County annual report · FIPS 48471
2021 Walker County, TX Power Outage Report
In 2021, customers in Walker County, TX went without power for an average of 36.1 hours, a total of 598K customer-hours (Texas average 21.0 hours). That ranks 86th worst of 252 Texas counties and 251st 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 Walker 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 14, 2021 22:15 | February 21, 2021 00:15 | 6d 2h | 12,121 | 405K |
| 2 | December 6, 2021 16:00 | December 7, 2021 00:45 | 8h 45m | 4,118 | 9,370 |
| 3 | May 11, 2021 09:45 | May 12, 2021 23:30 | 1d 13h | 4,110 | 7,821 |
| 4 | June 9, 2021 14:00 | June 10, 2021 00:00 | 10h | 3,505 | 1,799 |
| 5 | May 17, 2021 22:00 | May 18, 2021 19:30 | 21h 30m | 3,405 | 4,013 |
| 6 | September 5, 2021 13:45 | September 5, 2021 14:15 | 30m | 3,223 | 1,611 |
| 7 | May 2, 2021 00:30 | May 2, 2021 03:45 | 3h 15m | 3,039 | 4,078 |
| 8 | April 20, 2021 14:45 | April 20, 2021 21:00 | 6h 15m | 2,589 | 2,712 |
| 9 | May 9, 2021 17:45 | May 9, 2021 21:30 | 3h 45m | 2,568 | 2,035 |
| 10 | August 18, 2021 17:00 | August 19, 2021 05:15 | 12h 15m | 2,158 | 5,462 |
Outage episodes by size in 2021: 125 reached 100+ customers, 27 reached 1,000+ customers, 1 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 Walker 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 |
|---|---|---|---|---|---|
| Entergy Texas Inc. | 2021 | 16.7 hrs | 3.31 | 4.7 hrs | 2.02 |
| Sam Houston Electric Coop Inc | 2021 | 11.3 hrs | - | 4.3 hrs | - |
| Houston County Elec Coop Inc | - | - | - | - | - |
| Mid-South Electric Coop Assn | - | - | - | - | - |
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 ÷ 16,570 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. Walker County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Walker 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/walker-county