A render of MIT's new grid-scale energy storage system


Lithium-ion batteries are the ones consumers are most familiar with, so it seems like the obvious choice to scale them up for grid-scale energy storage – as Tesla did with the world's biggest battery in Australia. But since lithium is relatively hard to come by, it may not be the best choice. Researchers at MIT have outlined a new design they call a "sun in a box," which stores energy as heat in molten silicon and harvests it by tapping into the bright light it emits.

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Continue Reading MIT's conceptual "sun-in-a-box" energy storage system plugs into molten silicon



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