The belt rides the world's morning and never lets it end, then pours the sunrise down into the dark.
An artistic imagining, rendered procedurally, of a belt of solar collectors riding Earth's dawn line - an orbit along the terminator where the wings never once pass into shadow, and the harvest is beamed down through the sunrise onto a rectenna field on the night side. Dawn/dusk sun synchronous orbits really are nearly always sunlit, and beaming space power to a ground rectenna has been studied since the 1970s, but a continuous belt like this one is pure speculation.Image: poweringspace.com. Artistic imagining.