US government funds pilot project for heated sand energy storage

The US Department of Energy is funding a pilot project to demonstrate the commercial viability of storing energy in heated sand, which is capable of producing 135 MW of power for five days. From pv magazine USA Researchers at the US Department of Energy's National Renewable Energy Laboratory (NREL) have developed a prototype for a multi-day energy storage system using heated sand, setting the stage for a pilot demonstration project. The sand used in the thermal energy storage (TES) system could be heated to the range of 1,100 C using low-cost renewable power. The nearby diagram shows that when ...

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