County annual report · FIPS 28073
2021 Lamar County, MS Power Outage Report
In 2021, customers in Lamar County, MS went without power for an average of 3.0 hours, a total of 92K customer-hours (Mississippi average 17.2 hours). That ranks 62nd worst of 78 Mississippi counties and 1854th 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 Lamar 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 17:15 | August 31, 2021 01:30 | 1d 8h | 3,507 | 21K |
| 2 | April 10, 2021 06:00 | April 11, 2021 15:00 | 1d 9h | 2,575 | 17K |
| 3 | December 18, 2021 22:45 | December 19, 2021 01:15 | 2h 30m | 2,068 | 4,651 |
| 4 | February 15, 2021 14:45 | February 17, 2021 21:15 | 2d 6h | 1,468 | 7,718 |
| 5 | July 27, 2021 01:00 | July 27, 2021 12:45 | 11h 45m | 1,410 | 2,682 |
| 6 | March 21, 2021 04:30 | March 21, 2021 09:15 | 4h 45m | 1,355 | 2,384 |
| 7 | June 29, 2021 16:15 | June 29, 2021 21:15 | 5h | 1,083 | 307 |
| 8 | June 5, 2021 05:15 | June 5, 2021 05:30 | 15m | 1,073 | 268 |
| 9 | April 13, 2021 19:45 | April 13, 2021 22:00 | 2h 15m | 1,028 | 953 |
| 10 | March 17, 2021 22:30 | March 19, 2021 02:00 | 1d 3h | 983 | 4,578 |
Outage episodes by size in 2021: 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 Lamar 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 |
| Pearl River Valley El Pwr Assn | 2021 | 6.8 hrs | 2.45 | 2.5 hrs | 1.80 |
| 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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 31,120 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. Lamar County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lamar 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/lamar-county