NPRR #423 · Revision Request
NPRR423 Add Voltage Support Requirement for IRRs and Allow SCADA Control of Static VAr Devices if Approved by ERCOT (formerly "Add Voltage Support Requirement for IRRs and Allow Manual Control of Static VAr Devices if Approved by ERCOT")
ReasonSimilar to WGRs, solar power plants cannot have or have very limited reactive capability at output less than 10%. This NPRR will clarify the Reactive Power requirement for solar power plants. Paragraph (8) of Section 3.15 allows Generation Entities to submit ERCOT-specific proposals to meet the Reactive Power requirements. Depending on the location and size of those proposed static VAr devices, the Transmission Service Provider (TSP) may suggest that those devices are in the manual control mode to avoid undesired ERCOT System impacts, such as voltage swing during the switching of those VAr devices. This NPRR provides a solution for those proposed VAr devices operating in the manual control mode based on the agreement between the Generation Resource and TSP
Created2011-11-17
Approved2012-02-21
Sections Affected
3.15
Summary
This Nodal Protocol Revision Request (NPRR) includes Intermittent Renewable Resources (IRRs) in the voltage requirement and clarifies the reactive requirement to be the same as Wind-powered Generation Resources (WGRs). This NPRR also proposes that switchable static Volt-Ampere reactive (VAr) devices can be Supervisory Control and Data Acquisition (SCADA) controlled if approved by ERCOT.
Action Log 4 milestones
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Nov 17
PRSRecommended for Approval→ PRS review the Impact Analysis
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Dec 15
PRSRecommended for Approval→ TAC consideration
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Jan 5
TACRecommended for Approval→ Board consideration
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Feb 21
BOARDApproved
Amendments
| Date | Body | Motion | Result |
|---|---|---|---|
| Nov 17 '11 | PRS | To recommend approval of NPRR423 as amended by the 11/14/11 Oncor Electric Delivery comments and as revised by PRS | Passed |
Documents 7
| Name | Type | Posted | Classification |
|---|---|---|---|
| 423NPRR-01 Add Voltage Support Requirement for IRRs and Allow Ma | doc | Nov 2 '11 | Revision Request |
| 423NPRR-02 Impact Analysis 110211 | doc | Dec 19 '11 | Staff Report |
| 423NPRR-03 Oncor Electric Delivery Comments 111411 | doc | Nov 14 '11 | Revision Request Comments |
| 423NPRR-04 PRS Report 111711 | doc | Nov 22 '11 | Committee Report |
| 423NPRR-05 PRS Report 121511 | doc | Dec 19 '11 | Committee Report |
| 423NPRR-06 TAC Report 010512 | doc | Jan 5 '12 | Committee Report |
| 423NPRR-07 Board Report 022112 | doc | Feb 21 '12 | Committee Report |
Meetings That Took It Up 4
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Feb 21 '12 | Board of Directors Meeting | BOARD | Concluded |
| Jan 5 '12 | Technical Advisory Committee (TAC) Meeting | TAC | Concluded |
| Dec 15 '11 | PRS Meeting | PRS | Concluded |
| Nov 17 '11 | PRS Meeting | PRS | Concluded |