County annual report · FIPS 48171
2020 Gillespie County, TX Power Outage Report
In 2020, customers in Gillespie County, TX went without power for an average of 1.7 hours, a total of 29K customer-hours (Texas average 5.3 hours). That ranks 227th worst of 254 Texas counties and 2366th of 3,019 nationally.
Compared with TX, the US and 2019
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in Gillespie County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 4, 2020 17:15 | September 4, 2020 23:45 | 6h 30m | 2,185 | 6,063 |
| 2 | May 28, 2020 00:00 | May 29, 2020 05:00 | 1d 5h | 987 | 1,678 |
| 3 | December 13, 2020 16:00 | December 13, 2020 22:00 | 6h | 724 | 3,191 |
| 4 | January 16, 2020 16:00 | January 16, 2020 19:30 | 3h 30m | 708 | 2,123 |
| 5 | May 25, 2020 00:45 | May 26, 2020 01:15 | 1d | 648 | 3,161 |
| 6 | March 9, 2020 21:30 | March 9, 2020 23:15 | 1h 45m | 440 | 770 |
| 7 | May 12, 2020 07:00 | May 12, 2020 11:00 | 4h | 323 | 485 |
| 8 | June 3, 2020 14:00 | June 3, 2020 17:45 | 3h 45m | 297 | 936 |
| 9 | April 12, 2020 09:00 | April 12, 2020 17:15 | 8h 15m | 294 | 736 |
| 10 | April 9, 2020 18:15 | April 9, 2020 19:45 | 1h 30m | 190 | 58 |
Outage episodes by size in 2020: 19 reached 100+ customers, 1 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 2020, 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 | 2020 | 4.7 hrs | 1.67 | 1.9 hrs | 1.25 |
| Pedernales Electric Coop, Inc | 2020 | 58 min | 0.68 | 58 min | 0.68 |
| Central Texas Elec Coop, Inc | 2020 | 2.2 hrs | 1.32 | 1.8 hrs | 1.24 |
| 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 63% of Texas's customers in 2020; 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, 2020, 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/2020/texas/gillespie-county