Have you looked into radiative cooling and the next gen solar panels that generate energy at night? Look into Jeremy Munday from UC Davis.

Hi there
I have looked at both of these methods of power generation. My design is using much shorter wavelengths to generate power.

We can use double face solar panel to optimize generation efficiency

Have solar on one side and something different on the other, is part of the answer.

That's right Daniel

A 20 year plus design concept, is convert cm wavelength and nanometer wavelength direct into electrical power, a test I did with this concert is about 95% efficiencies . No atmosphere , what is all around you, is the answer to limitless power for probes and stations. With out nuclear materials , and there limited operational power.

I might mention that the design of any system for the lunar environment must as a first order requirement address the radioactive particles that vary significantly from Solar behavior cycles. I find it hard to envision any solution that doesn't start with the appropriate shielding. Whether above or below the lunar surface.