County annual report · FIPS 28127
2017 Simpson County, MS Power Outage Report
In 2017, customers in Simpson County, MS went without power for an average of 16.7 hours, a total of 264K customer-hours (Mississippi average 6.6 hours). That ranks 13th worst of 77 Mississippi counties and 332nd 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 Simpson 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 06:45 | December 10, 2017 04:45 | 1d 22h | 10,727 | 96K |
| 2 | June 17, 2017 01:45 | June 19, 2017 21:15 | 2d 19h | 4,556 | 81K |
| 3 | January 2, 2017 19:15 | January 5, 2017 00:45 | 2d 5h | 1,281 | 13K |
| 4 | March 30, 2017 17:15 | March 30, 2017 20:15 | 3h | 1,270 | 1,488 |
| 5 | September 1, 2017 20:30 | September 1, 2017 21:15 | 45m | 1,152 | 579 |
| 6 | January 22, 2017 13:00 | January 22, 2017 18:15 | 5h 15m | 1,048 | 2,429 |
| 7 | April 3, 2017 01:45 | April 3, 2017 23:45 | 22h | 1,041 | 4,439 |
| 8 | July 8, 2017 15:30 | July 8, 2017 19:15 | 3h 45m | 922 | 1,312 |
| 9 | April 30, 2017 06:30 | April 30, 2017 19:00 | 12h 30m | 777 | 4,891 |
| 10 | November 19, 2017 01:00 | November 19, 2017 09:30 | 8h 30m | 726 | 1,746 |
Outage episodes by size in 2017: 65 reached 100+ customers, 7 reached 1,000+ customers, 1 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 Simpson 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 |
| 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 ÷ 15,818 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. Simpson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Simpson 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/simpson-county