Update on ETT CREZ Outages and Productivity Meeting
Presentation of the recent ETT CREZ outages timeline, current productivity status, budget overview, asset outage details, and upcoming plans for additional capacity efforts and network upgrades. Discussions on accountability, winterization, storm response, and transmission line availability.
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2021 Update on ETT CREZ Outages CMWG Meeting April 19, 2021 Kip Fox President, ETT 1
Agenda 1. Brief Timeline of Winter Storm Uri ETT Outages 2. Current CREZ Outage Schedule 3. Current Productivity 4. Other Discussion Items 5. Questions Slide 2
Timeline of ETT Asset Outages All 345kV lines returned to service prior to Feb 11th Midnight on 10th 1:20 am 3:00 am Midnight ERCOT DECLARES EMERGENCY OPERATIONS LEVEL 3 AEP WINTER STORM WARNING THROUGH 12th FOR NORTH TEXAS AEP WINTER STORM WARNING THROUGH 18th FOR CENTRAL AND WEST TEXAS 10:35 am AEP WINTER STORM WARNING THROUGH 15th FOR ENTIRE ETT TERRITORY NORMAL CONDITIONS 11th 12th & 13th 14th 15th 16th 17th 19th 18th 15th 7:48 AM (3.5 days) Trip: Laredo VFT (CFE outage) 8:05 am (15 min) 14th 9:02 am (LCRA) 14th 9:12 pm (2.8 days) 16th 11:55 pm (8.5 hours) Trip: Clear Crossing Dermott (Oncor) 345 kV Trip: LCRA Big Hill LCRA Kendall Trip: Hamilton Road SVC2 138 kV Trip: Lytle Lytle (CPS outage) 138 kV 14th 10:22 pm (13 hours) 17th 1:44 am (7.7 hours) 14th 1:17 pm (1.2 hrs) Trip: Barney Davis Nelson Sharpe 138 kV Trip: Nelson Sharpe Santa Cruz 138 kV Trip: Lytle Lytle (CPS) 138 kV CPS outage 14th 11:35 pm (13.6 hours) 17th 11:23 am (2.3 days) Trip: N. Edinburg Palmito (Sharyland outage) 345 kV Trip: Rocksprings (Pedernales Interconnection, LCRA and AEP Texas outages) 15th 12:36 am (6.5 hours) 17th 11:39 am (Developer outage with ETT support) Trip: Razorback Castroville (CPS outage) 138 kV Trip: Big Hill Wilson Ranch Wind Interconnection Slide 3
Slide 4 ETT 2021 Budget
Current Schedule Thanksgiving In-service In-service CC Clear Crossing WS West Shakelford EC Edith Clarke T Tesla *Edith Clarke Clear Crossing outages are bifurcated to allow generation output during inspections Slide 5
Current Productivity Edith Clark - Cottonwood Outage: Overall Availability OCT 23, 2020 - MAY 16, 2021 8.0 100% # of Days Available/worked per Week 90% 7.0 80% 6.0 Easter 70% Winter Storm Uri 5.0 Availability 60% 4.0 50% New Year Break 40% 3.0 30% 2.0 20% 1.0 10% 0.0 0% Axis Title available working days/wk worked days/wk weekly availability cumulative availability Slide 6
Other Discussion Items 2022 and Beyond Tentative Plan Additional Capacity Efforts Network upgrades for GTC s (all economic) New technology to reduce impedance, congestion, other issues Accountability issues to address in Texas Winterization certification/planning/additional work Storm quick response performance plan Transmission line availability (99.95%) 1.00 [(hours out x miles) / (1852 circuit miles x 8760 hrs)] Slide 7
