My friends and I have been thinking that there are lots of items with "small", "medium", and "large" in their titles, but there aren't always all three of the same thing. There's a small solar and a solar panel, but it would be helpful, more comprehensive, and more consistent if there was a large solar as well. Other examples:
Large Storage and Medium storage but no small storage(could have 4 slots instead of 8)
Small fabricator and medium fabricator but no large fabricator(could make a large hab like the one starting on terran)
Small battery and Medium battery but no large bat