County annual report · FIPS 48457
2021 Tyler County, TX Power Outage Report
In 2021, customers in Tyler County, TX went without power for an average of 29.5 hours, a total of 132K customer-hours (Texas average 21.0 hours). That ranks 98th worst of 252 Texas counties and 302nd 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 Tyler 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 | April 16, 2021 04:30 | April 16, 2021 20:00 | 15h 30m | 3,412 | 12K |
| 2 | February 14, 2021 23:45 | February 18, 2021 20:45 | 3d 21h | 2,704 | 46K |
| 3 | April 20, 2021 15:00 | April 20, 2021 16:00 | 1h | 1,930 | 1,069 |
| 4 | January 3, 2021 15:45 | January 3, 2021 18:45 | 3h | 1,922 | 5,536 |
| 5 | October 28, 2021 08:30 | October 29, 2021 16:45 | 1d 8h | 1,712 | 8,194 |
| 6 | February 25, 2021 19:00 | February 25, 2021 20:00 | 1h | 1,686 | 844 |
| 7 | June 23, 2021 19:15 | June 23, 2021 21:15 | 2h | 1,425 | 799 |
| 8 | June 14, 2021 23:00 | June 15, 2021 07:30 | 8h 30m | 1,345 | 3,486 |
| 9 | May 17, 2021 02:00 | May 25, 2021 21:30 | 8d 19h | 1,173 | 14K |
| 10 | February 20, 2021 04:30 | February 20, 2021 06:30 | 2h | 1,024 | 1,536 |
Outage episodes by size in 2021: 66 reached 100+ customers, 12 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 Tyler 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 | - |
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 ÷ 4,478 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. Tyler County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tyler 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/tyler-county