Fiction

There's Ecotopia, by Ernest Callenbach, which would probably qualify as ptoto-solarpunk at the very least, preceding the genre by a few decades as far as I know. I don't know how much it influenced what came later - I don't see it mentioned too often - but it has all the elements, even if it's dated in a few places. It's not exactly a regular fiction novel, but is formatted as a Travelogue and journal entries of an American reporter who has been allowed into the fictional secessionist west coast society of Ecotopia. It's well written but the plot is mostly there to explore a society that put the wilildist dreams of 1970s environmentals into practice, along with the challenges and problems they'd run into. It devotes sections to almost everything you could want in a solarpunk setting, from social justice, walkable cities, rail transportation, the right to repair, sustainable timbering and rewilding, and a revolution that turned most businesses into co-ops owned by their employees after the rich fled to the US rather than pay Ecotopia's higher taxes.

It's from the 1970s so climate change doesn't come up - in fact their focus on avoiding plastics and other undecompostable materials struck me as being a bit energy-wasteful in parts, but it's worth it to read this reporter describing recycling as this new and exotic concept.

Organized into articles the narrator sent east for publication, and his own journal entries, the book is organized into chapters titled things like "Ecotopia Television and it's Wares" or "Car-Less Living in Ecotopia's new Towns" with each section staying on topic well enough that you could almost quote from it on most issues like some kind of solarpunk bible. (Edit: which I actually kind of did here, near the end, if you want a sample of the writing: https://slrpnk.net/post/379197)

So I'm not sure if it'll be a good fit, but if you run out of everyone else's suggestions I'd say it's worth a look.