Project 2021-02 Modifications to VAR-002

​​​​​​​​​​​​​Related Files​​​​

Status
The standard drafting team provided their consideration of industry comments (see below) and are determining the next steps of the project. 


Background
The Inverter-Based Resource Performance Task Force (IRPTF) developed a Standard Authorization Request (SAR) to revise VAR-002 to address issues regarding whether the Generator Operator of a dispersed power resource must notify its associated Transmission Operator upon a status change of a voltage controlling device on an individual generating unit; for example, if a single inverter goes offline in a solar photo-voltaic Facility.  NERC Project 2014-01 Standards Applicability for Dispersed Generation Resources revised VAR-002, Requirement R4, to clarify that it is not applicable to individual generating units of dispersed power producing resources. At the time, the IRPTF did not identify any reason why Requirement R3 (i.e., “status change”) should be treated differently than Requirement R4.

The NERC IRPTF undertook an effort to perform a comprehensive review of all NERC Reliability Standards to determine if there were any potential gaps or improvements. The IRPTF identified several issues as part of this effort and documented its findings and recommendations in a white paper1​ approved by the Operating Committee. Among the findings noted in the white paper, the IRPTF identified issues with VAR-002-4.1 that should be addressed through the standards development process.

The SAR Drafting Team (DT) has revised the SAR based on comments received by industry. The project will continue to collaborate with the Project 2021-06 Modifications to IRO-010 and TOP-003 SDT on data specification aspects. The SAR includes addressing ambiguities as identified by the NERC IRPTF White Paper (March 2020). The SAR DT recommends that the SDT conduct a complete review of Requirements R1-R6 to fully review IBR considerations, as well as VAR-002-4 – Generator Operation for Maintaining Network Voltage Schedules, Attachment 5 recommendations resulting from Project 2016-EPR-02 Enhanced Periodic Review of Voltage and Reactive Standards.


1 IRPTF Review of NERC Reliability Standards White Paper, March 2020, approved by the Operating Committee and the Planning Committee in March 2020, https://www.nerc.com/comm/PC/InverterBased%20Resource%20Performance%20Task%20Force%20IRPT/Review_of_NERC_Reliability_Standards_White_Paper.pdf


Standard(s) Affected
– VAR-002-4.1​


Purpose/Industry Need

​​To clarify VAR-002-4.1, Requirement R3, in regards to whether the GOP of a dispersed power resource must notify its associated TOP upon a status change of a voltage controlling device on an individual generating unit; for example, if a single inverter goes offline in a solar photo-voltaic (PV) Facility​.​​ 

Project 2016-EPR-02 Enhanced Periodic Review of Voltage and Reactive Standards” recommendations (Attachment 5) should be considered within the “Project 2021-02 Modifications to VAR-002-4.1 SAR. Recommendations provide a review of VAR-002 Requirements R1-R6 for consideration of IBR Voltage/VAR control and operation.

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Draft

Actions

Dates

Results
​Consideration of Comments

​Standard Authorization Request​


The Standards Committee accepted the SAR on June 15, 2022​
​Supplemental Drafting Team Nominations

Supporting Materials

Unofficial Nomination Form (Word)
Nomination Period

Info

Submit Nominations​

06/16/22 - 07/15/22

Standard Authorization Request​
Clean​ | Redline to Last Posted

Supporting Materials​

Unofficial Comment Form ​ (Word)

2016-EPR-02 Recommendation Document


​Comment Period


Info

Submit Comments



03/07/22 - 04/06/22



Comm​​ents Received​​​​



Consideration of Comments​​​​​

​​Supplemental Drafting Team Nominations


Supporting Materials

Unofficial Nomination Form (Word)​


Nomination Period

Info

Submit Nominations​



06/10/21 - 06/21/21


Drafting Team Nominations


Supporting Materials

Unofficial Nomination Form (Word)​ ​​


Nomination Period

Info

Submit Nominations




04/14/21 - 05/13/21​


Standard Authorization Request​

Supporting Materials​

Unofficial Comment Form ​

IRPTF Review of NERC Reliability Standards
White Paper



​Comment Period

Info

Submit Comments




​04/14/21 - 05/13/21​








Consideration of Comments
 

​