Australian news, and some related international items

All nuclear reactors are very expensive, but small nuclear reactors are even more expensive

Australian Submarines May Go Nuclear But Our Power Stations Never Will,   SOLARQUOTES, October 11, 2021 by Ronald Brakels

  • ”…………………….Small Modular Reactors Are More Expensive An SMR is a Small Modular Reactor.  There have been claims these will provide cheap energy in the future, but this seems unlikely given their designers have stated that…
    • Before cost overruns are considered, SMRs will produce electricity at a higher cost than current nuclear reactor designs.Being more expensive than conventional nuclear power is a major obstacle for any plan to supply energy at a lower cost. 
  • The advantage of SMRs is they are supposed to be less likely to suffer from disastrous cost overruns.  This means they are a more expensive version of a type of generation that is already too expensive for Australia before cost overruns. While any cost overruns that do occur may not be as bad as conventional nuclear, that’s not what I call a good deal.  

  • There is nothing new about small nuclear reactors.  India has over a dozen reactors of 220 megawatts or less in operation.  But all Indian reactors now under construction are larger because they want to reduce costs.  Technically their small reactors aren’t modular because major components weren’t constructed at one site and then moved to where they were used.  This leads to another major problem with SMRs…
    • They don’t exist. Before Australia can deploy an SMR, a suitable prototype reactor will have to be successfully built and operated. Then a commercial version will need to be developed and multiple units constructed overseas without serious cost overruns and used long enough to show they can be operated safely and cheaply. Given nuclear’s prolonged development cycle, this could easily take over 20 years.  The very best estimate for the cost of electricity from an SMR I have seen is around 6.2 cents per kilowatt-hour and it relies on everything going perfectly — a rare thing for nuclear power.  It also leaves out several costs that have to be paid in the real world.  :……….

October 14, 2021 - Posted by | AUSTRALIA - NATIONAL, business

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