Kerbal turns on solar power once
Most of my unmanned stuff - survey, comm relay & science sats - are made to go anywhere, so they typically have some solar & a small RTG or two. I can''t remember which mod it''s from, but I have a small, low-cost & mass RTG that puts out ~0.1 ec/s, looks kinda like somebody cut a slice off the top of a stock RTG.. I stick them on just about everything once …