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 performance expectations across the Bulk Power System. In 2024, WIRAB engaged Elevate Energy Consulting to…

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 reliability risks across the IBR lifecycle—from interconnection and modeling to commissioning, operation, and post-event performance. …