County annual report · FIPS 05103
2021 Ouachita County, AR Power Outage Report
In 2021, customers in Ouachita County, AR went without power for an average of 23.8 hours, a total of 317K customer-hours (Arkansas average 5.4 hours). That ranks 2nd worst of 75 Arkansas counties and 357th 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 Ouachita 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 9, 2021 14:45 | April 13, 2021 21:30 | 4d 6h | 6,727 | 244K |
| 2 | December 19, 2021 00:00 | December 19, 2021 01:30 | 1h 30m | 1,531 | 2,297 |
| 3 | March 27, 2021 21:30 | March 29, 2021 05:15 | 1d 7h | 1,231 | 9,064 |
| 4 | March 1, 2021 17:45 | March 9, 2021 00:30 | 7d 6h | 713 | 6,169 |
| 5 | August 17, 2021 20:30 | August 21, 2021 04:00 | 3d 7h | 688 | 2,756 |
| 6 | April 24, 2021 07:00 | April 26, 2021 19:00 | 2d 12h | 680 | 14K |
| 7 | February 16, 2021 08:45 | February 17, 2021 05:00 | 20h 15m | 635 | 3,505 |
| 8 | May 19, 2021 23:15 | May 20, 2021 06:30 | 7h 15m | 620 | 2,316 |
| 9 | December 6, 2021 12:45 | December 6, 2021 15:00 | 2h 15m | 557 | 868 |
| 10 | March 23, 2021 15:15 | March 23, 2021 17:45 | 2h 30m | 524 | 920 |
Outage episodes by size in 2021: 31 reached 100+ customers, 3 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 Ouachita 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 |
| Ouachita Electric Coop Corp | - | - | - | - | - |
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 ÷ 13,315 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. Ouachita County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ouachita 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/ouachita-county