Small modular nuclear reactors: a history of failure

Jim Green Climate and Capital media, January 17th 2024

Global hype around small reactor designs to replace fossil fuels is on the rise everywhere but few, if any, are likely to ever be built.

Small modular reactors (SMRs) have been the subject of endless hype in recent years but in fact, no SMRs have ever been built, none are being built now and in all likelihood none will ever be built because of the prohibitive costs.

SMRs are defined as reactors with a capacity of 300 megawatts (MW) or less with serial factory production of reactor components (or ‘modules’). No SMRs have been built, but dozens of small (<300 MW) power reactors have been built in numerous countries, without factory production of reactor components.


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