2020 may turn out to be the year of the battery. The Trump administration has made grid-level battery backup a focus of its Energy Storage Grand Challenge — an effort to create an all-American supply chain for advanced battery technologies. Meanwhile, Texas, which is the only state to run its own electricity grid, is offering up to $9000 a megawatt-hour for peak summer battery power. And on the other side of the world in South Australia, Tesla has been asked to up the capacity of its mammoth battery in the desert to 193.5 megawatt-hours, or about double the storage capacity of the entire Texas state grid.
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