The latest hurricane season, which left millions without power for substantial periods of time, was yet another reminder of the urgent need to make America’s electrical grid more resilient. The increasing frequency and intensity of such storms is exposing the vulnerabilities of the aging electrical grid, i.e., the network of transmission and distribution lines often spanning long distances between power generation sources and population centers. These lines can be taken out of service by falling trees, flying debris, or extreme heat or cold, while their substations can be destroyed by flooding, leaving tens of thousands of customers without power at a time.
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