County annual report · FIPS 48073
2021 Cherokee County, TX Power Outage Report
In 2021, customers in Cherokee County, TX went without power for an average of 28.1 hours, a total of 836K customer-hours (Texas average 21.0 hours). That ranks 105th worst of 252 Texas counties and 316th 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 Cherokee 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 18:30 | February 23, 2021 06:15 | 8d 11h | 12,169 | 377K |
| 2 | January 10, 2021 21:15 | January 15, 2021 10:45 | 4d 13h | 8,489 | 264K |
| 3 | June 8, 2021 13:15 | June 9, 2021 03:00 | 13h 45m | 5,225 | 5,188 |
| 4 | October 28, 2021 14:15 | October 31, 2021 06:30 | 2d 16h | 3,897 | 31K |
| 5 | June 23, 2021 23:15 | June 24, 2021 21:15 | 22h | 2,723 | 1,738 |
| 6 | March 17, 2021 12:15 | March 18, 2021 14:45 | 1d 2h | 2,717 | 8,720 |
| 7 | September 9, 2021 17:30 | September 9, 2021 21:45 | 4h 15m | 2,666 | 673 |
| 8 | May 9, 2021 20:45 | May 10, 2021 22:45 | 1d 2h | 1,834 | 2,618 |
| 9 | March 27, 2021 23:15 | March 31, 2021 23:15 | 4d | 1,685 | 14K |
| 10 | August 4, 2021 13:45 | August 5, 2021 22:15 | 1d 8h | 1,643 | 2,144 |
Outage episodes by size in 2021: 95 reached 100+ customers, 22 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 Cherokee 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 |
|---|---|---|---|---|---|
| Oncor Electric Delivery Company LLC | 2017 | 3.4 hrs | 1.69 | 2.4 hrs | 1.49 |
| Houston County Elec Coop Inc | - | - | - | - | - |
| Cherokee County Elec Coop Assn - (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 94% of Texas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 29,708 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. Cherokee County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), Cherokee 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/cherokee-county