Item 11 - Briefing: Fourth Quarter Operations Report — original pdf
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Austin Energy FY2025 Q4 Operations Update Lisa Martin Deputy General Manager & Chief Operating Officer November 2025 © Austin Energy Item 11 Agenda Quarterly Operations Update Executive Summary Environmental Performance Reliability Performance Strategic Work 2 Executive Summary Renewable Production 34% aggregate renewable production as a percentage of load in Q4. Carbon-Free Production 55% carbon-free generation as a percentage of load in Q4. Generator Availability Resources at Sand Hill, Decker, Fayette and South Texas all exhibited high availability sufficient to match summer demand. Reliability Performance Performance metrics show similar outage duration and frequency compared to last quarter leading to a stabilized trend. 3 Environmental Performance Austin Energy Operations Update Carbon-Free Generation as a Percentage of Load Monthly Data 100% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% 55% Carbon-Free Average Nuclear Renewable 5 Carbon-Free Generation as a Percentage of Load Rolling 12-Month Average Data 65% 12-month average 6 Net Generation and Load Analysis – Q4 FY2025 Generation vs. Consumption (MWh) Power Generation Cost by Fuel Type 7% 8% 58% 27% Nuclear Coal Natural Gas Renewable 1,478,788 875,532 394,848 918,565 4,454,801 Nuclear Coal Natural Gas Renewable Generation Consumption Historical Q4 System Peak Demand (MW) Power Generation as a Percent of Consumption W M 3,150 3,100 3,050 3,000 2,950 2,900 2,850 2,800 2022 2023 2024 2025 7 Renewable 34% Other 45% Nuclear 21% Reliability Performance Austin Energy Operations Update Generator Performance – Q4 FY2025 Generation Resource Commercial Availability Actual Commercial Availability Summer Target South Texas Project Fayette Power Project Sand Hill Combined Cycle Sand Hill Peakers Decker Peakers 100% 100% 97% 99% 80% 100% 97% 95% 95% 95% 9 Electric Vehicle Charging Network – Q4 FY2025 100.00% 95.00% 90.00% 85.00% 80.00% 100.00% 95.00% 90.00% 85.00% 80.00% Overall Network Uptime 12-month rolling average 98% 98% 98% 99% Q1 FY 25 Q2 FY 25 Q3 FY25 Q4 FY25 DC Fast Chargers Uptime 12-month rolling average 91% 91% Q1 FY 25 Q2 FY25 88% Q3 FY25 89% Q4 FY25 Report Charging Station Outages • ChargePoint app • Austin 3-1-1 • pluginaustin@austinenergy.com Electric Vehicle Charging Stations EV Charging Station Usage Q4 FY2025 Charging Sessions in Q4 Average Monthly: 36,293 741 Megawatt Hours average monthly energy dispensed 40,000 35,000 30,000 25,000 20,000 15,000 10,000 5,000 - 35,910 36,649 36,321 July August September 9 a.m. – 2 p.m. peak usage time 4h 59m average plug-in time 2h 51m average charging time Distribution Reliability – Q4 FY2025 Average number of outages per customer Average duration of outages in minutes Average minutes to restore service to affected customer 1.76 0.98 74.30 213.60 112.65 76.13 Austin Energy Q4 FY2025 Texas Avg. CY2023* Austin Energy Q4 FY2025 Texas Avg. CY2023* Austin Energy Q4 FY2025 Texas Avg. CY2023* Austin Energy Trendline Austin Energy trendline 1.0 0.8 0.6 0.4 0.2 0.0 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 100 80 60 40 20 0 Austin Energy Trendline Austin Energy Trendline 120 100 80 60 40 20 0 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 FY23 Q1 FY23 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 SAIFI – System Average Interruption Frequency Index SAIDI – System Average Interruption Duration Index CAIDI – Customer Average Interruption Duration Index Major event days are excluded from reliability metrics *Texas Avg. CY2023-EIA Final Data for each metric Strategic Work Austin Energy Operations Update Battery Storage Deal Advances Climate and Reliability Goals Pictured: One of Jupiter Power's operational battery energy storage systems, Callisto I, in Houston, Texas – also a 400MWh battery • Signed contract with Jupiter Power • 100 megawatts, 4-hours • Commercial Operation by end of 2027 • Located in eastern Travis County, outside city limits • Local energy support will advance reliability, affordability and sustainability goals Renewable Requests for Proposals Issued: October 7, 2025 Response Deadline: November 21, 2025 Landfill Solar RFP • Seeking cost-effective proposals for a utility- scale solar Wind Energy RFP • Seeking cost-effective proposals for new wind energy resources • Located at the City of Austin FM812 Landfill • Located anywhere in ERCOT • Maximizing existing, local land as a productive • Accepting offers with or without an onsite battery renewable energy site storage pairing • Partnership with Austin Resource Recovery • Potentially good opportunity to increase renewable portfolio before federal tax credits expire 15 ©Austin Energy. 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