I think you got a great idea! The game is already fun right now, but if you want some thoughts about it I can give an idea I had. I went to floor 5, so I don't know if I've missed things, but right now the double counter feels under-used. If there's one minute between both counters, then it means you have to keep the power off for one minute, and that's it. But there could be events that increase the backup timer, like the enemies sending troops to slow the backup, and maybe you can somehow hack their communication when they try to send these troops so it will cancel the backup slowdown.
I understand it's a jam and time was limited (and I don't know if that idea can be good), I just wanted to give you a thought. Good job for the game, it's cool!