County annual report · FIPS 28127
2018 Simpson County, MS Power Outage Report
In 2018, customers in Simpson County, MS went without power for an average of 4.1 hours, a total of 64K customer-hours (Mississippi average 3.0 hours). That ranks 32nd worst of 76 Mississippi counties and 1236th of 2,798 nationally.
Compared with MS, the US and 2017
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Simpson County, 2018
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 18, 2018 15:00 | September 18, 2018 18:15 | 3h 15m | 2,639 | 736 |
| 2 | April 11, 2018 22:15 | April 12, 2018 00:30 | 2h 15m | 1,888 | 2,360 |
| 3 | November 1, 2018 06:00 | November 1, 2018 17:45 | 11h 45m | 1,880 | 5,149 |
| 4 | August 18, 2018 20:00 | August 19, 2018 09:30 | 13h 30m | 1,093 | 1,542 |
| 5 | April 14, 2018 13:30 | April 14, 2018 23:30 | 10h | 1,059 | 3,025 |
| 6 | September 23, 2018 20:30 | September 24, 2018 02:15 | 5h 45m | 951 | 2,803 |
| 7 | May 24, 2018 02:15 | May 24, 2018 10:15 | 8h | 923 | 3,003 |
| 8 | April 22, 2018 14:00 | April 22, 2018 19:15 | 5h 15m | 866 | 606 |
| 9 | August 12, 2018 17:45 | August 13, 2018 05:15 | 11h 30m | 763 | 1,030 |
| 10 | July 17, 2018 23:15 | July 18, 2018 03:15 | 4h | 753 | 200 |
Outage episodes by size in 2018: 66 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 2018, 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 | 2018 | 5.3 hrs | 1.81 | 4.2 hrs | 1.64 |
| 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 66% of Mississippi's customers in 2018; 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, 2018, 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/2018/mississippi/simpson-county