Well among other things, one problem to solve is, how to control the output power. If you were to just charge a bunch of nuclear isomers, they'd afterward relea

Well among other things, one problem to solve is, how to control the output power. If you were to just charge a bunch of nuclear isomers, they'd afterward release the energy by a regular decay process with a given half life (or call it nuclear "flourescence" lifetime, or whatever). This puts them on the same conceptual stage as RTGs. It should be possible to stimulate the emission of radiation, i.e. build the nuclear isomer equivalent to a chemical laser. That'd would allow to control the release of power and not depend on random decay.