https://docs.google.com/spreadsheet/ccc ... n_US#gid=0
I made this when I was very much interested in BA some years ago. I haven't updated it since, however I think it might still be useful (it should be easy to plug in modern values if you've changed anything).
If you haven't done anything like this recently, I suggest you do. It can expose weird bugs like how the Core Underwater Moho Mine was way less efficient than the Arm one (or even the non-underwater one), which I don't think was ever actually fixed.
It also helped me learn that there were certain maps with tidal efficiencies where building a swarm of construction boats was better than actual tidal generators :D
A spreadsheet on BA econ balance I found