Item 16- Presentation: Second Quarter Operations Report — original pdf

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Austin Energy Operations Update FY2026 Q2 Lisa Martin Deputy General Manager & Chief Operating Officer May 2026 © Austin Energy Item 16Agenda Quarterly Operations Update Executive Summary Environmental Performance Reliability Performance 2 Executive Summary Renewable Production 46% aggregate renewable production as a percentage of load in Q2. Carbon-Free Production 73% carbon-free generation as a percentage of load in Q2. Generator Availability Resource availability is generally in line with expected seasonal outages starting at the end of the quarter. 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 73% 90% 80% 70% 60% 50% 40% 30% 20% 10% 0% Carbon-Free Average Nuclear Renewable 5 Carbon-Free Generation as a Percentage of Load 63% 12-month rolling avg. 6 Net Generation and Load Analysis – FY2026 Q2 Generation vs. Consumption (MWh) Nuclear Coal Natural Gas Renewable Power Generation as a Percent of Consumption 1,487,208 572,420 387,655 855,331 3,222,976 Other 27% Nuclear 27% Renewable 46% Generation Consumption Power Generation Cost by Fuel Type Historical Q2 System Peak Demand (MW) 6% 8% 59% 27% W M Nuclear Coal Natural Gas Renewable 7 Reliability Performance Austin Energy Operations Update Generator Performance – FY 2026 Q2 Generation Resource Commercial Availability South Texas Project Fayette Power Project Sand Hill Combined Cycle Sand Hill Peakers Decker Peakers Nacogdoches Plant 93% 97% 59% 99% 92% 67% 9 Electric Vehicle Charging Network – FY2026 Q2 100% 95% 90% 85% 80% 100% 95% 90% 85% 80% Overall Network Uptime 12-month rolling average 98% 98% 99% 99% Q3 FY 25 Q4 FY25 Q1 FY26 Q2 FY26 DC Fast Chargers Uptime 12-month rolling average 88% Q3 FY25 89% Q4 FY 25 90% Q1 FY26 92% Q2 FY26 Report Charging Station Outages • ChargePoint app • Austin 3-1-1 • pluginaustin@austinenergy.com Electric Vehicle Charging Stations Charging Sessions in Q2 Average Monthly: 28,784 28,424 26,932 30,997 January February March 35,000 30,000 25,000 20,000 15,000 10,000 5,000 0 EV Charging Station Usage FY2026 Q2 607 Megawatt Hours average monthly energy dispensed 9 a.m. – 2 p.m. peak usage time 2h 59m average charging time Distribution Reliability – Q2 FY2026 Average number of outages per customer Average duration of outages in minutes Average minutes to restore service to affected customer 0.98 1.398 153.40 77.09 Austin Energy Q2 FY2026 Texas Average CY2024* Austin Energy Q2 FY2026 Texas Average CY2024* 109.70 78.98 Austin Energy Q2 FY2026 Texas Average CY2024* Austin Energy Trendline Austin Energy Trendline 1.2 1.0 0.8 0.6 0.4 0.2 0.0 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 FY26 Q1 FY26 Q2 120 100 80 60 40 20 0 Austin Energy Trendline 120 100 80 60 40 20 0 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 FY26 Q1 FY26 Q2 FY23 Q3 FY23 Q4 FY24 Q1 FY24 Q2 FY24 Q3 FY24 Q4 FY25 Q1 FY25 Q2 FY25 Q3 FY25 Q4 FY26 Q1 FY26 Q2 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 * TX EIA Electric Power Annual Average w/o MED – CY2024 ©Austin Energy. All rights reserved. Austin Energy and the Austin Energy logo and combinations thereof are trademarks of Austin Energy, the electric department of the City of Austin, Texas. Other names are for informational purposes only and may be trademarks of their respective owners.