Wouldn't they?

You would put these in polar orbits so they are always facing the Sun. Basically the longitude would follow the Sun (or the terminator line, whichever you prefer), and the latitude would oscillate from 90°N to 90°S and back every 24 hours.

From the linked article:

> By directly harnessing near-constant solar power

Implies they would not spend half of their time in the dark.