County annual report · FIPS 05097
2021 Montgomery County, AR Power Outage Report
In 2021, customers in Montgomery County, AR went without power for an average of 21.5 hours, a total of 89K customer-hours (Arkansas average 5.4 hours). That ranks 4th worst of 75 Arkansas counties and 400th 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 Montgomery 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 | July 19, 2021 21:15 | July 19, 2021 21:30 | 15m | 4,866 | 1,217 |
| 2 | February 16, 2021 06:15 | February 17, 2021 12:30 | 1d 6h | 3,442 | 21K |
| 3 | May 4, 2021 06:15 | May 6, 2021 00:30 | 1d 18h | 1,767 | 20K |
| 4 | October 19, 2021 13:15 | October 19, 2021 18:15 | 5h | 1,543 | 7,705 |
| 5 | August 18, 2021 13:15 | August 18, 2021 16:45 | 3h 30m | 1,192 | 4,170 |
| 6 | March 23, 2021 05:45 | March 23, 2021 14:30 | 8h 45m | 1,092 | 1,420 |
| 7 | April 8, 2021 13:15 | April 9, 2021 04:15 | 15h | 808 | 662 |
| 8 | March 3, 2021 19:45 | March 3, 2021 20:30 | 45m | 803 | 602 |
| 9 | March 29, 2021 13:15 | March 30, 2021 01:45 | 12h 30m | 778 | 3,764 |
| 10 | October 18, 2021 13:15 | October 18, 2021 15:15 | 2h | 541 | 1,035 |
Outage episodes by size in 2021: 43 reached 100+ customers, 6 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 Montgomery 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 |
| South Central Ark El Coop, Inc | - | - | - | - | - |
| Rich Mountain Elec 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 86% of Arkansas's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,130 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery 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/montgomery-county