Project 2018-04 Modifications to PRC-024-2

Related Files

A formal comment period for the Project 2018-04 Modifications to PRC-024-2 Standard Authorization Request (SAR) is open through 8 p.m. Eastern, Friday, January 18, 2019. Additionally, nominations are being sought for SAR drafting team members through 8 p.m. Eastern, Friday, January 18, 2019.

On November 27, 2018, the NERC Operating Committee (OC) and Planning Committee (PC) submitted a Standard Authorization Request (SAR) prepared by the Inverter-Based Resource Performance Task Force (IRPTF), which reports to the OC and PC.

In 2017, the OC and PC convened the IRPTF shortly after it became clear that inverter-based generation was dropping off-line during normally cleared Bulk Power System (BPS) line faults. The NERC IRPTF supported NERC and WECC staff in the analysis of the Blue Cut Fire and Canyon 2 Fire disturbances in southern California. From the key findings and recommendations in the reports on the analysis, the IRPTF as a stakeholder group of industry experts developed recommended performance characteristics from inverter-based resources connected to the BPS.

Based off the disturbance analyses and development of the PRC-024-2 Gaps Whitepaper, the IRPTF identified potential modifications to PRC-024-2 to help ensure that inverter-based generator owners, operators, developers, and equipment manufacturers understand the intent of the standard in order for their plants respond to grid disturbances in a manner that contributes to the reliable operation of the BPS.

This SAR proposes to revise PRC-024-2 to address the identified issues within the standard.

Standard(s) Affected PRC-024-2

DraftActionsDatesResultsConsideration of Comments

Drafting Team Nominations

Supporting Materials

Unofficial Nomination Form (Word) Updated

Nomination Period


Submit Nominations

12/19/18 - 01/18/19

Standard Authorization Request

Supporting Materials

Unofficial Comment Form (Word) Updated

PRC-024-2 Gaps Whitepaper

Comment Period


Submit Comments


12/19/18 – 01/18/19

Comments Received