Kate Galbraith

Bullish on Batteries

The impoverished border town of Presidio is home to the largest battery system in the country: a $25 million contraption that's the size of a big house. That's not as weird as it seems. Partly because of an affinity for wind energy, the state has a number of experiments going in "energy storage" — often referred to as the "holy grail" of energy technology, because it can modernize the grid by more efficiently matching people's demand for power with the generation of electricity.

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