County annual report · FIPS 05131
2021 Sebastian County, AR Power Outage Report
In 2021, customers in Sebastian County, AR went without power for an average of 5.4 hours, a total of 419K customer-hours (Arkansas average 5.4 hours). That ranks 43rd worst of 75 Arkansas counties and 1254th of 2,974 nationally.
Compared with AR, the US and 2020
Coverage line is EAGLE-I's share of Arkansas customers tracked each year.
Biggest outages in Sebastian 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 | May 4, 2021 03:00 | May 6, 2021 23:00 | 2d 20h | 14,250 | 311K |
| 2 | February 16, 2021 13:00 | February 16, 2021 20:30 | 7h 30m | 7,198 | 22K |
| 3 | November 19, 2021 18:30 | November 19, 2021 20:15 | 1h 45m | 3,727 | 5,706 |
| 4 | July 11, 2021 01:15 | July 11, 2021 20:45 | 19h 30m | 3,542 | 16K |
| 5 | May 20, 2021 09:45 | May 20, 2021 12:00 | 2h 15m | 2,437 | 4,243 |
| 6 | August 17, 2021 17:15 | August 17, 2021 21:00 | 3h 45m | 1,953 | 2,421 |
| 7 | October 15, 2021 14:15 | October 15, 2021 18:15 | 4h | 1,510 | 3,330 |
| 8 | June 4, 2021 21:45 | June 5, 2021 01:00 | 3h 15m | 1,431 | 1,081 |
| 9 | May 12, 2021 13:15 | May 12, 2021 15:30 | 2h 15m | 974 | 751 |
| 10 | July 28, 2021 23:45 | July 29, 2021 00:45 | 1h | 779 | 218 |
Outage episodes by size in 2021: 81 reached 100+ customers, 8 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 Sebastian 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 |
|---|---|---|---|---|---|
| Southwestern Electric Power Co | 2021 | 11.8 hrs | 2.41 | 5.1 hrs | 1.79 |
| Arkansas Valley Elec Coop Corp | 2021 | 6.0 hrs | 2.06 | 2.8 hrs | 1.88 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Arkansas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 77,727 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. Sebastian County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sebastian County, AR 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/arkansas/sebastian-county