County annual report · FIPS 28023
2021 Clarke County, MS Power Outage Report
In 2021, customers in Clarke County, MS went without power for an average of 9.0 hours, a total of 64K customer-hours (Mississippi average 17.2 hours). That ranks 40th worst of 78 Mississippi counties and 848th 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 Clarke 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 | September 2, 2021 06:30 | September 2, 2021 08:00 | 1h 30m | 2,622 | 3,933 |
| 2 | June 13, 2021 21:00 | June 15, 2021 01:30 | 1d 4h | 1,796 | 15K |
| 3 | August 15, 2021 02:45 | August 15, 2021 07:45 | 5h | 1,743 | 5,102 |
| 4 | September 16, 2021 15:45 | September 30, 2021 13:45 | 13d 22h | 1,166 | 3,895 |
| 5 | October 5, 2021 05:15 | October 5, 2021 09:30 | 4h 15m | 1,165 | 4,948 |
| 6 | July 16, 2021 01:30 | July 16, 2021 06:45 | 5h 15m | 1,139 | 3,453 |
| 7 | March 11, 2021 03:15 | March 11, 2021 06:15 | 3h | 1,118 | 564 |
| 8 | May 4, 2021 21:00 | May 7, 2021 03:30 | 2d 6h | 1,090 | 8,323 |
| 9 | October 30, 2021 16:45 | October 30, 2021 18:45 | 2h | 945 | 373 |
| 10 | April 10, 2021 05:45 | April 10, 2021 17:45 | 12h | 728 | 1,389 |
Outage episodes by size in 2021: 42 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 Clarke 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 |
| Southern Pine Electric Cooperative | - | - | - | - | - |
| Dixie Electric Power Assn - (MS) | - | - | - | - | - |
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 ÷ 7,062 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. Clarke County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clarke 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/clarke-county