County annual report · FIPS 28127
2020 Simpson County, MS Power Outage Report
In 2020, customers in Simpson County, MS went without power for an average of 11.5 hours, a total of 182K customer-hours (Mississippi average 18.5 hours). That ranks 40th worst of 79 Mississippi counties and 689th of 3,019 nationally.
Compared with MS, the US and 2019
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Simpson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 23, 2020 03:45 | April 25, 2020 23:45 | 2d 20h | 5,638 | 62K |
| 2 | October 10, 2020 01:00 | October 11, 2020 18:30 | 1d 17h | 3,162 | 27K |
| 3 | June 6, 2020 00:15 | June 6, 2020 22:30 | 22h 15m | 2,795 | 11K |
| 4 | November 11, 2020 22:15 | November 11, 2020 22:45 | 30m | 2,421 | 1,211 |
| 5 | April 28, 2020 23:30 | April 29, 2020 21:15 | 21h 45m | 1,858 | 6,885 |
| 6 | July 8, 2020 16:30 | July 8, 2020 19:30 | 3h | 1,503 | 441 |
| 7 | August 17, 2020 23:00 | August 18, 2020 02:30 | 3h 30m | 1,196 | 609 |
| 8 | June 8, 2020 00:30 | June 9, 2020 18:45 | 1d 18h | 1,103 | 10K |
| 9 | January 11, 2020 06:00 | January 12, 2020 04:45 | 22h 45m | 1,021 | 5,980 |
| 10 | March 4, 2020 10:15 | March 5, 2020 20:30 | 1d 10h | 938 | 5,409 |
Outage episodes by size in 2020: 68 reached 100+ customers, 9 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 2020, 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 | 2020 | 16.7 hrs | 2.28 | 3.8 hrs | 1.38 |
| 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 77% of Mississippi's customers in 2020; 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, 2020, 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/2020/mississippi/simpson-county