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NPRR290
Summary
| Title | ERCOT Publication of DAM PSS/E Files |
|---|---|
| Next Group | |
| Next Step | |
| Status | Approved on 04/19/2011 |
| Effective Dates |
11/26/2011
Section 4.2.3(a)-(b) 12/09/2011
All remaining sections |
Action
| Date | Gov Body | Action Taken | Next Steps |
|---|---|---|---|
| 04/19/2011 | BOARD | Approved | |
| 03/03/2011 | TAC | Recommended for Approval | ERCOT Board for consideration. |
| 02/17/2011 | PRS | Recommended for Approval | TAC for consideration. |
| 01/20/2011 | PRS | Recommended for Approval | PRS for Impact Analysis review. |
| 12/16/2010 | PRS | Deferred/Tabled | PRS for consideration. |
| 11/18/2010 | PRS | Deferred/Tabled | PRS for consideration. |
Voting Record
| Date | Gov Body | Motion | Result |
|---|---|---|---|
| 04/19/2011 | BOARD | To approve NPRR290 as recommended by TAC in the 3/3/11 TAC Report. | Passed |
| 03/03/2011 | TAC | To recommend approval of NPRR290 as recommended by PRS in the 2/17/11 PRS Report as revised by TAC. | Passed |
| 02/17/2011 | PRS | To endorse and forward the 1/20/11 PRS Report as amended by the 2/16/11 ERCOT comments, Impact Analysis and Cost Benefit Analysis for NPRR290 to TAC with a recommended priority of High and a rank of 13. | Passed |
| 01/20/2011 | PRS | To recommend approval of NPRR290 as amended by the Luminant Energy comments and as revised by PRS. | Passed |
| 12/16/2010 | PRS | To table NPRR290 for one month. | Passed |
| 11/18/2010 | PRS | To table NPRR290 for one month; to request that ERCOT implement the manual workaround based on the model load schedule as done in market trials and as resources allow; and to provide estimated costs for the various options of implementation. | Passed |
Background
| Status: | Approved |
|---|---|
| Date Posted: | Oct 27, 2010 |
| Sponsor: | Henry Durrwachter on behalf of Luminant Energy Company LLC |
| Urgent: | No |
| Sections: | 4.2.3 |
| Description: | This Nodal Protocol Revision Request (NPRR) enhances transparency of the transmission topology (including all scheduled Outages) used in the Day-Ahead Market (DAM) by requiring ERCOT to publish certain data files (in Power System Simulator for Engineering (PSS/E format) for easy review by all Market Participants with standard power flow tools such as PTI PSS/E, Power World Simulator, etc. Much of the tools needed by ERCOT to meet the requirements of this NPRR were developed and semi-automated during the Nodal DAM market trials and this NPRR seeks to leverage that work for long term market benefit. |
| Reason: | The original intent of the Market Participants was to have incremental updates published by ERCOT on a daily basis so that they could properly model the ERCOT System and replicate the DAM solution. ERCOT has stated in the Nodal Advisory Task Force (NATF) meetings and through the "Networking Modeling Expectations for TSP, REs, and QSEs" whitepaper that it will not be able to comply with the Protocol requirement to provide daily model updates. Therefore, to provide Market Participants the transparency and ability to review the implied power flows of the DAM solution, this NPRR adds a requirement for ERCOT to post daily on the Market Information System (MIS) Public Area a package of transmission data files in PSS/E format that describe each hour’s associated transmission system topology (including contingencies) and mapping of generators, Loads, transmission lines, transformers, and Hubs. |
Key Documents
Oct 28, 2010 - doc - 97.5 KB
Oct 28, 2010 - doc - 69.5 KB
Nov 10, 2010 - doc - 43.5 KB
Nov 12, 2010 - doc - 37.5 KB
Nov 16, 2010 - doc - 104 KB
Nov 23, 2010 - doc - 105 KB
Dec 20, 2010 - doc - 107 KB
Jan 14, 2011 - doc - 45 KB
Jan 19, 2011 - doc - 50 KB
Jan 24, 2011 - doc - 109.5 KB
Feb 16, 2011 - doc - 85 KB
Feb 24, 2011 - doc - 58.5 KB
Feb 16, 2011 - xls - 106.5 KB
Feb 21, 2011 - doc - 123 KB
Mar 3, 2011 - doc - 126.5 KB
Apr 8, 2011 - xls - 104 KB
Apr 21, 2011 - doc - 128 KB