County annual report · FIPS 28127
2023 Simpson County, MS Power Outage Report
In 2023, customers in Simpson County, MS went without power for an average of 30.9 hours, a total of 489K customer-hours (Mississippi average 11.1 hours). That ranks 11th worst of 79 Mississippi counties and 226th of 2,977 nationally.
Compared with MS, the US and 2022
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Simpson County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 16, 2023 10:30 | June 23, 2023 01:00 | 6d 14h | 8,287 | 358K |
| 2 | June 26, 2023 04:30 | June 28, 2023 22:00 | 2d 17h | 3,617 | 47K |
| 3 | November 20, 2023 22:30 | November 22, 2023 02:45 | 1d 4h | 1,619 | 8,094 |
| 4 | June 28, 2023 23:15 | June 29, 2023 20:30 | 21h 15m | 1,097 | 4,468 |
| 5 | July 25, 2023 17:45 | July 25, 2023 22:45 | 5h | 1,001 | 1,268 |
| 6 | December 1, 2023 07:30 | December 1, 2023 10:00 | 2h 30m | 955 | 1,436 |
| 7 | August 26, 2023 02:45 | August 26, 2023 03:15 | 30m | 785 | 199 |
| 8 | November 11, 2023 09:45 | November 11, 2023 22:00 | 12h 15m | 645 | 6,378 |
| 9 | August 28, 2023 03:30 | August 28, 2023 06:45 | 3h 15m | 624 | 1,029 |
| 10 | February 22, 2023 15:00 | February 22, 2023 20:45 | 5h 45m | 580 | 1,036 |
Outage episodes by size in 2023: 61 reached 100+ customers, 5 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 2023, 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 | 2023 | 20.0 hrs | 2.14 | 4.9 hrs | 1.52 |
| Southern Pine Electric Cooperative | 2023 | 27.1 hrs | 5.21 | 5.3 hrs | 3.21 |
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 2023; 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, 2023, 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/2023/mississippi/simpson-county