Small nuclear reactors: tiny NuScale reactor gets safety approval (popularmechanics.com)

Article summary

NuScale's small modular nuclear reactor design has received a final safety evaluation report, making it the first American modular design to reach this point. The reactor uses classic nuclear fission water reactor technology in a smaller form factor with a new safety system. The design is considered passively safe, as it can quench itself in a pool of water in the event of a runaway reactor event. The company plans to apply for a 60-megawatt version next.

Main themes

• nuclear safety
• modular reactor design
• energy costs
• regulatory frameworks
• historical nuclear accidents
• carbon taxes and climate change

What commenters say

• Some commenters question the term 'officially safe' given past nuclear accidents, highlighting that even supposedly safe reactors can fail.
• Others argue that new designs like NuScale's have improved safety features, such as passive cooling, that reduce the risk of accidents.
• The discussion also touches on the importance of responsible government control, safe locations, and solid maintenance budgets for nuclear power.
• There are differing opinions on the portrayal of historical nuclear accidents, such as Chernobyl, with some arguing that the mini-series was inaccurate or exaggerated.
• The cost of energy production from NuScale's reactors is estimated to be around $0.24 per kWh, which is higher than some expected, but potentially competitive with natural gas if costs decrease with mass production.
• Some commenters note that the lack of intermediate-scale reactors in the US makes it difficult for startups to test and refine their designs.
• The role of carbon taxes in making nuclear energy more competitive with fossil fuels is also discussed, with some arguing that a median carbon-tax proposal could increase natural gas costs by around 25%.