In today’s rapidly evolving energy landscape, the reliability and efficiency of the power grid are more crucial than ever. An increasing penetration of inverter-based resources (IBR) to meet clean energy targets will also mean an IBR-dominated dynamic behavior of power systems. It is extremely important that a usable power system model representation of IBR, conventional machines, loads, and other components is submitted to utilities to support the analysis of the reliability of the transmission system.

In a significant move for the U.S. energy sector, a proposed settlement filed with the Federal Energy Regulatory Commission (FERC) promises to resolve a long-standing dispute over how costs for critical transmission upgrades are shared within PJM Interconnection, one of the nation’s largest regional grid operators. This agreement, detailed in filings from the Indicated PJM Transmission Owners (ITOs), Long Island Power Authority (LIPA), Neptune Regional Transmission System, LLC, and supported by technical analysis from Pterra, addresses fairness in cost allocation while paving the way for a more reliable grid. Here’s a deep dive into what this settlement means and why it matters.

Meet Pterra’s Francis Luces & Yifu Li at Texas A&M University during the IEEE TPEC 2025 event on Feb 10-11, 2025! Pterra will be presenting our technical paper, “dqBOT: An Automation Tool for Benchmarking Dynamic Quality in Generator Interconnections.” We look forward to…