County annual report · FIPS 28065
2017 Jefferson Davis County, MS Power Outage Report
In 2017, customers in Jefferson Davis County, MS went without power for an average of 21.0 hours, a total of 115K customer-hours (Mississippi average 6.6 hours). That ranks 8th worst of 77 Mississippi counties and 261st of 2,786 nationally.
Compared with MS, the US and 2016
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Jefferson Davis County, 2017
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 8, 2017 09:45 | December 11, 2017 03:30 | 2d 17h | 5,455 | 63K |
| 2 | June 17, 2017 02:00 | June 18, 2017 23:45 | 1d 21h | 1,771 | 23K |
| 3 | April 3, 2017 01:45 | April 3, 2017 03:15 | 1h 30m | 1,153 | 925 |
| 4 | January 2, 2017 20:15 | January 3, 2017 23:45 | 1d 3h | 1,021 | 11K |
| 5 | May 11, 2017 15:15 | May 11, 2017 17:15 | 2h | 926 | 712 |
| 6 | May 12, 2017 06:00 | May 12, 2017 07:00 | 1h | 926 | 778 |
| 7 | May 12, 2017 19:15 | May 12, 2017 22:45 | 3h 30m | 926 | 584 |
| 8 | June 16, 2017 21:30 | June 16, 2017 22:15 | 45m | 899 | 674 |
| 9 | April 30, 2017 15:00 | April 30, 2017 20:45 | 5h 45m | 746 | 824 |
| 10 | June 4, 2017 20:00 | June 4, 2017 22:15 | 2h 15m | 681 | 543 |
Outage episodes by size in 2017: 25 reached 100+ customers, 4 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 Jefferson Davis County reported on EIA Form 861 for 2017, 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 Mississippi LLC | 2017 | 10.6 hrs | 2.34 | 3.2 hrs | 1.42 |
| Mississippi Power Co | 2017 | 4.0 hrs | 1.30 | 78 min | 0.93 |
| Pearl River Valley El Pwr Assn | 2017 | 11.3 hrs | 3.14 | 3.5 hrs | 2.30 |
| Southern Pine Electric Cooperative | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Mississippi's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,468 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. Jefferson Davis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson Davis County, MS annual power outage report, 2017, 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/2017/mississippi/jefferson-davis-county