Congestion Costs for Calendar Year 2018 The following table represents the top twenty active constraints for the calendar year based on the estimated congestion rent attributed to the congestion. ERCOT updates this list on a monthly basis. # of 5-min Estimated Transmission Contingency Binding Element SCED Congestion Rent Project Intervals Yucca Yucca Drive Switch - Junction Solstice to LINTERNA LIN 1 17,620 251,851,642.32 Gas Pad 138kV (4549) LP&L Option 4ow & Panhandle Basecase PNHNDL GTC 27,124 98,457,107.57 Loop (5180, 5208) Oncor_NW Carrollton - Carrollton Northwest - CRLNW-LWSSW 345kV 13,115 60,311,425.16 Lakepointe Tnp 138kV LakePointe (5488) Congestion Management LEWISVILLE SWITCH to Ti Tnp - West Tnp Plan # 4 and 3,103 35,839,701.17 JONES STREET TNP LIN _A 138kV Stewart Road: Construct 345 kV cut-in (5604) Wagley Robertson (2076) - Blue Mound Blue - Wagley EMSES-SAGNA 138kV 6,326 35,676,195.49 (2071) 138-kV Robertson 138kV line upgrade (2017RTP NC10) Stewart Road: EDINBURG TRX 1382 North Edinburg 1,460 35,354,554.62 Construct 345 kV 345/138 345/1kV cut-in (5604) Ennis Creek - Cogdell 69 kV Knapp - Scurry Line (4554) & DMTSW-SCOSW 345KV 11,563 21,960,230.71 Chevron 138kV Ennis Creek 138 kV Switching Station (6269) La Palma Dynamic Reactive (5588) Basecase VALIMP GTC 601 19,938,471.66 and Pharr Dynamic Reactive (5596) Forney West - Forney Ryssw-Forsw 345kV 1,735 16,044,364.37 Switch 138kV
Congestion Costs for Calendar Year 2018 The following table represents the top twenty active constraints for the calendar year based on the estimated congestion rent attributed to the congestion. ERCOT updates this list on a monthly basis. Contingency Binding Element # of 5-min SCED Intervals Estimated Congestion Rent Transmission Project Solstice to LINTERNA LIN 1 Yucca Drive Switch - Gas Pad 138kV 17,620 251,851,642.32 Yucca Junction (4549) Basecase PNHNDL GTC 27,124 98,457,107.57 LP&L Option 4ow & Panhandle Loop (5180, 5208) CRLNW-LWSSW 345kV Carrollton Northwest - Lakepointe Tnp 138kV 13,115 60,311,425.16 Oncor_NW Carrollton - LakePointe (5488) LEWISVILLE SWITCH to JONES STREET TNP LIN _A Ti Tnp - West Tnp 138kV 3,103 35,839,701.17 Congestion Management Plan # 4 and Stewart Road: Construct 345 kV cut-in (5604) EMSES-SAGNA 138kV Blue - Wagley Robertson 138kV 6,326 35,676,195.49 Wagley Robertson (2076) - Blue Mound (2071) 138-kV line upgrade (2017RTP NC10) EDINBURG TRX 1382 345/138 North Edinburg 345/1kV 1,460 35,354,554.62 Stewart Road: Construct 345 kV cut-in (5604) DMTSW-SCOSW 345KV Knapp - Scurry Chevron 138kV 11,563 21,960,230.71 Ennis Creek - Cogdell 69 kV Line (4554) & Ennis Creek 138 kV Switching Station (6269) Basecase VALIMP GTC 601 19,938,471.66 La Palma Dynamic Reactive (5588) and Pharr Dynamic Reactive (5596) Ryssw-Forsw 345kV Forney West - Forney Switch 138kV 1,735 16,044,364.37
Sep_18_ERCOT_Operations_Report_Public.docx