I think the direct electrical generation is a niche application and most likely a scientific curiosity. The commercial application of space cooling sounds much

I think the direct electrical generation is a niche application and most likely a scientific curiosity. The commercial application of space cooling sounds much more exciting as a way of cooling without electricity. It would also be interesting if they could use the cooling effect to cool a working fluid and use that the run a turbine. Choose the correct working fluid that will expand at ambient. Such design may have higher energy density per area. And would work all year around.