy and usually require at least 2 to 4 people to install or move. It's not something you'd want to do regularly if avoidable.
I imagined then being panels on like a hinge that you like unbolt, tilt a little and then bolt down again. I didn't know it would take multiple people to do it.
Yeah, you could maybe design something like that. It'd still be quite a lot of work to go through all the panels one at a time every few months, though. And doing the math to remember what angle to point them at would be annoying and error prone.
