6
Dec
2018

MIT’s conceptual “sun-in-a-box” energy storage system plugs into molten silicon

The TEGS-MPV system would be built with two heavily-insulated tanks, each made of graphite and measuring 33 ft (10 m) wide. One tank stores the liquid silicon at a relatively “cool” temperature of 3,450° F (1,900° C). To heat it up, the silicon is pumped out of that tank through tubes exposed to heating elements that are powered by external energy sources. The warmer silicon then passes into the second tank, which stores it at a much hotter temperature of about 4,350° F (2,400° C).

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