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US Small-Scale Nuclear Reactor Industry Gains Traction In Missouri

trichard writes with this quote from an AP report: "Ameren Missouri is vying to be the first utility in the country to seek a construction and operating license for a small-scale nuclear reactor, a technology that's appealing to utilities because of the smaller upfront costs and shorter development lead times. The small reactors, about a fourth or less the capacity of full-size nuclear units, are appealing to the nuclear industry because they could be manufactured at a central plant and shipped around the world. By contrast, building nuclear reactors today is a more cumbersome process that must be done largely on site and takes years."

3 of 200 comments (clear)

  1. How does the MTBF scale? by Kenja · · Score: 4, Interesting

    Do lots of smaller reactors fail at a rate statistically below or at least equal to a single larger reactor that generates the same amount of power?

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    "Have you ever thought about just turning off the TV, sitting down with your kids, and hitting them?"
  2. Small Scale Nuclear Power Plants... by bjwest · · Score: 4, Interesting

    have been in use by the U.S. Navy for decades. They've plenty of safety and failure rate data on them, they've got a high safety rating, and they're pretty small. Start mass producing them suckers and they'll be cheap as hell. Start peppering the power grid with them here and there, and soon we'll have clean, virtually unlimited power. Most counties in the country can get by with one, and still have plenty of power to spare which can be sold off to the larger cities that need would more than one.

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    --- Keep the choice with the user..
  3. Not quite true... by DerekLyons · · Score: 4, Interesting

    The small reactors, about a fourth or less the capacity of full-size nuclear units, are appealing to the nuclear industry because they could be manufactured at a central plant and shipped around the world. By contrast, building nuclear reactors today is a more cumbersome process that must be done largely on site and takes years.

    That's an editorial addition by the submitter - and not part of TFA. And it's not quite right either.
     
    Regardless of the size of the plant, the major machinery is built off-site and shipped to the construction site for installation. What's time consuming and expensive on site (and it's not clear that small reactors escape this) is the labor intensive work of hooking up all the piping, wiring, and ancillary systems for the plant.
     
    What saves time and money in this kind of construction is eliminating building major machinery only on demand, and instead building it at a slow but steady and predictable pace. I.E. if you can negotiate to buy April's production in February of the previous year, you have less capital tied up (and thus pay less interest) than if you had to order your machinery two, three, or four years in advance. Though standardized serial production isn't quite the same as mass production, it has the same benefits to a lesser degree.