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Grid infrastructureUnited StatesEIR-1344

Thunderstorms damage equipment at three substations, leaving customers without power

Aug 2026Published 28 Sept 2026Responsible editor: Chief Editor

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On Friday 7 August 2026, a heavy band of strong thunderstorms around 3 pm damaged equipment at three substations and affected two transmission lines, according to AES. Power was mostly restored by Sunday morning. As of 8:20 am on 9 August, the AES outage map showed 28 customers still without supply in Montgomery County and one in Greene County. Repair crews were working. The precise sites and the extent of damage were not reported.

AES said strong thunderstorms damaged substation equipment and affected two transmission lines. No further cause was reported.

  1. Severe weather can damage several substations and transmission lines at once, so restoration plans should cover more than one site.
  2. Outage maps should be checked after the main supply returns so remaining customers are not missed.
  3. Public updates should separate confirmed equipment damage from remaining customer counts.

More lessons on weather and external hazards, outages, backup supply and restoration, emergency response and public communication, from every incident on the register.

Published 2026-09-28. Written from public reporting. Descriptive, not investigative. See the data accuracy disclaimer.

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