Towers of concrete blocks as tall as skyscrapers, a ski lift-like contraption on the side of a mountain, underground caverns — the quest for more ways to back up the increasing amount of wind and solar energy on the grid has recently driven investment toward a number of unusual technologies. Now, the ability to serve a cleaner but more variable grid has become part of the pitch for a technology that has been around for decades but is still seeking commercialization: molten salt nuclear reactors, which have been promoted for years by investors like Bill Gates, who say that a new version of nuclear power is necessary to provide on-demand, carbon-free energy.

Author: Matthew Bandyk

Source: Utility Dive

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