>Given how such a small percentage of US energy is solar, if it required more man power than coal plants I'd take it as a sign that we're doing something seriou

>Given how such a small percentage of US energy is solar, if it required more man power than coal plants I'd take it as a sign that we're doing something seriously unsustainable in the way we do solar. Solar is very capital intensive - making the panels & deploying them - but operationally very, very cheap (all you have to do is give the panels a wipedown every so often). By the time solar is a large percentage of US energy it will probably still employ a similar number of workers. It's kind of like writing code in that respect.