The company I work for builds small solar collectors to power appliances in emergencies. They decided that since they had the expertise in the collectors and electronics for building yachts, had the fiberglass people to lay up the shells, and had the electricians to do the wiring...why not make a small portable device that can be helicoptered into disaster areas for FEMA. So that is what they do now, make these unit. You can check them out on this website, by clicking the Solar generator link at the top right hand side of the page.
As for being green, I am only green when it comes to saving green. Unfortunately I married a woman with a degree in Environmental Science and Marine Biology so this long time certified logger often spars with the Mrs over green issues.
I still can't diffuse the idea of heating my woodworking shop with compost heat, and am in hopes to get that idea up and running sometime this Spring.
As for powering an entire shop with solar power...as most people quickly find out, power from the grid is VERY cheap. My uncle has a windmill and by the time the thing is paid back by energy savings...even at Maine's high 15 cents a kw rate...it will be 12 years down the road...and time for a new windmill.
I have no intention of traveling from birth to the grave in a manicured and well preserved body; but rather I will skid in sideways, totally beat up, completely worn out, utterly exhausted and jump off my tractor and loudly yell, "Wow, this is what it took to feed a nation!"