Project 2018-04 Modifications to PRC-024-2

Related Files

The comment period, initial ballot, and non-binding poll for PRC-024-3 – Generator Frequency and Voltage Protection Settings concluded 8 p.m. Eastern, Friday, May 31, 2019. The voting results can be accessed via the links below. The drafting team will consider all responses received during the comment period and determine the next steps of the project.

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.

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

The standard drafting team developed the proposed modifications in PRC-024-3 to address the issues in the SAR.

Standard(s) Affected PRC-024-2

DraftActionsDatesResultsConsideration of Comments



​Draft 1


Clean | Redline to Last Approved

Implementation Plan

Supporting Materials

Unofficial Comment Form (Word)

VRF/VSL Justification

Summary of Key Changes






Draft Reliability Standard Audit Worksheet (RSAW)


Initial Ballot and Non-binding Poll

Updated Info




05/22/19 - 05/31/19


Ballot Results

Non-binding Poll Results

Comment Period


Submit Comments




04/17/19 - 05/31/19

Comments Received


Join Ballot Pools

04/17/19 - 05/16/19



Send RSAW feedback to:

​Standard Authorization Request (SAR)



​The Standards Committee Accepted the SAR on February 20, 2019

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

Response to Comments