Item 9- Staff Briefing Second Quarter Operations Report — original pdf

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Austin Energy FY2025 Q2 Operations Update Lisa Martin Deputy General Manager & Chief Operating Officer May 12, 2025 © Austin Energy Item 9Agenda Executive Summary Environmental Performance Reliability Performance Strategic Goal Work Quarterly Operations Update 2 Executive Summary Renewable production 49% aggregate renewable production as a percentage of load in Q2. Carbon-free production 77% carbon-free generation as a percentage of load in Q2. High availability of generators Resources at Sand Hill, Fayette and South Texas Project all exhibited high availability sufficient to match winter demand. Reliability performance trend stable Performance metrics show similar outage duration and frequency compared to last quarter. 3 Austin Energy Operations Update Environmental Performance 4 Carbon-Free Generation as a Percentage of Load Monthly Data Nuclear Renewable 77% 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Apr-24 May-24 Jun-24 Jul-24 Aug-24 Sep-24 Oct-24 Nov-24 Dec-24 Jan-25 Feb-25 Mar-25 5 Carbon-Free Generation as a Percentage of Load Rolling 12-Month Average Data 87.5% 63% 6 Net Generation and Load Analysis FY2025 Q2 Generation vs. Consumption (MWh) Power Generation Cost by Fuel Type Nuclear Coal NG Renewable 8% 9% 60% 23% 1,595,664 631,272 374,506 920,479 3,286,773 Nuclear Coal NG Renewable G E N E R AT ION CON S UMPT ION Historical Q2 System Peak Demand (MW) Power Generation as a Percent of Consumption 2,800 2,700 2,600 2,500 2,400 2,300 2,200 2,100 Other 23% Nuclear 28% Renewable 49% 2022 2023 2024 2025 7 Austin Energy Operations Update Reliability Performance 8 Generator Commercial Availability FY2025 Q2 Generation Resource Sand Hill Combined Cycle Fayette Power Project South Texas Project Commercial Availability Summer Target Commercial Availability Q2 Actuals 95% 97% 100% 65.5% 89.8% 100% 9 Electric Vehicle Charging Station Operations EV Charging Operations Updates • Overall charging network had an uptime of 98.3% on a 12-month rolling average. • DC Fast Charging had a cumulative uptime of 91% on a 12-month rolling average. • Austin Energy actively engaged ChargePoint and Smart Charge America to perform reactive and preventative maintenance. Reporting Outages EV Drivers can report outages through: • ChargePoint app. • Austin 3-1-1. • Email – pluginaustin@austinenergy.com. 10 ChargePoint measures station uptime as the portion of time each individual charging port is working over a defined time period. Electric Vehicle Charging Station Operations Charging Sessions EV Charging Station Usage • Averaging over 32,000 charging sessions per month. • 673 MWh of energy dispensed on average each month. • Peak usage time: 9 a.m. – 2 p.m. Average Session Length 11 Distribution Reliability – Q2 FY2025 Average duration of outages in minutes Average time to restore service to affected customer Average number of outages per customer 1.76 213.60 112.65 84.55 0.84 71.11 Austin Energy Q2 FY2025 Texas Avg. CY2023* Austin Energy Q2 FY2025 Texas Avg. CY2023* Austin Energy Q2 FY2025 Texas Avg. CY2023* Austin Energy trendline Austin Energy trendline 1.00 0.80 0.60 0.40 0.20 0.00 FY22 Q3 FY22 Q4 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 100 80 60 40 20 0 Austin Energy trendline Austin Energy trendline 120 100 80 60 40 20 0 FY22 Q3 FY22 Q4 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY22 Q3 FY22 Q4 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 SAIFI – System Average Interruption Frequency Index SAIDI – System Average Interruption Duration Index CAIDI – Customer Average Interruption Duration Index Note: Major event days are excluded from reliability metrics *Texas Avg. CY2023-Final Data-EIA Final Data for each metric 12 Austin Energy Operations Update Strategic Goals & Other Updates 13 Grid Resilience Initiatives – FY2025 Q2 Improve Distribution System Reliability Identify, rank and address feeder maintenance needs in areas historically impacted by outages and most susceptible to wildfire risk. • 25 circuits underway. • 9 circuits reached end-to-end completion as of March 31, 2024. • 79 smart grid devices installed in FY 2024 to enhance electric system performance. • Underground Feasibility Study completed. • Overhead Hardening Study underway. • Awaiting updates on Texas Department of Emergency Management Grid Resiliency grants for Vegetation Management and Wildfire Mitigation improvements. 14 Black Start Considerations Black Start: The process to restore the electric grid after a full or partial blackout • Current Black Start contracts with ERCOT through 2026 • Anticipate the next ERCOT Request for Proposal in late 2025 or early 2026 (monitoring for battery storage applicability) • Additional units capable but require substantial modifications • Any new peaker units would be outfitted for black start capability NOAA-20 Satellite Views of Power Outages across Texas Feb. 16, 2021 15 Battery Storage Request for Proposal Update March April May – June July Request for Proposal deadline March 24 Analysis completed on viable projects Many proposals were outside Austin Energy service territory Have shortlisted projects and contract discussions are underway July 14 EUC opportunity to review recommendations Targeting July 24 for City Council approval Tariff and regulatory risks are currently elevated and could potentially present challenges 16 ©Austin Energy. 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