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OBDRR011
Summary
| Title | ORDC OBD Revisions for PUCT Project 48551 |
|---|---|
| Next Group | |
| Next Step | |
| Status | Approved on 02/12/2019 |
Action
| Date | Gov Body | Action Taken | Next steps |
|---|---|---|---|
| 02/12/2019 | BOARD | Approved | |
| 01/30/2019 | TAC | Recommended for Approval | Board for consideration |
Voting Record
| Date | Gov Body | Motion | Result |
|---|---|---|---|
| 02/12/2019 | BOARD | To approve OBDRR011 as recommended by TAC in the 1/30/19 TAC Report | Passed |
| 01/30/2019 | TAC | To recommend approval of OBDRR011 as revised by TAC | Passed |
Background
| Status: | Approved |
|---|---|
| Date Posted: | Jan 22, 2019 |
| Sponsor: | ERCOT |
| Urgent: | No |
| Sections: | Methodology for Implementing Operating Reserve Demand Curve (ORDC) to Calculate Real-Time Reserve Price Adder |
| Description: | As directed by the Commissioners of the Public Utility Commission of Texas (PUCT) at the PUCT’s January 17, 2019 open meeting, this Other Binding Document Revision Request (OBDRR) modifies the ORDC to achieve a rightward shift in the Loss of Load Probability (LOLP) curve by 0.25 standard deviations in 2019 and another 0.25 standard deviations in 2020. To effectuate this change, this OBDRR revises the methodology for calculating the probability of reserves falling below the minimum contingency level (“PMBCL”) to shift the LOLP by a defined factor “S” multiplied by the standard deviation of the LOLP distribution. This OBDRR proposes to grey-box the change for 2020 until March 1, 2020, consistent with the Commissioners’ directive. With respect to determining the PMBCL and Real-Time Reserve Price Adders, this OBDRR also replaces season and time of day blocks with a blended curve for all seasons and hours, consistent with the Commissioners’ instruction. |
| Reason: | Regulatory requirements |
Key Documents
Jan 22, 2019 - docx - 99.7 KB
Jan 22, 2019 - doc - 54.5 KB
Feb 1, 2019 - docx - 100.7 KB
Feb 13, 2019 - docx - 100.4 KB