I personally feel as though the naming of the different quality tiers seems a bit odd and more RPG-like, which doesn't really fit Facotrio in my eyes, so I came up with an idea on how to name them:

Uncommon -> Improved
Rare -> Advanced
Epic -> Evolved
Legendary -> High Tech

I hope you like my ...

Sorry if my English is bad (I'm not native English) and this is my first post ever,
the reason I'm suggesting "Windmills" is because I feel like there are almost no ways of getting power. Just the four standard: boilers, solarpanels, accumulators and the new nuclear reactor. But I still feel like it ...