I got plenty of fuel, plenty of slacking freighters, my production is above my demand my stations have fuel tanks, but none of my stations ever get fuel. Which mean, they can't properly defend themselves.
Still they require both fuel tanks and generators, or would stuff them with energy collectors instead to solve the problem.
It seems no ones complained about the situation, so it has to be a me problem, but what's wrong?
Hopefully, someone will read this someday…
Edit:
I got my answer on steam forums. It's working as intended. Disappointing, but it's how it is.
https://steamcommunity.com/app/1531540/discussions/3/3805029641874031058

Energy collector fill up reactor energy storage when in system. Faster when closer to a center with star. You can put more reactors to get that buffer in fights. In combat there is always a chance that collector get hit so it need at least one EC more that the desing suggest.