Geyser Power Generator.
I've seen them on Desoro, Glacio and to a lesser degree Atrox. It would be a module that would have to be installed on top of a geyser or fume elimination point, then you would have to run the power to where ever your station is. In the case for Desoro and Glacio, the actual pressure from it would allow for the power, while Atrox you would actually harness the fumes passing through the surface.
This is just another alternative power source, especially in the case of Atrox where it's extremely limited from the get go.
If we ever seen running water in the game, it could then be converted to utilize that as energy as well.