oh, I'm on laptop. Maybe the trackpad disables shift. Oops!
How I thought of it was: If the left one is fully powered, the right one gets the excess. If the right one is fully powered, the left one gets the excess. if both are fully powered, it doesn't really matter where the excess goes
It's just an idea I had. I wouldn't be angry if you didn't take the suggestion of some random stranger.
Oh, not to be the kid who says "what about the homework," but the descriptions of the defensive structures don't have the correct values for the energy requirements. I sincerely hope that the descriptions are flawed rather than the implementation, because I don't know if I could get through the cave when the minimum power for a defensive structure is 20/s