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Experts Warn Nationwide Blackout Could Last 18 Months

Wellinghoff said nine key substation hits could black out the grid, and transformer replacement delays could extend recovery to 18 months.

  • Former Federal Energy Regulatory Commission Chairman Jon Wellinghoff warned the United States could face a nationwide blackout lasting 18 months if nine critical substations across the three major power grids were disabled.
  • Wellinghoff uncovered this vulnerability following the 2013 attack on a Pacific Gas and Electric substation near San Jose, California, where aging equipment now complicates defense efforts across the grid.
  • Large power transformers face average wait times of 128 weeks for replacement, while domestic manufacturers supply only about 20 percent of the units the United States needs and many transformers already exceed service lives.
  • A prolonged outage would collapse communications and financial transactions within days; the supply of food, water and fuel would degrade once natural-gas pumps failed, though Primary Entry Point radio stations hold about 60 days of generator fuel.
  • NERC chief engineer Mark Lauby argues grid complexity and redundancies make a cascading blackout unlikely, yet officials remain concerned about adversaries studying the San Jose attack who have demonstrated interest in targeting critical infrastructure.
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Internewscast broke the news on Wednesday, August 19, 2026.
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