County annual report · FIPS 48171
2021 Gillespie County, TX Power Outage Report
In 2021, customers in Gillespie County, TX went without power for an average of 118.0 hours, a total of 2.0M customer-hours (Texas average 21.0 hours). That ranks 17th worst of 252 Texas counties and 59th 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 Gillespie 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 13:00 | March 7, 2021 00:45 | 23d 11h | 9,335 | 2.0M |
| 2 | June 19, 2021 14:45 | June 19, 2021 18:45 | 4h | 5,105 | 4,226 |
| 3 | June 3, 2021 11:45 | June 4, 2021 03:30 | 15h 45m | 2,377 | 4,027 |
| 4 | July 9, 2021 09:00 | July 9, 2021 12:45 | 3h 45m | 2,320 | 6,363 |
| 5 | January 12, 2021 13:45 | January 12, 2021 17:45 | 4h | 1,294 | 1,908 |
| 6 | June 5, 2021 14:30 | June 5, 2021 16:30 | 2h | 1,053 | 1,054 |
| 7 | May 28, 2021 03:00 | May 28, 2021 05:30 | 2h 30m | 986 | 2,197 |
| 8 | August 15, 2021 19:30 | August 15, 2021 23:45 | 4h 15m | 743 | 587 |
| 9 | August 2, 2021 11:30 | August 5, 2021 16:15 | 3d 4h | 632 | 989 |
| 10 | April 30, 2021 23:45 | May 1, 2021 04:00 | 4h 15m | 605 | 1,060 |
Outage episodes by size in 2021: 26 reached 100+ customers, 6 reached 1,000+ customers, 0 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 Gillespie 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 |
|---|---|---|---|---|---|
| AEP Texas North Company | 2021 | 18.9 hrs | 2.72 | 1.9 hrs | 1.24 |
| Pedernales Electric Coop, Inc | 2021 | 2.5 hrs | 1.13 | 84 min | 1.13 |
| Central Texas Elec Coop, Inc | 2021 | 137.5 hrs | 3.94 | 52.5 hrs | 2.54 |
| City of Fredericksburg - (TX) | - | - | - | - | - |
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 ÷ 17,022 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. Gillespie County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Gillespie 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/gillespie-county