I think this is really interesting! I don't know if it's because I ended up with negative Energy, but I ended up not being able to do anything, even though I'd like to shut down my energy drains. My guess is that the 0 cost is being treated as a value that's a lot higher than the -1320 energy I have, so i'm stuck at this point, at least until the water levels rise? gonna get rich as heck at least :P
I think this has the potential to be pretty fun with other people, though right now the AI doesn't seem to contribute anything interesting. Really love this as a start to something though!