Harmonizing IBR Interconnection Requirements in the West Utilities across the Western Interconnection are rapidly deploying inverter-based resources (IBRs), yet interconnection requirements vary widely across transmission providers. These inconsistencies create uncertainty for developers, increase redesign risk, and can lead to uneven…

WIRAB Technical Resource: Oversight of Inverter-Based Resources (IBRs) in the West Utilities in the Western Interconnection are rapidly adding inverter-based resources (IBRs) such as solar, wind, and battery storage. In 2024, WIRAB commissioned the IBR Risk Assessment Report, which identified…