County annual report · FIPS 48453
2021 Travis County, TX Power Outage Report
In 2021, customers in Travis County, TX went without power for an average of 30.0 hours, a total of 19.3M customer-hours (Texas average 21.0 hours). That ranks 96th worst of 252 Texas counties and 295th of 2,974 nationally.
Compared with TX, the US and 2020
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Travis County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 11, 2021 14:45 | February 24, 2021 13:00 | 12d 22h | 273,849 | 17.6M |
| 2 | May 28, 2021 12:00 | June 5, 2021 09:45 | 7d 21h | 44,840 | 562K |
| 3 | January 10, 2021 07:30 | January 12, 2021 07:15 | 1d 23h | 33,327 | 232K |
| 4 | October 27, 2021 08:00 | October 28, 2021 08:45 | 1d | 15,100 | 65K |
| 5 | April 1, 2021 15:30 | April 2, 2021 02:45 | 11h 15m | 11,273 | 2,885 |
| 6 | December 17, 2021 20:30 | December 19, 2021 07:15 | 1d 10h | 8,854 | 22K |
| 7 | May 18, 2021 12:45 | May 19, 2021 09:00 | 20h 15m | 7,670 | 14K |
| 8 | August 15, 2021 13:15 | August 17, 2021 08:30 | 1d 19h | 7,502 | 19K |
| 9 | September 23, 2021 12:30 | September 24, 2021 08:15 | 19h 45m | 7,385 | 13K |
| 10 | October 13, 2021 11:00 | October 15, 2021 09:15 | 1d 22h | 7,258 | 12K |
Outage episodes by size in 2021: 269 reached 100+ customers, 102 reached 1,000+ customers, 5 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Travis County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Pedernales Electric Coop, Inc | 2021 | 2.5 hrs | 1.13 | 84 min | 1.13 |
| Bluebonnet Electric Coop, Inc | 2021 | 16.5 hrs | - | 1.6 hrs | 1.08 |
| Austin Energy | 2021 | 32.0 hrs | 1.89 | 63 min | 0.76 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 94% of Texas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 641,926 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Travis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Travis County, TX annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/texas/travis-county