The DOE has a similar project on a larger scale. Typically in these designs the fuel comes with the reactor, along with everything else: it is a sealed device.

The DOE has a similar project on a larger scale. Typically in these designs the fuel comes with the reactor, along with everything else: it is a sealed device. Once the fuel is spent, the reactor is shipped back to a plant, the waste disposed, and the case recycled and refueled.