
A fault in a transmission line in Ashburn, Virginia, caused a sudden loss of over 3 gigawatts of power, affecting the world’s largest data center cluster. A similar incident two years earlier, triggered by a failed surge arrester, dropped 1,500 megawatts across 60 facilities.
On July 22, 2026, a transmission line fault in Ashburn, Virginia—the heart of the world’s largest data center cluster—knocked more than 3 gigawatts of load off the grid in seconds. And it wasn’t the first time. Two years earlier, a single failed surge arrester dropped roughly 60 Virginia facilities and 1,500 megawatts at once. No…
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