Infrastructure

LUMA Outage Drops to About 16,000 Customers After AES Plant Unit Trips Offline

Published Jul 9, 2026, 10:06 AM ASTvia El Nuevo Día

At a glance

  • 104,018 LUMA Energy customers were initially without power due to load shedding
  • The number of affected customers decreased to 16,790 by 11:45 AM.
  • Arecibo and Caguas were the most affected regions, with 5,728 and 4,849 customers without power, respectively

Why this matters: Puerto Rico’s power grid has faced challenges in recent years, including outages and infrastructure issues.

Our coverage

Power live: 10,800 customers out island-wide at 3:56 AM

Thousands of LUMA Energy customers lost power Thursday morning due to load-shedding caused by a generation shortfall after the abrupt shutdown of Unit #2 at the AES Puerto Rico plant. LUMA’s outage portal showed 104,018 customers without service at 10:00 AM, but that number dropped sharply to 16,790 by about 11:45 AM. Of those, roughly 6,694 outages were linked to planned system improvements and about 10,096 to unplanned interruptions.

LUMA said on social media that the generation-related load-shedding was stabilizing and service was being progressively restored. At 11:45 AM, the Arecibo region was hardest hit with 5,728 customers without power, followed by Caguas with 4,849 affected. The company said it remained in continuous communication with power generators to support an efficient recovery and ensure the system operates as stably as possible.

In context — 787daily, from public data

SourceEl Nuevo Día

Our coverage

Power live: 10,800 customers out island-wide at 3:56 AM

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