County annual report · FIPS 48031
2021 Blanco County, TX Power Outage Report
In 2021, customers in Blanco County, TX went without power for an average of 37.3 hours, a total of 197K customer-hours (Texas average 21.0 hours). That ranks 82nd worst of 252 Texas counties and 240th 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 Blanco 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 17:30 | March 2, 2021 23:15 | 19d 5h | 5,342 | 181K |
| 2 | October 27, 2021 09:30 | October 27, 2021 19:45 | 10h 15m | 1,345 | 3,460 |
| 3 | October 5, 2021 14:15 | October 5, 2021 15:30 | 1h 15m | 1,315 | 330 |
| 4 | August 15, 2021 17:30 | August 16, 2021 03:30 | 10h | 702 | 257 |
| 5 | September 6, 2021 22:45 | September 7, 2021 06:30 | 7h 45m | 660 | 367 |
| 6 | September 15, 2021 13:00 | September 15, 2021 20:45 | 7h 45m | 566 | 1,761 |
| 7 | May 18, 2021 19:00 | May 19, 2021 04:00 | 9h | 515 | 1,607 |
| 8 | August 13, 2021 20:15 | August 13, 2021 20:30 | 15m | 445 | 111 |
| 9 | September 14, 2021 14:15 | September 14, 2021 18:45 | 4h 30m | 404 | 1,814 |
| 10 | September 30, 2021 14:00 | September 30, 2021 20:45 | 6h 45m | 402 | 1,596 |
Outage episodes by size in 2021: 17 reached 100+ customers, 3 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 Blanco 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 |
| Central Texas Elec Coop, Inc | 2021 | 137.5 hrs | 3.94 | 52.5 hrs | 2.54 |
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 ÷ 5,297 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. Blanco County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Blanco 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/blanco-county