Thank you for this mod, I was also thinking of making something like this.
Few thoughts/suggestions:
- Perhaps consider compatibility with https://mods.factorio.com/mod/basic-chemistry , from my perspective that mod does a great job making a believable production of the boards for the greenz
- Could buildings which generate power also need copper coils, or at least copper cables
- robot port type buildings should include batteries

I will add compat with basic chemistry, it is perfect, and I can try to balance it as well. that may be a good one to rebuild an extended early game that respects space age and does not need to be skirted around constantly. :)

I'm hesitant for power generators for a moment, because then I'll have to adjust at least (nuclear winter)[https://mods.factorio.com/mod/frozeta-nuclear-winter] because of the steam turbines. I already know that it probably breaks rubia, but hopefully not that much.

For bots, I want to target the electric engine somehow, but it is unclear to me for now. I may also want something with engines, but that is also a little bit unclear.

Targeting the engine unit is also something I'd want but also unclear because it matters for fulgora.
I don't want to target batteries yet, because it is too important for both fulgora and cerys. (targeting circuits already may need an increase in iron for that mod)

I want to at least keep space age in mind and control for the damage it causes when I'm doing anything with it.

Added an intermediate to generators, the release is not done yet.

Added very simple integration with basic chemistry. I don't think it's enough but anything more requires a dedicated burner phase, the technologies are already too crowded at the start.