County annual report · FIPS 28127
2015 Simpson County, MS Power Outage Report
In 2015, customers in Simpson County, MS went without power for an average of 3.3 hours, a total of 52K customer-hours (Mississippi average 2.6 hours). That ranks 25th worst of 70 Mississippi counties and 844th of 2,484 nationally.
Compared with MS, the US
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Simpson County, 2015
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 26, 2015 21:45 | September 26, 2015 23:30 | 1h 45m | 2,607 | 672 |
| 2 | February 24, 2015 15:30 | February 24, 2015 15:45 | 15m | 2,374 | 594 |
| 3 | October 5, 2015 14:45 | October 5, 2015 18:45 | 4h | 1,935 | 527 |
| 4 | December 16, 2015 21:00 | December 17, 2015 06:00 | 9h | 1,376 | 7,006 |
| 5 | October 25, 2015 19:30 | October 27, 2015 19:45 | 2d | 1,197 | 9,563 |
| 6 | September 25, 2015 13:30 | September 25, 2015 16:45 | 3h 15m | 1,132 | 947 |
| 7 | December 3, 2015 17:15 | December 3, 2015 20:30 | 3h 15m | 743 | 353 |
| 8 | December 22, 2015 16:30 | December 22, 2015 21:00 | 4h 30m | 587 | 2,057 |
| 9 | November 4, 2015 19:15 | November 4, 2015 21:45 | 2h 30m | 536 | 642 |
| 10 | September 24, 2015 10:00 | September 24, 2015 13:30 | 3h 30m | 449 | 574 |
Outage episodes by size in 2015: 45 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 Simpson County reported on EIA Form 861 for 2015, 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 | 2015 | 6.1 hrs | 2.02 | 4.2 hrs | 1.71 |
| 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 2015; 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, 2015, 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/2015/mississippi/simpson-county