For some reason, whenever something overheats and gets replaced, it causes most of my capacitors to stop working, making it more or less reach max capacity in a few seconds, then completely drain a moment later.
I do like the concept, and the game (for the most part) isn't that bad, though I think that in the future, it would be kinda cool to implement an upgrade system. By this, I mean when you are ready to use the next tier of, say, fans, you can use the 2nd tier and replace the t1 fans with it if you have enough money, so that way they aren't taking up space.