Solar PV is intrinsically scalable from microwatts to hundreds of gigawatts, or even larger. There were and are markets at all of these scales.[1] That's what

Solar PV is intrinsically scalable from microwatts to hundreds of gigawatts, or even larger. There were and are markets at all of these scales.[1] That's what allowed its development. The space industry funded early development, Japan and then Germany funded early-mid adoption, and then China saw an opportunity to take leadership in the transition away from fossil fuels. So it goes. 1. Well, so far, only tens of gigawatts at the upper end in commercial operation, but it's just a matter of time before we get to hundreds. There are no engineering or regulatory problems.