Anno 2070 has kindoff a Solarpunk vibe if you play the ecos or a Cyberpunk if you play the tycoons. The setting is not 100% on point, but it is still a great SP game
Terra Nil is a Solarpunk game where you have to regreen the earth.
Tomorrow Land is really good film about the hope we need to create a better society
That's a good one. I actually just started reading this (like, I'm on chapter 3) and then I heard the author on the Solarpunk Now! podcast, and it sounds like the book goes some amazing places.
I'm currently reading the Glass and Gardens solarpunk anthology (thanks for the reminder) and I'll let you know if I think it's a good fit for FA! So far I've read two of the stories and liked one quite a bit.