Regional Transmission Expansion Plan (RTEP)
PJM’s Regional Transmission Expansion Plan identifies transmission system additions and improvements needed to keep electricity flowing to the millions of people throughout PJM’s region. PJM’s annual RTEP Report describes transmission study input data, processes and results, as well as PJM Board-approved transmission upgrades and process changes during the previous year. Periodically, PJM publishes white papers that present study input parameters and address transmission planning topics of current stakeholder interest.
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The 2025 Regional Transmission Expansion Plan (RTEP) Report PDF includes a summary of reliability, market efficiency and operational performance studies. The report also examines trends that continued throughout 2025 as the grid continues to experience accelerated generator retirements, driven by unit age and environmental public policies, and significant load growth, driven primarily by the proliferation of data centers.
The report describes the annual RTEP process, including the NERC and regional planning criteria that drive the analysis and the resulting studies and proposal windows. Specific results from studies conducted throughout 2025 are summarized, including baseline reliability, market efficiency, operational performance, transmission owner criteria analyses and interregional studies.
In addition to the presentation of PJM-wide results, PJM presents state-by-state summaries of planning activities that occurred in 2025.
Key Graphics & Information PPT
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