NPRR #239 · Revision Request
NPRR239 Ramp Rate Limitation of 10% per minute of On-Line Installed Capability for Wind-powered Generation Resources
ReasonThe intent of this NPRR is to maintain system reliability as it allows ERCOT to avoid frequency spikes due to WGRs’ ability to ramp up or ramp down almost instantaneously.
Created2010-05-20
Approved2010-07-20
Sections Affected
6.5.7.10
Summary
This Nodal Protocol Revision Request (NPRR) proposes a requirement that certain Wind-powered Generation Resources (WGRs) limit the unit ramp rate to 10% per minute of their nameplate rating as registered with ERCOT. The proposed language is based on the concept set forth in zonal Protocol Section 6.5.13, WGR Ramp Rate Limitations.
Action Log 4 milestones
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Jun 17
PRSRecommended for Approval→ TAC consideration of NPRR239
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Jul 20
BOARDApproved
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May 20
PRSRecommended for Approval→ PRS Impact Analysis review
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Jul 1
TACRecommended for Approval→ ERCOT Board consideration of NPRR239
Documents 9
| Name | Type | Posted | Classification |
|---|---|---|---|
| 239NPRR-01 Ramp Rate Limitation of 10% per minute of On-Line Ins | doc | May 13 '10 | Revision Request |
| 239NPRR-02 CEO Revision Request Review 051310 | doc | May 13 '10 | Revision Request Comments |
| 239NPRR-03 Impact Analysis 051310 | doc | May 13 '10 | Staff Report |
| 239NPRR-04 PRS Report 052010 | doc | May 24 '10 | Committee Report |
| 239NPRR-05 Wind Coalition Comments 061010 | doc | Jun 10 '10 | Revision Request Comments |
| 239NPRR-06 PRS Report 061710 | doc | Jun 22 '10 | Committee Report |
| 239NPRR-07 PRS Voting Ballot 061710 | xls | Jun 21 '10 | Revision Request Ballot |
| 239NPRR-08 TAC Report 070110 | doc | Jul 6 '10 | Committee Report |
| 239NPRR-09 Board Report 072010 | doc | Jul 21 '10 | Committee Report |
Meetings That Took It Up 3
| Date | Meeting | Committee | Status |
|---|---|---|---|
| Jul 1 '10 | TAC Meeting | TAC | Concluded |
| Jun 17 '10 | PRS Meeting | PRS | Concluded |
| May 20 '10 | PRS Meeting | PRS | Concluded |