County annual report · FIPS 40013
2021 Bryan County, OK Power Outage Report
In 2021, customers in Bryan County, OK went without power for an average of 3.5 hours, a total of 104K customer-hours (Oklahoma average 3.2 hours). That ranks 38th worst of 77 Oklahoma counties and 1678th of 2,974 nationally.
Compared with OK, the US and 2020
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Bryan 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 20, 2021 05:15 | February 20, 2021 10:30 | 5h 15m | 4,009 | 13K |
| 2 | June 5, 2021 22:00 | June 6, 2021 04:45 | 6h 45m | 3,668 | 8,199 |
| 3 | February 26, 2021 04:30 | February 26, 2021 05:45 | 1h 15m | 3,611 | 3,721 |
| 4 | May 13, 2021 16:45 | May 13, 2021 18:15 | 1h 30m | 2,787 | 3,889 |
| 5 | December 12, 2021 17:00 | December 12, 2021 22:00 | 5h | 2,433 | 9,654 |
| 6 | May 10, 2021 17:30 | May 10, 2021 20:45 | 3h 15m | 2,358 | 1,409 |
| 7 | March 4, 2021 16:15 | March 4, 2021 17:00 | 45m | 1,984 | 1,488 |
| 8 | February 14, 2021 19:15 | February 15, 2021 15:45 | 20h 30m | 1,846 | 7,986 |
| 9 | September 29, 2021 22:45 | October 18, 2021 16:45 | 18d 18h | 1,789 | 15K |
| 10 | June 6, 2021 21:00 | June 6, 2021 22:15 | 1h 15m | 1,330 | 1,663 |
Outage episodes by size in 2021: 43 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 Bryan 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 |
|---|---|---|---|---|---|
| Southeastern Electric Coop Inc - (OK) | 2021 | 7.0 hrs | 1.50 | 3.5 hrs | 1.40 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Choctaw 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 93% of Oklahoma's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 29,723 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. Bryan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bryan County, OK 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/oklahoma/bryan-county