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NPRR764
Summary
| Title | QSE Capacity Short Calculations Based on an 80% Probability of Exceedance (P80) |
|---|---|
| Next Group | |
| Next Step | |
| Status | Approved on 06/14/2016 |
| Effective Dates |
03/09/2017
|
Action
| Date | Gov Body | Action Taken | Next Steps |
|---|---|---|---|
| 06/14/2016 | BOARD | Approved | |
| 05/26/2016 | TAC | Recommended for Approval | Board for consideration |
| 05/12/2016 | PRS | Recommended for Approval | TAC for consideration |
| 04/14/2016 | PRS | Recommended for Approval | PRS for Impact Analysis review |
Voting Record
| Date | Gov Body | Motion | Result |
|---|---|---|---|
| 06/14/2016 | BOARD | To approve NPRR764 as recommended by TAC in the 5/26/16 TAC Report. | Passed |
| 05/26/2016 | TAC | To recommend approval of NPRR764 as recommended by PRS in the 5/12/16 PRS Report | Passed |
| 05/12/2016 | PRS | To endorse and forward to TAC the 4/14/16 PRS Report as revised by PRS and the Impact Analysis for NPRR764 with a recommended priority of 2016 and rank of 1365 | Passed |
| 04/14/2016 | PRS | To recommend approval of NPRR764 as revised by PRS | Passed |
Background
| Status: | Approved |
|---|---|
| Date Posted: | Mar 30, 2016 |
| Sponsor: | ERCOT |
| Urgent: | No |
| Sections: | 5.7.4 and 5.7.4.1.1 |
| Description: | This Nodal Protocol Revision Request (NPRR) proposes to base Reliability Unit Commitment (RUC) capacity short calculations on the Wind-Powered Generation Resource Production Potential (WGRPP) for a Wind-powered Generation Resource (WGR) and the PhotoVoltaic Generation Resource Production Potential (PVGRPP) for a PhotoVoltaic Generation Resource (PVGR)–i.e., an 80% probability of exceedance (P80). Under the current Protocols, RUC capacity short calculations are based on the Short Term Wind Power Forecast (STWPF) and the Short-Term PhotoVoltaic Power Forecast (STPPF)—i.e., a 50% probability of exceedance (P50)—pursuant to language introduced by NPRR210, Wind Forecasting Change to P50, Synchronization with PRR841, and NPRR615, PVGR Forecasting. Although NPRR210 directs ERCOT to utilize the WGRPP (P80) in RUC capacity short calculations, there was a missed impact given that the P80 forecast is currently not available in the Market Management System (MMS) but instead resides in the Energy Management System (EMS). Only the STWPF and STPPF, which are used as inputs into the Day-Ahead RUC (DRUC) and Hourly RUC (HRUC), are available in MMS. |
| Reason: | Market efficiencies/enhancements |
Key Documents
Mar 30, 2016 - doc - 142 KB
Mar 30, 2016 - doc - 57 KB
Apr 19, 2016 - doc - 148.5 KB
May 16, 2016 - doc - 149.5 KB
May 31, 2016 - doc - 152 KB
Jun 15, 2016 - doc - 152.5 KB