Hi, thanks :)
I’m trying to reproduce the issue.
If I understand correctly, your factory is running in a steady state, but the energy surplus is slowly decreasing. Is that right?
Did you play in the brower or downloaded the game?
Roughly how long does it take for the surplus to drop by 0.01?
During that time, did you avoid switching machines on or off?
And did you avoid digging as well?
I played in Browser (Firefox), Steady state, I started switching machines off since I was running out of energy. Didn't seem to influence the loss. I will trying to replicate and see how long it takes between the drops and if I see any correlations to actions taken in game.