County annual report · FIPS 05027
2021 Columbia County, AR Power Outage Report
In 2021, customers in Columbia County, AR went without power for an average of 12.0 hours, a total of 138K customer-hours (Arkansas average 5.4 hours). That ranks 16th worst of 75 Arkansas counties and 681st 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 Columbia 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 | March 18, 2021 04:15 | March 18, 2021 14:15 | 10h | 4,334 | 8,672 |
| 2 | April 24, 2021 08:00 | April 26, 2021 16:15 | 2d 8h | 2,037 | 28K |
| 3 | June 28, 2021 21:30 | June 29, 2021 05:45 | 8h 15m | 1,742 | 5,589 |
| 4 | April 9, 2021 19:30 | April 12, 2021 04:30 | 2d 9h | 1,560 | 27K |
| 5 | February 15, 2021 12:30 | February 17, 2021 05:15 | 1d 16h | 1,219 | 5,354 |
| 6 | May 29, 2021 16:15 | May 29, 2021 19:45 | 3h 30m | 1,200 | 3,035 |
| 7 | July 16, 2021 22:15 | July 18, 2021 04:15 | 1d 6h | 1,173 | 9,970 |
| 8 | December 11, 2021 05:45 | December 11, 2021 14:45 | 9h | 1,056 | 2,459 |
| 9 | January 9, 2021 06:30 | January 9, 2021 09:30 | 3h | 1,005 | 2,041 |
| 10 | November 11, 2021 06:30 | November 11, 2021 21:30 | 15h | 980 | 3,067 |
Outage episodes by size in 2021: 50 reached 100+ customers, 9 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 Columbia 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 Arkansas LLC | 2021 | 6.4 hrs | 1.76 | 4.4 hrs | 1.51 |
| Southwest Arkansas E C C | 2021 | 8.2 hrs | 1.79 | 5.8 hrs | 1.49 |
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 ÷ 11,454 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. Columbia County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Columbia 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/columbia-county