At the moment the DEVS and the players have a problem. No matter how you make the priority chain for the power blocks it is wrong. If you use: Solar - battery - reactor Batteries do not consume good uranium if the reactors are just for backup. But some constructions without solarcells like the Stinging Adversary can not reacharge the batterys. If you use: Solar - reactor - battery Batterys are always charged but you use up the uranium befor the batterys are empty and so on and so on. There is always a ship that needs batteries not charged from the reactors and one that needs it. Therefor my idea: Give each powersource a new button to prioritize it. I would suspect a dropdown with the numbers 1 to 6. (That gives you a little room) So every ship can arange its powersources as needed. So if you want power to be drawn from solarcells first and reactors not to charge batteries ever you give Solarcells - 1, Batteries - 2, Reactors - 3 If you want one battery to be allways charged as a last resort you could give that single one a 4. Examlpes: You have a military ship that is running on uranium and has some batteries for backup. No problem: Reactors-1, Batteries-2 You have a eco ship that has a nuclear reactor just for emergency backup but its manuall activation is not possible/ to slow? - No Problem. Solar-1, Batteries-2, Reactor-3 I hope the idea is easy enought discribed. If not just ask. And now to all how like it say so and all how don´t say so too and if possible tell me why.