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NPRR385
Summary
| Title | Negative Price Floor (formerly "Security Violation Analysis and Reporting and Negative Price Floor") |
|---|---|
| Next Group | |
| Next Step | |
| Status | Approved on 12/11/2012 |
| Effective Dates |
09/25/2013
|
Action
| Date | Gov Body | Action Taken | Next steps |
|---|---|---|---|
| 12/11/2012 | BOARD | Approved | |
| 11/29/2012 | TAC | Recommended for Approval | ERCOT Board consideration of NPRR385 |
| 11/15/2012 | PRS | Recommended for Approval | TAC consideration of NPRR385 |
| 10/18/2012 | PRS | Recommended for Approval | PRS Impact Analysis review |
| 09/22/2011 | PRS | Deferred/Tabled | PRS Impact Analysis review |
| 08/18/2011 | PRS | Deferred/Tabled | PRS Impact Analysis review |
| 07/21/2011 | PRS | Recommended for Approval | PRS Impact Analysis review |
Voting Record
| Date | Gov Body | Motion | Result |
|---|---|---|---|
| 12/11/2012 | BOARD | To approve NPRR385 as recommended by TAC in the 11/29/12 TAC Report. | Passed |
| 11/29/2012 | TAC | To recommend approval of NPRR385 as recommended by PRS in the 11/15/12 PRS Report. | Passed |
| 11/15/2012 | PRS | To endorse and forward the 10/18/12 PRS Report as amended by the 11/14/12 ERCOT comments and Impact Analysis for NPRR385 to TAC with a recommended priority of 2013 and rank of 367. | Passed |
| 10/18/2012 | PRS | To endorse the 7/21/11 PRS Report for NPRR385 as amended by the 10/16/12 Luminant Energy Company LLC comments and to request that NPRR385 return to the November 15, 2012 PRS meeting with an Impact Analysis. | Passed |
| 09/22/2011 | PRS | To table NPRR385. | Passed |
| 08/18/2011 | PRS | To table NPRR385 for one month. | Passed |
| 07/21/2011 | PRS | To recommend approval of NPRR385 as amended by the 6/21/11 Luminant Energy Company LLC comments. | Passed |
Background
| Status: | Approved |
|---|---|
| Date Posted: | Jun 14, 2011 |
| Sponsor: | Luminant Energy Company LLC |
| Urgent: | No |
| Sections: | 4.6.1.1, 6.1.1, 6.6.1.1, 6.6.3.1 |
| Description: | This Nodal Protocol Revision Request (NPRR) adds an administrative Settlement Point Price floor of negative $251/MWh. |
| Reason: | As part of the holistic approach towards congestion irresolvable by Security-Constrained Economic Dispatch (SCED), the Congestion Irresolvable by SCED Task Force discussed the impact of Generation Resources on the other side of the constraints, in which ERCOT needs to back down. Those Generation Resources seem to be inequitably harmed as Real-Time Settlement Point Prices can drop to extremely negative values, which are unnecessary to send the proper price signal. This NPRR proposes an administrative price floor for Real-Time Settlement Point Prices of negative $251/MWh, consistent with the Energy Offer Curve offer floor described in Section 4.4.9.3.1, Energy Offer Curve Criteria, and the SCED over-generation power balance penalty curve of negative $251/MWh as established in the ERCOT Business Practice document "Setting the Shadow Price Caps and Power Balance Penalties in Security Constrained Economic Dispatch." The same negative $251/MWh price floor would also be applied to Day-Ahead Settlement Point Prices (DASPPs). |
Key Documents
Jun 14, 2011 - doc - 501 KB
Jun 17, 2011 - doc - 530.5 KB
Jun 21, 2011 - doc - 533 KB
Jul 18, 2011 - doc - 531 KB
Jul 27, 2011 - doc - 569.5 KB
Aug 11, 2011 - doc - 51.5 KB
Aug 22, 2011 - doc - 571.5 KB
Sep 15, 2011 - doc - 58 KB
Sep 20, 2011 - doc - 66 KB
Sep 26, 2011 - doc - 613 KB
Sep 27, 2011 - doc - 38 KB
Oct 12, 2011 - doc - 592 KB
Oct 17, 2011 - doc - 37.5 KB
Oct 17, 2011 - doc - 60 KB
Nov 9, 2011 - doc - 38 KB
Nov 15, 2011 - doc - 60 KB
Dec 9, 2011 - doc - 38.5 KB
Feb 17, 2012 - doc - 39 KB
Mar 12, 2012 - doc - 39 KB
Jul 12, 2012 - doc - 40 KB
Oct 16, 2012 - doc - 566.5 KB
Oct 22, 2012 - doc - 609.5 KB
Oct 22, 2012 - xls - 129.5 KB
Oct 19, 2012 - xls - 129.5 KB
Nov 13, 2012 - doc - 548 KB
Nov 14, 2012 - doc - 561.5 KB
Nov 14, 2012 - doc - 65.5 KB
Nov 15, 2012 - doc - 73.5 KB
Nov 19, 2012 - doc - 616.5 KB
Nov 20, 2012 - doc - 66 KB
Nov 30, 2012 - doc - 610.5 KB
Nov 30, 2012 - xls - 131.5 KB
Dec 12, 2012 - doc - 612.5 KB