Trending Now - US Power Grid Faces Pressure Amidst Rising Temperatures

WHO:

Utility Dive - The PJM Interconnection received an emergency order from the U.S. Department of Energy.

Bloomberg Markets - Operators of the largest US power grid are involved in repairs.

WHAT:

Utility Dive - PJM can curtail data centers and other large loads with backup generation for three days starting May 18 due to hot weather and planned power plant maintenance outages.

Utility Dive - PJM expects to have less than 5,800 MW of reserves during its peak load on May 18.

Bloomberg Markets - The US power grid is experiencing strain due to rising demand and hotter-than-normal weather.

Bloomberg Markets - Equipment repairs are being rushed ahead of the summer season.

WHERE:

Utility Dive - Maryland and Virginia are expected to be especially stressed by the unseasonably hot weather.

Bloomberg Markets - The largest US power grid is the focus of the report, though specific locations are not mentioned.

WHEN:

Utility Dive - PJM expects its peak load to hit 134,027 MW, 135,961 MW, and 119,103 MW over three days starting on Tuesday.

Bloomberg Markets - Hotter-than-normal weather is expected this summer.

WHY:

Utility Dive - The combination of generation outages and forecasted demand raises a significant risk of emergency conditions that could jeopardize electric reliability and public safety.

Bloomberg Markets - The strain on the power grid is attributed to a blast of late-spring heat.

HOW:

Utility Dive - PJM activated demand response customers in parts of the Mid-Atlantic and Dominion regions to address local transmission constraints.

Bloomberg Markets - Operators are racing to repair equipment in anticipation of increased demand.

(UPDATED May 20, 2026 01:38 UTC)

The PJM Interconnection has received an emergency order from the U.S. Department of Energy, allowing it to curtail data centers and other large loads with backup generation for three days due to hot weather and planned power plant maintenance outages. As PJM anticipates its peak load to reach 134,027 megawatts, 135,961 megawatts, and 119,103 megawatts starting on Tuesday, the region, particularly Maryland and Virginia, is facing significant stress from unseasonably high temperatures. This situation, driven by a combination of generation outages and increased demand, raises serious concerns about electric reliability and public safety, prompting PJM to activate demand response customers in parts of the Mid-Atlantic and Dominion regions.

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(UPDATED May 19, 2026 23:25 UTC)

Operators of the largest US power grid are rushing to repair equipment as the grid faces strain from rising demand and hotter-than-normal weather expected this summer. This situation is attributed to a blast of late-spring heat, prompting urgency in the repairs ahead of the peak season. While specific locations are not mentioned, the focus remains on ensuring the reliability of the grid during this challenging period.