The PJM Interconnection has issued a Hot Weather Alert for its Mid-Atlantic and Southern regions for July 12 and 13 in advance of expected 90-degree temperatures.

A Hot Weather Alert helps to prepare transmission and generation personnel and facilities for extreme heat and/or humidity that may cause capacity problems on the grid. Temperatures are expected to be near or above 90 degrees in these regions, which drives up the demand for electricity.

The Mid-Atlantic region is made up of the Atlantic City Electric, Baltimore Gas and Electric, Delmarva Power & Light, Jersey Central Power & Light, Met-Ed, Penelec, PECO Energy, Pepco, PPL Electric Utilities, PSE&G, and Orange & Rockland (Rockland Electric Company) transmission zones.

The PJM Southern region consists of Dominion Virginia Power’s service territory.

As of July 11, PJM is expecting to serve a forecasted load of approximately 139,000 MW on July 12 and 138,800 MW on July 13.

The forecasted summer peak demand for electricity is approximately 156,000 MW, but PJM has performed reliability studies at even higher loads – in excess of 163,000 MW.

PJM has approximately 186,000 MW of installed generating capacity available to meet customer needs, with sufficient resources available in reserve to cover generation that is unexpectedly unavailable or for other unanticipated changes in demand.

Last year’s peak demand was approximately 149,000 MW.

Click Here for a copy of the Hot Weather Alert.

Previous Alerts:

-- PJM Interconnection Issues Hot Weather Alert For Entire Electrical Grid Footprint for July 5   [PaEN]

-- PJM Interconnection Issued Hot Weather Alert For Entire Footprint For June 2   [PaEN]

Related Articles - PJM:

-- PJM Interconnection Announces New Project Evaluation Process Begins July 10; More Than 260,000 MW Of Mostly Renewable Projects In Queue  [PaEN]

-- PJM Interconnection Study Shows Renewable Energy Sources Not Coming Online Fast Enough To Replace Fossil Fuel Plants; Critical Path Analysis Started To Avoid Grid Reliability Risks  [PaEN]

-- NRDC: PJM Interconnection Delays In Queue To Approve Renewable Energy Projects Threatens State Transition To Clean Energy; PJM Has Approved 35,000 MW Of Renewables Not Yet Connected  [PaEN]

-- Senate Hearing On Electric Grid Reliability: Natural Gas Continues To Have Reliability Problems; Renewables Aren’t Coming Online Fast Enough; Energy Office To Be Proposed  [PaEN]

-- PUC Releases Summer Readiness Reports From Electric Utilities - Adequate Capacity And Supply To Meet Summer Energy Needs  [PaEN]

-- PJM Interconnection: Summer Electricity Supplies Should Be Sufficient Under Anticipated Conditions; Higher Than Expected Generator Outages, Extreme Scenarios Could Bring Risk To Reserve Margins  [PaEN]

-- PJM’s Preliminary Review Of Christmas Storm Electric Generation Failures Shows Natural Gas Units Failed To Provide Power At Over Triple The Rate Of Other Generation  [PaEN]

-- PJM Interconnection ‘Possibility Of Rotating Customer Outages Is Real’ - A Mix Of Power Plants In The System Are ‘Not Performing’ - Filing DOE Emergency Power Request [Request Ended]  [PaEN]

-- PJM This Week Sends Penalty Assessments Of Up To $2 Billion To Electric Generators That Failed To Perform During December’s Winter Storm Elliot; Natural Gas Power Plants Had 63% Of Outages  [PaEN]

-- Senate Hearing: Wholesale Electricity Prices Too Low To Support Coal, Natural Gas Power Plants In Market; Natural Gas Reliability Issues Will Continue  [PaEN]

[Posted: July 11, 2023]

7/17/2023