County annual report · FIPS 05139
2018 Union County, AR Power Outage Report
In 2018, customers in Union County, AR went without power for an average of 12.2 hours, a total of 243K customer-hours (Arkansas average 4.4 hours). That ranks 9th worst of 74 Arkansas counties and 455th of 2,798 nationally.
Compared with AR, the US and 2017
Coverage line is EAGLE-I's share of Arkansas customers tracked each year.
Biggest outages in Union County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 14, 2018 11:15 | December 15, 2018 06:15 | 19h | 3,783 | 29K |
| 2 | December 15, 2018 07:30 | December 15, 2018 09:45 | 2h 15m | 3,783 | 6,620 |
| 3 | March 11, 2018 09:45 | May 14, 2018 21:30 | 64d 11h | 1,823 | 103K |
| 4 | June 13, 2018 17:15 | June 15, 2018 04:00 | 1d 10h | 1,480 | 9,940 |
| 5 | August 20, 2018 18:45 | August 22, 2018 02:45 | 1d 8h | 1,305 | 6,845 |
| 6 | August 17, 2018 17:45 | August 18, 2018 11:00 | 17h 15m | 1,270 | 3,448 |
| 7 | June 10, 2018 21:30 | June 11, 2018 03:30 | 6h | 1,048 | 3,260 |
| 8 | July 6, 2018 00:30 | July 6, 2018 09:15 | 8h 45m | 1,029 | 2,703 |
| 9 | August 11, 2018 21:45 | August 12, 2018 07:00 | 9h 15m | 911 | 1,163 |
| 10 | October 24, 2018 17:45 | October 24, 2018 20:15 | 2h 30m | 820 | 1,829 |
Outage episodes by size in 2018: 71 reached 100+ customers, 8 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 Union County reported on EIA Form 861 for 2018, 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 | 2018 | 7.5 hrs | 1.93 | 5.0 hrs | 1.74 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 78% of Arkansas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,892 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union County, AR annual power outage report, 2018, 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/2018/arkansas/union-county