In interstellar space there is no temperature differential for that solar cell scheme to work from. It only works when there is something that is heated by the sun part of the time, and radiates heat into space the rest of the time. Maybe the far (“dark”) side of the moon counts for that, but for a moon station you probably want batteries or RTG’s or whatever. I’m sure there are uses for this thing but they sound very niche. Radiating heat into space on hot nights on the other hand is quite interesting, as an alternative to air conditioning.