Sometimes I have weird fantasies about a post apocalyptic world where factories burned down and people have to live with the tech that’s available. No network, just off site solar power or generators, only local devices. I think it’s interesting to think about how far we could get with this.

Does anyone have recommendations for novels, movies or video games with that topic?

Pump 6 and Other Stories has a few in that vein, sort of. Eg there are no petrol engines, instead compression springs, treadle operated computers, etc. There are some pretty grim stories in there, some may find them distasteful.

https://windupstories.com/books/pump-six-and-other-stories/

Also I guess Silo / WOOL by Hugh Howey is perhaps closer to what you wrote literally but probably not quite the vibe maybe.

Not fiction but you might find this interesting: https://collapseos.org/why.html

Besides published material, Cuba comes close. Kept frozen in time by eternal restrictive sanctions.

Not exactly what you're describing, but https://en.wikipedia.org/wiki/One_Second_After kinda fits the vibe. Warning: it's really depressing, but a good read if you're in the right head space for it.

I suspect it might be too ‘soft’ for a lot folks around here (sadly), but “Monk and Robot” is charming.

In general, you should look into the ‘solarpunk’ genre, especially post-apocalyptic solarpunk.

Book of Eli has vibes along those lines