Westinghouse Electric Company, best known as the world-leading nuclear power plant developer, has received $50 million from the US Department of Energy (DoE) for a 1.2 GWh Pumped Thermal Energy Storage (PTES) system, also referred to as a long-duration thermal energy storage system (LDES), to be built in Alaska after finalization – with a total potential investment of $330 million. This is one of fifteen long-duration energy storage pilot projects which were awarded a total of $325 million last Friday, with at least that much to eventually be supplied by the private sector. The other pilots ranging from reused EV batteries, to potentially utility-scale application of zinc manganese dioxide (ZnMnO2), vanadium-flow and other long-duration battery chemistries, and a thermal system which…