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NPRR198
Summary
| Title | Load Used in RMR Studies |
|---|---|
| Next Group | |
| Next Step | |
| Status | Approved on 03/23/2010 |
| Effective Dates |
12/01/2010
or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (04/01/10 Nodal Protocols Library) |
Action
| Date | Gov Body | Action Taken | Next Steps |
|---|---|---|---|
| 11/19/2009 | PRS | Deferred/Tabled | PRS language consideration |
| 12/17/2009 | PRS | Recommended for Approval | PRS Impact Analysis review |
| 03/23/2010 | BOARD | Approved | |
| 03/04/2010 | TAC | Recommended for Approval | ERCOT Board consideration of NPRR198 |
| 02/04/2010 | TAC | Deferred/Tabled | TAC consideration of NPRR198 |
| 01/21/2010 | PRS | Recommended for Approval | TAC consideration of NPRR198 |
Voting Record
| Date | Gov Body | Motion | Result |
|---|---|---|---|
| 11/19/2009 | PRS | To table NPRR198. | Passed |
| 12/17/2009 | PRS | To recommend approval of NPRR198 as amended by the 11/13/09 PSEG TX comments. | Passed |
| 03/23/2010 | BOARD | To approve NPRR198 as recommended by TAC in the 3/4/10 TAC Report. | Passed |
| 03/04/2010 | TAC | To recommend approval of NPRR198 as revised by TAC on 2/4/10. | Passed |
| 02/04/2010 | TAC | To revise the 1/21/10 PRS Report and to table NPRR198 for one month. | Passed |
| 01/21/2010 | PRS | To endorse and forward the 12/17/09 PRS Recommendation Report and Impact Analysis for NPRR198 to TAC. | Passed |
Background
| Status: | Approved |
|---|---|
| Date Posted: | Nov 10, 2009 |
| Sponsor: | PSEG TX |
| Urgent: | No |
| Sections: | 3.14.1.2 |
| Description: | This Nodal Protocol Revision Request (NPRR) would provide guidance to ERCOT to use the peak Load forecast posted pursuant to P.U.C. Subst. R. 25.505, Resource Adequacy in the Electric Reliability Council of Texas Power Region, for the next 12 months for the Reliability Must-Run (RMR) study, except with respect to the Load in the RMR local area. This aligns the Load forecast period with the RMR contract period and ensures that the Load forecast used for the analysis is one with a reasonable probability of occurrence. This NPRR also proposes non-substantive administrative changes, shown with the author "ERCOT Market Rules." |
| Reason: | The current process around how RMR studies are conducted is not defined in the Nodal Protocols. Providing guidance for the process ensures that a Load level that ERCOT actually anticipates will be used for the RMR study. Presently, ERCOT typically uses the aggregate non-coincident peak Loads provided by the transmission owners that are used to develop the five-year Steady State Working Group (SSWG) planning cases. Because these Loads are both peak and non-coincident, they tend to overestimate actual Load during any single period. Employing a process that uses a Load forecast that ERCOT actually anticipates to occur in the next 12 months will ensure that RMR is procured only when needed to serve Load that will likely occur. The present process of using a Load forecast that significantly overestimates load could result in procuring RMR when it is not needed. Procuring RMR when it is not needed increases costs to Load and undermines opportunities for competitive generation in ERCOT’s energy-only market. |
Key Documents
Nov 10, 2009 - doc - 87 KB
Nov 10, 2009 - doc - 70.5 KB
Nov 11, 2009 - doc - 44 KB
Nov 13, 2009 - doc - 47.5 KB
Nov 23, 2009 - doc - 100.5 KB
Dec 18, 2009 - doc - 102.5 KB
Jan 4, 2010 - doc - 46.5 KB
Jan 25, 2010 - doc - 104 KB
Feb 5, 2010 - doc - 103 KB
Mar 5, 2010 - doc - 103.5 KB
Mar 23, 2010 - doc - 104.5 KB