Austin Energy FY2022 Q3 Operations Update - August 2022 Item 10 - AustinTexas.gov
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Item 10
Austin Energy FY2022 Q3
Operations Update
August 2022
Stuart Reilly
Acting Deputy General Manager & Chief Operating Officer
© 2022 Austin Energy
1
Agenda
Executive Summary
Quarterly Reliability Performance
Operations
Environmental Performance
Update
Grid Resilience Strategic Goal
2
Executive Summary
Generator availability on-target Reliability performance stable
For the quarter, resources mostly met Performance over the longer term is trending
availability targets, except where FPP statistically consistent with top quartile
outages were experienced. industry benchmarks.
Renewable production on-target Carbon free production on-target
For the quarter, aggregate renewable For the month of April, 97% carbon-free
production as a percentage of load at 61%. generation as a percentage of load.
3
Austin Energy Operations Update
Reliability Performance
4
Generator Commercial Availability & Start Success
Commercial Availability
Commercial Availability
Target Seasonal Actuals (%)
Generation Resource
Commercial % Availability Q2 FY22 Q3 FY22
AVG AVG
Decker Steam Units 95 98 -
Sand Hill Combined Cycle 95
* 55 100
Fayette Units 97 97 79
South Texas Project 100 100 100
Commercial Availability values reflect maintenance or refueling outages typical for this period
Start Success
Start Success Actuals (%)
Start Success Target(%) Q2 FY22 Q3 FY22
AVG AVG
Simple Cycle Start Success 99 100 100
5
Net Generation and Load Analysis FY 2022 Q3
*Costs include fuel for generation, fuel transportation, renewable
Power purchases agreements
This information is unaudited and should be read in conjunction with the audited Comprehensive Financial 6
Reports for the City of Austin, when published onSystem Reliability
SAIDI w/o MED - CY19 - CY20 - CY21 - CY22
CAIDI = Customer Average Interruption Duration Index 80 71.51
TOTAL DURATION OF INTERRUPTIONS
68.44
Average time to restore service 60.41 60.88 61.39 63.40 62.71 62.95
52.77 54.21 57.89
SAIDI = System Average Interruption Duration Index 60 55.96
57.00
Total duration of interruptions for the average customer,
during a period of time 40
SAIFI = System Average Interruption Frequency Index
20
How often the average customer experiences a sustain
interruption, over a period of time
0
MED = Major Event Days CY19 Q3 CY19 Q4 CY20 Q1 CY20 Q2 CY20 Q3 CY20 Q4 CY21 Q1 CY21 Q2 CY21 Q3 CY21 Q4 CY22 Q1 CY22 Q2
TOP QUARTILE BENCHMARK
CAIDI w/o MED - CY19 - CY20 - CY21 - CY22 SAIFI w/o MED - CY19 - CY20 - CY21 - CY22
120 1.2
AVG. NUMBER OF INTERRUPTIONS PER
0.94
AVG. TIME TO RESTORE SERVICE
83.4 85.26 83.42 0.86
79.58 80.55 79.95 82.29 79.3 82.27 78.69 0.80 0.80
76.07 78.39 0.75 0.76
80 79.17 0.8 0.73 0.74 0.72
0.66 0.68 0.65 0.72
CUSTOMER
40 0.4
0 0
CY19 Q3 CY19 Q4 CY20 Q1 CY20 Q2 CY20 Q3 CY20 Q4 CY21 Q1 CY21 Q2 CY21 Q3 CY21 Q4 CY22 Q1 CY22 Q2 CY19 Q3CY19 Q4CY20 Q1CY20 Q2CY20 Q3CY20 Q4CY21 Q1CY21 Q2CY21 Q3CY21 Q4CY22 Q1CY22 Q2
TOP QUARTILE BENCHMARK TOP QUARTILE BENCHMARK
7Austin Energy Operations Update
Environmental Performance
8Carbon-Free Generation as a Percentage of Load
9Environmental Focus
Aragorn Solar Project is now
authorized to generate up to
187MW (previous limit set by
PPA was 180MW) – thus 7MW
increase in renewable portfolio
10Austin Energy Operations Update
Grid Resilience Strategic Goal
11Grid Resilience Initiatives
AE Strategic Goals 2020
Grid Resilience
Improve Distribution System Reliability
Identify, Rank, and Address feeder maintenance needs in areas historically beset by outages. Identify, Rank and Address system
hardening needs in areas most susceptible to wildfire risk.
Phase I – Top 10 Feeders in both Performance and Wildfire Criticality addressed (CY/2022 - IN PROGRESS)
Phase II – Overall Distribution Resilience Program established, roll out (Q1/2022 – COMPLETE)
Improve Substation Reliability
Evaluate substation equipment operation and address legacy equipment needs.
Phase I - Fiskville Substation Upgrades (COMPLETE)
Phase II- Slow Breaker Operation –Rank and Schedule Substation Breakers for maintenance and remediation
(COMPLETE)
Improve Underground Network Reliability
Starts with enabling greater Visibility to our downtown network through the integration of our network model into our Advanced
Distribution Management System
Phase I - Network Modeled in ADMS – (Q3/2020) (COMPLETE)
Phase II - Network Primary Circuits Complete/Modeled in ADMS – (Q2/2021) (COMPLETE)
Phase III -Network Secondary Circuits Complete/Modeled in ADMS – (Q4/2023 IN PROGRESS)
Transmission System of the Future
As part of the 2030 generation plan, Austin Energy is commissioning a Transmission system study that will investigate ways to
achieve our goals set forth in the plan while compensating for the loss of generation plants.
Phase I - Development of evaluation criteria (Q1/2021) (COMPLETE)
Phase II – Develop SOW for RFP release (Q2/2021) (COMPLETE)
Phase III – Transmission System Assessment (Q2/2023 IN PROGRESS) 12Austin Energy Operations Update
Hot Weather Preparedness
13ERCOT Energy Emergency Alert System
Conservation Alerts
EEA 1 EEA 2 EEA 3
• Conservation Needed • Conservation Critical • Operating reserves
below 1,000 MW and
• Operating reserves • Operating reserves not expected to
below 2,300 MW and below 1,750 MW and recover in 30 mins
ERCOT may ask not expected to not expected to and/or frequency
consumers to reduce recover w/in 30 mins recover w/in 30 mins cannot be maintained
electric use when tight
operating reserves are • ERCOT can mandate
expected. controlled outages*
Austin Energy *No controlled
activates Incident outages have
Command occurred in 2022 14Conservation Appeals
ERCOT issued conservation notices for July 11 and 13, 2022
• Public appeals to reduce consumption
• No ERCOT directives for controlled outages
• Austin Energy called on customers to conserve energy
15Local Outages
Common Causes
outagemap.austinenergy.com of Outages
Car Downed
Crashes Trees
Animal Interference
Equipment Construction
Issues Incidents
16Confidential & Proprietary ©2018 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.
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