County annual report · FIPS 28133
2021 Sunflower County, MS Power Outage Report
In 2021, customers in Sunflower County, MS went without power for an average of 9.3 hours, a total of 111K customer-hours (Mississippi average 17.2 hours). That ranks 39th worst of 78 Mississippi counties and 825th of 2,974 nationally.
Compared with MS, the US and 2020
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Sunflower County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 16, 2021 13:45 | March 16, 2021 18:45 | 5h | 2,821 | 723 |
| 2 | August 14, 2021 23:15 | August 15, 2021 21:15 | 22h | 1,992 | 6,787 |
| 3 | August 12, 2021 19:30 | August 13, 2021 17:15 | 21h 45m | 1,817 | 37K |
| 4 | May 26, 2021 19:45 | May 27, 2021 10:15 | 14h 30m | 1,468 | 3,525 |
| 5 | December 3, 2021 21:15 | December 3, 2021 21:30 | 15m | 1,314 | 329 |
| 6 | September 3, 2021 01:30 | September 3, 2021 01:45 | 15m | 1,262 | 316 |
| 7 | September 3, 2021 20:15 | September 3, 2021 20:30 | 15m | 1,262 | 316 |
| 8 | July 17, 2021 02:00 | July 17, 2021 04:30 | 2h 30m | 1,038 | 262 |
| 9 | May 4, 2021 18:30 | May 6, 2021 23:45 | 2d 5h | 949 | 10K |
| 10 | December 30, 2021 06:30 | December 30, 2021 11:30 | 5h | 921 | 4,174 |
Outage episodes by size in 2021: 52 reached 100+ customers, 8 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 Sunflower County reported on EIA Form 861 for 2021, 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 | 2021 | 22.9 hrs | 2.44 | 4.7 hrs | 1.50 |
| Delta Electric Power Assn | 2021 | 64.6 hrs | 4.93 | 7.6 hrs | 4.19 |
| Twin County Electric Pwr Assn | 2018 | 8.2 hrs | - | 4.2 hrs | - |
| Coahoma Electric Power Assn | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 11,919 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. Sunflower County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sunflower County, MS annual power outage report, 2021, 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/2021/mississippi/sunflower-county