County annual report · FIPS 28075
2021 Lauderdale County, MS Power Outage Report
In 2021, customers in Lauderdale County, MS went without power for an average of 38.1 hours, a total of 1.1M customer-hours (Mississippi average 17.2 hours). That ranks 18th worst of 78 Mississippi counties and 231st 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 Lauderdale 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 | May 4, 2021 13:45 | May 8, 2021 02:30 | 3d 12h | 33,939 | 379K |
| 2 | February 15, 2021 14:45 | February 23, 2021 04:15 | 7d 13h | 18,997 | 475K |
| 3 | June 13, 2021 19:45 | June 16, 2021 13:30 | 2d 17h | 15,594 | 182K |
| 4 | April 24, 2021 13:15 | April 25, 2021 10:30 | 21h 15m | 2,924 | 3,441 |
| 5 | May 20, 2021 15:15 | May 21, 2021 03:15 | 12h | 2,750 | 1,641 |
| 6 | August 30, 2021 10:00 | August 31, 2021 03:15 | 17h 15m | 2,728 | 7,864 |
| 7 | December 12, 2021 05:45 | December 12, 2021 08:45 | 3h | 2,422 | 7,018 |
| 8 | September 1, 2021 22:15 | September 2, 2021 07:30 | 9h 15m | 2,058 | 3,676 |
| 9 | January 28, 2021 04:45 | January 28, 2021 09:45 | 5h | 1,615 | 1,108 |
| 10 | March 17, 2021 16:45 | March 18, 2021 05:45 | 13h | 1,549 | 4,822 |
Outage episodes by size in 2021: 100 reached 100+ customers, 16 reached 1,000+ customers, 3 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 Lauderdale 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 |
| East Mississippi Elec Pwr Assn | 2021 | 58 min | 3.40 | 3 min | 1.53 |
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 ÷ 30,152 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. Lauderdale County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lauderdale 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/lauderdale-county