Well, somebody has to step up and do the R&D to productisize supercritical CO2 technology. Steam has been around for a couple of centuries and is extremely matu

Well, somebody has to step up and do the R&D to productisize supercritical CO2 technology. Steam has been around for a couple of centuries and is extremely mature. One potential cost reduction in none-LWR's is that those LWR reactor vessels are awfully thick and heavy to withstand the pressures involved. Making them is pretty involved, and there's only a few forges around the world capable of making such large objects. Metal or salt-cooled reactors work at roughly atmospheric pressure, which can be easily made by just welding sheet metal together.