A New Generation of Nuclear Reactors Could Hold the Key to a Green Future
NOVEMBER 16, 2021
On a conference-room whiteboard in the heart of Silicon Valley, Jacob DeWitte sketches his startup’s first product. In red marker, it looks like a beer can in a Koozie, stuck with a crazy straw. In real life, it will be about the size of a hot tub, and made from an array of exotic materials, like zirconium and uranium. Under carefully controlled conditions, they will interact to produce heat, which in turn will make electricity—1.5 megawatts’ worth, enough to power a neighborhood or a factory. DeWitte’s little power plant will run for a decade without refueling and, amazingly, will emit no carbon. ”It’s a metallic thermal battery,” he says, coyly. But more often DeWitte calls it by another name: a nuclear reactor.