There were no DRUC commitments in November. There were 3 HRUC commitments in November. HRUC Commitments Resource Location # of Resources Operating Day Total # of Hours Committed Total MWhs Reason for Commitment South Central 1 11/14/2016 10 460 Local Congestion South Central 1 11/15/2016 1 46 Local Congestion Southern 1 11/29/2016 9 2,858 Local Congestion B_DAVIS_CC1_1 Wind Generation as a Percent of Load Congestion Analysis The number of congestion events experienced by the system decreased in November. There were thirty-one instances of activity on the Generic Transmission Constraints (GTCs) in November. Notable Constraints for November 26 reportable events (49 for October 2016) 167 congestion events (347 for October 2016, 228 for November 2015) Nodal protocol section 3.20 specifies that ERCOT shall identify transmission constraints that are active or binding three or more times within a calendar month. As part of this process, ERCOT reports congestion that meets this criterion to ROS. In addition ERCOT also highlights notable constraints that have an estimated congestion rent exceeding $1,000,000 for a calendar month. These constraints are detailed in the table below. Rows highlighted in blue indicate the congestion was affected by one or more outages. For a list of all constraints activated in SCED for the month of November, please see Appendix A at the end of this report. Contingency Name Overloaded Element # of Days Active Congestion Rent Transmission Project Comments Basecase Panhandle GTC 20 $17,822,792.99 Panhandle Upgrade Multiple area line outages DCKT Hill Country - Marion and Elmcreek 345 kV Cibolo - Schertz 138kV 11 $7,220,084.57 Cibolo to Schertz T-Line (T303) Planned Outage on 345 kV line from SKYLINE to MARION and ELMCREEK DCKT Gibbons Creek - Singleton 345 kV Jewett - Singleton 345kV 1 $6,665,002.04 Houston Import Project Unavoidable extension on 345 kV bus
Fort Worth Subsation to West Denton 138 KV Jim Christal Substation - West Denton 138kV 2,075 $ 10,854,453.30 345kv Fort Worth Subsation - West Denton 138kV 1,774 $ 10,027,611.63 Moss Switch to Odessa Ehv Switch 345 KV Odessa EHV Switch to Trigas Odessa Tap 2,101 $ 9,455,517.12 Hcksw-Allnc&Rnksw 345kv Mountain Ses - Morris Dido 138kV 1,481 $ 9,187,189.06 4252 Hillctry-Marion&Elmcreek 345kv Cibolo - Schertz 138kV 1,308 $ 7,775,371.11 Gibcrk-Sng 345 Kv Jewett - Singleton 345kV 1,332 $ 7,555,045.65 Basecase Valley Import 205 $ 7,406,577.64 LRGV (ower Rio Grande Valley) Import Project Bm-Sr73 & Sr81 138kv Bellaire - San Felipe 196 $ 7,119,922.62 4703 Rosen Heights to Eagle Mountain Compressor (5)138/138/138/138/138 KV Rosen Heights Tap 2 - Morris Dido 138kV 857 $ 6,945,775.57 4252 Meadow to Ph Robinson 345 KV Meadow AT1 345/138kV 89 $ 6,552,987.55 4708 WA Parish - Bailey & Hillje 345 kV Oasis - Dow Chemical 345kV 64 $ 5,749,309.96 345kv Fort Subsation - West Denton 138kV 791 $ 5,462,367.54 Hcksw-Allnc&Rnksw 345kv Rosen Heights Tap 2 - Morris Dido 138kV 805 $ 5,063,292.44 4252 Carbide to Loma Alta Substation 138 KV La Palma - Villa Cavazos 138kV 505 $ 5,060,645.62 4490 System Events Peak Load The unofficial ERCOT peak load for the month was 50,084 MW and occurred on November 2nd during hour ending 17:00. Instantaneous peak was 50,198 MW November 2015 actual peak was 45,014 MW Load Shed Events None. Stability Events None.