The Radioisotope Generator is a simple way to generate passive power from leftover fuels. It does this by harnessing the radioactivity from such. An example of this is illustrated below. The power generated depends on the amount of radiation, therefore also the stack size. It outputs power from both the bottom and the top of the machine. This means that you have to use two cables to harness all the power. Radioisotope generator does not currently emit radiation.
Uranium 238: 75W per piece, 4.8 kW per stack
Uranium 235: 150W per piece, 9.6 kW per stack
Plutonium 239: 675W per piece, 43.2 kW per stack