Jerry Stuckle wrote in news:m36bbu$pou$1@dont-
email.me:

I also don't know how steerable the solar panels are - but I would
expect them to be somewhat steerable.

That;s something I did see once, I think on a BBC article. They are a bit
like louvre windows, fairly limited movement of each panel on its own axis,
but enoughm given the gaps between their edges. And I think an entire branch
array can be rotated on its own axis too, but I'm less sure about that bit.