County annual report · FIPS 05071
2020 Johnson County, AR Power Outage Report
In 2020, customers in Johnson County, AR went without power for an average of 2.6 hours, a total of 48K customer-hours (Arkansas average 10.5 hours). That ranks 62nd worst of 75 Arkansas counties and 2023rd of 3,019 nationally.
Compared with AR, the US and 2019
Coverage line is EAGLE-I's share of Arkansas customers tracked each year.
Biggest outages in Johnson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 22, 2020 10:15 | September 22, 2020 10:45 | 30m | 2,369 | 593 |
| 2 | September 25, 2020 09:45 | September 25, 2020 10:45 | 1h | 2,369 | 2,369 |
| 3 | January 22, 2020 23:00 | January 24, 2020 16:30 | 1d 17h | 926 | 17K |
| 4 | May 17, 2020 07:00 | May 17, 2020 11:30 | 4h 30m | 724 | 3,258 |
| 5 | September 13, 2020 22:45 | September 14, 2020 06:45 | 8h | 711 | 5,684 |
| 6 | October 28, 2020 21:45 | October 29, 2020 01:15 | 3h 30m | 711 | 1,068 |
| 7 | February 5, 2020 12:30 | February 5, 2020 16:45 | 4h 15m | 595 | 1,533 |
| 8 | July 21, 2020 16:00 | July 21, 2020 16:30 | 30m | 504 | 252 |
| 9 | January 11, 2020 00:45 | January 11, 2020 12:15 | 11h 30m | 427 | 2,887 |
| 10 | April 12, 2020 23:45 | April 13, 2020 17:00 | 17h 15m | 349 | 2,668 |
Outage episodes by size in 2020: 28 reached 100+ customers, 2 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 Johnson County reported on EIA Form 861 for 2020, 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 | 2020 | 19.8 hrs | 2.10 | 4.5 hrs | 1.52 |
| Arkansas Valley Elec Coop Corp | 2020 | 8.0 hrs | 3.29 | 5.3 hrs | 2.79 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Clarksville Connected Utilities | - | - | - | - | - |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,727 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. Johnson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnson County, AR annual power outage report, 2020, 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/2020/arkansas/johnson-county