Definition: small modular reactor

A nuclear-powered electricity generation system that can be up to one tenth the size of the traditional nuclear reactor. A unique feature is that small modular reactors (SMRs) can be built in a factory and transported to their destination. Although SMRs are not expected to be as efficient as large power plants, pundits predict that they are the salvation to the massive demand made by AI and cryptocurrencies.

Fission, Not Fusion
Small modular reactors use the traditional "fission" method of energy creation and not "fusion," the latter the hope of many for our energy future and salvation of mankind.

Microreactors: Smaller Yet
Even smaller than SMRs, microreactors are up to a thousand times smaller than the traditional nuclear power plant. Microreactors are expected to generate about 50 megawatts of electricity, whereas SMRs can produce up to 300 megawatts.

Whether modular reactor or microreactor, the small reactor industry is expected to grow significantly over the next five to 10 years. See nuclear reactor, nuclear fusion and AI datacenter.

                     Single Reactor
    Type of Plant   (approximate MWe)

    Traditional**     300 - 1600

    SMR                50 - 300

    Microreactor       20 - 50

  MWe = MegaWatts electric
   ** = can have multiple reactors

A Westinghouse Microreactor

This eVinci microreactor is fully assembled at the factory and easily transported. Lasting for eight years, heat pipes eliminate the need for reactor coolant. It can also be combined with other electrical sources such as wind and solar. (Image courtesy of Westinghouse Electric Company LLC.)