County annual report · FIPS 48029
2021 Bexar County, TX Power Outage Report
In 2021, customers in Bexar County, TX went without power for an average of 18.3 hours, a total of 18.7M customer-hours (Texas average 21.0 hours). That ranks 149th worst of 252 Texas counties and 469th 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 Bexar 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 13, 2021 10:45 | February 21, 2021 11:00 | 8d | 329,782 | 16.7M |
| 2 | May 28, 2021 22:45 | June 3, 2021 08:15 | 5d 9h | 33,254 | 469K |
| 3 | April 28, 2021 12:00 | May 3, 2021 11:15 | 4d 23h | 33,107 | 205K |
| 4 | May 17, 2021 00:30 | May 20, 2021 09:45 | 3d 9h | 32,969 | 189K |
| 5 | September 28, 2021 12:45 | October 1, 2021 07:30 | 2d 18h | 19,207 | 111K |
| 6 | March 29, 2021 11:45 | March 31, 2021 09:30 | 1d 21h | 15,248 | 16K |
| 7 | June 15, 2021 10:45 | June 19, 2021 05:00 | 3d 18h | 15,099 | 57K |
| 8 | September 6, 2021 12:15 | September 21, 2021 05:00 | 14d 16h | 14,368 | 79K |
| 9 | July 5, 2021 20:30 | July 8, 2021 08:45 | 2d 12h | 12,739 | 74K |
| 10 | January 14, 2021 12:45 | January 15, 2021 05:45 | 17h | 8,779 | 6,800 |
Outage episodes by size in 2021: 225 reached 100+ customers, 105 reached 1,000+ customers, 9 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 Bexar 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 |
|---|---|---|---|---|---|
| Pedernales Electric Coop, Inc | 2021 | 2.5 hrs | 1.13 | 84 min | 1.13 |
| Guadalupe Valley Elec Coop Inc | 2021 | 2.0 hrs | 1.28 | 84 min | 1.06 |
| City of San Antonio - (TX) | 2021 | 2.9 hrs | 1.58 | 68 min | 1.01 |
| Bandera Electric Coop, Inc | 2021 | 15.7 hrs | 18.96 | 64 min | 0.63 |
| Karnes Electric Coop Inc | - | - | - | - | - |
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 ÷ 1,024,586 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. Bexar County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bexar 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/bexar-county