Companies pioneer new nuclear designs

Companies pioneer new nuclear designs: http://www.aps.org/publications/apsnews/201202/nucleardesign.cfm "Two relatively new nuclear companies, NuScale Power and TerraPower, are cooking up new reactor designs, and meeting new challenges along the way.
Modern light water reactors generate, on average, 1000 megawatts of energy. Medium reactors can dip down to 700 MW. Ideas for smaller reactors have always been around, but never made it past the drawing board, as they seemed reasonable  only for small, isolated markets. But in the late 2000s, the cost of large nuclear power plants began to grow unwieldy. Even large buyers were forced to make drastic financial bets on new reactors. So around  2009, the market changed its mind about small reactors."