Flow Impact Due to Convergence Bidding for CRR Adjustment Report - Reports hourly MW flow contributions for transmission constraints impacted by SCs submitting Virtual Bids on behalf of a Convergence Bidding Entity that is also a CRR Holder. This report provides support information for CRR revenue adjustments applied the CRR Settlement Rule. Number 5 Short-Term Unit Commitment This section is based on CAISO Tariff Section 34.6, Short-Term Unit Commitment. At the top of each Trading Hour, immediately after the FMM and the RTUC for the same interval is completed, CAISO performs an approximately five-hour STUC run using SCUC and the CAISO Forecast of CAISO Demand to commit Medium Start Units and Short-Start Units with Start-Up Times greater than the Time Horizon covered by the FMM. The Time Horizon (see Exhibit 7-1) for the STUC optimization run extends three hours beyond the Trading Hour for which the FMM optimization was run, and replicates the Bids used in that Trading Hour for these additional hours. CAISO replicates Bids each time the hourly STUC is run by utilizing: (1) bids previously submitted in RTM by Scheduling Coordinator for that Trading Hour; or (2) the clean bid from the DAM if the resource has a Day-Ahead schedule or received a start-up instruction in RUC for the trading hour, or if the resource has a Real-Time must offer obligation for that trading hour. A Start-Up Instruction produced by STUC is considered binding if the resource could not achieve the target Start-Up Time (as determined in the current STUC run) in a subsequent RTUC run as a result of the Start-Up Time of the resource. A Start-Up Instruction produced by STUC is considered advisory if it is not binding, i.e., when the resource can achieve its target Start-Up Time (as determined in the current STUC run) in a subsequent RTUC run based on its Start-Up Time. A Start-Up Instruction produced by STUC
Conditionally qualified Real Time Spin self-provision (RTUC only) -400 0 Scheduling run penalty price is below the one for regulating-up. AS bid floor is pricing parameter for any type of AS Conditionally qualified Real Time Non-Spin (RTUC only) -395 0 Scheduling run penalty price is below the one for spin. AS bid floor is pricing parameter for any type of AS Conditionally unqualified Reg Up or Down Real Time self-provision (RTUC only) -195 0 In scheduling run, AS self-provision not qualified in pre-processing can still be considered as an AS bid with higher priority in the Energy/AS co-optimization along with regular AS bids. AS bid floor is pricing parameter for any type of AS self-provision. Conditionally unqualified Spin Real Time (RTUC only) -170 0 Same as above. Conditionally unqualified Non-Spin Real Time (RTUC only) -155 0 Same as above. System power balance constraint 1100, -155 1000, -155 To reflect the role regulation in balancing the system when economic bids are exhausted, the ISO allows the system power balance constraint to relax by as much as +/-350MW in the dispatch process. The prices are selected to allow for coordinated dispatch of bids that may exist at or near the bid cap, or at or near the bid floor. Balance constraint for individual PACE and PACW areas. 1100, -750 1000, -150 Subject to the FERC order granting waiver of tariff sections 27.4.3.2.and 27.4.3.4, and consistent with Section 10.1.6 of the BPM for Energy Imbalance Market, which implement the price discovery mechanism overriding the pricing parameters and yielding the last economic signal under constraint relaxation. The scheduling run parameter is set to for the individual EIM areas to coordinate the relaxation of the EIM power balance constraint during conditions relative to congestion on non-EIM constraints.