Our solar panel rack also functions as my wash line. It might look silly, but it works. The rack keeps most of the rain off the clothes.
Quite truthfully, I didn't really plan it this way. It just came about out of necessity and procrastination. I keep meaning to build a solar dryer for the clothes, but I haven't gotten around to it yet. It just isn't high in my priority list now that I'm using the solar panel rack.