I feel like there should be a built-in way to make a Radioisotope thermoelectric generator to produce power. You *can* make an RTG by putting a Cf-250 & Pu-238 pellet and put a heavily shrunken small turbine together and seal it to make an RTG because of their self-heating properties, though the addition of a built-in RTG feature could allow other isotopes (Sr-90) to be used to make electricity.

Here is a universal RTG design (pu-238 & cf-250 can be swapped together) that produces electricity. https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2491060736