Grid Ride-Through Compliance for Inverter-Based Resources

As inverter-based resources become an increasingly significant part of the North American power system, grid operators are placing greater emphasis on ensuring these assets remain connected and support system stability during disturbances. The introduction of NERC PRC-029-1, effective October 1, 2026 for Bulk Electric System inverter-based resources, represents a significant shift in ride-through compliance by aligning requirements with IEEE 2800-2022 and establishing new expectations for plant performance, protection settings, and compliance documentation.

This webinar examines the technical and regulatory requirements for grid ride-through compliance under NERC PRC-029-1. Participants will explore voltage and frequency ride-through obligations, no-trip zones, current injection and dynamic voltage support requirements, the prohibition on momentary cessation, and the practical implications for solar, wind, and battery energy storage facilities. The session also considers plant design, protection coordination, modeling, commissioning, documentation, and audit preparation, providing engineers and asset owners with a practical framework for achieving and demonstrating compliance.

Key Topics Discussed:

• Overview of NERC PRC-029-1 and implementation timelines

• Applicability to Bulk Electric System and Non-BES inverter-based resources

• Relationship between PRC-029-1 and IEEE 2800-2022

• Voltage and frequency ride-through requirements

• No-trip zones and disturbance response expectations

• Prohibition on momentary cessation

• Current injection and dynamic voltage support obligations

• Protection settings and coordination considerations

• Inverter controls and plant performance requirements

• Modeling and validation of inverter-based resources

• Commissioning and performance verification

• Documentation and evidence required for compliance

• R4 exemptions and supporting documentation

• Audit preparation and regulatory expectations

• Practical compliance strategies for solar, wind, and battery energy storage facilities