Imagine if we had a plutonium economy, where nuclear reactors breeding 239-Pu from 238-U and burning it were the standard in large-scale grid power production. Could this readily available reactor grade plutonium be used in compact reactors for ships, et cetera? Can small reactors of perhaps 10-100MWe be built utilizing plutonium? I'm finding references to MOX fuel being used in today's PWR/BWR reactors and to higher-enriched uranium (8-100%) being used to power small nuclear reactors, but I haven't found any reference to "high Pu" MOX-burning small reactors, or how small breeding reactors can theoretically be. I'd be thankful for any help! EDIT: I'm evidently not good at googling: http://www.iaea.org/inis/collection/NCLCollectionStore/_Public/35/062/35062698.pdf a Japanese paper on a 300MWt PWR, http://www.diva-portal.org/smash/get/diva2:727866/FULLTEXT01.pdf European effort (research reactor ELECTRA). Apologies to all for this, I've got some reading to do.