County annual report · FIPS 28045
2021 Hancock County, MS Power Outage Report
In 2021, customers in Hancock County, MS went without power for an average of 8.2 hours, a total of 201K customer-hours (Mississippi average 17.2 hours). That ranks 41st worst of 78 Mississippi counties and 920th 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 Hancock 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 | August 29, 2021 11:30 | September 1, 2021 23:15 | 3d 11h | 7,642 | 150K |
| 2 | March 4, 2021 14:00 | March 4, 2021 14:15 | 15m | 3,463 | 866 |
| 3 | February 4, 2021 23:45 | February 5, 2021 00:45 | 1h | 2,208 | 1,806 |
| 4 | October 6, 2021 13:45 | October 6, 2021 19:00 | 5h 15m | 1,527 | 484 |
| 5 | May 4, 2021 12:00 | May 4, 2021 12:45 | 45m | 1,511 | 1,133 |
| 6 | May 5, 2021 03:30 | May 5, 2021 22:30 | 19h | 1,364 | 3,208 |
| 7 | April 13, 2021 22:45 | April 14, 2021 04:15 | 5h 30m | 1,223 | 1,505 |
| 8 | May 13, 2021 13:15 | May 13, 2021 18:30 | 5h 15m | 1,147 | 914 |
| 9 | August 25, 2021 13:15 | August 25, 2021 17:30 | 4h 15m | 1,118 | 885 |
| 10 | September 28, 2021 12:45 | September 28, 2021 21:45 | 9h | 1,064 | 763 |
Outage episodes by size in 2021: 77 reached 100+ customers, 11 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 Hancock 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 |
|---|---|---|---|---|---|
| Mississippi Power Co | 2021 | 5.9 hrs | 1.65 | 82 min | 1.01 |
| Coast Electric Power Assn - (MS) | 2021 | 13.4 hrs | 2.70 | 2.0 hrs | 1.84 |
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 ÷ 24,430 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. Hancock County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hancock 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/hancock-county