County annual report · FIPS 28021
2021 Claiborne County, MS Power Outage Report
In 2021, customers in Claiborne County, MS went without power for an average of 143.4 hours, a total of 855K customer-hours (Mississippi average 17.2 hours). That ranks 2nd worst of 78 Mississippi counties and 44th 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 Claiborne 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 | February 17, 2021 19:45 | April 13, 2021 21:30 | 55d 1h | 4,749 | 621K |
| 2 | April 19, 2021 15:00 | July 12, 2021 21:15 | 84d 6h | 3,828 | 126K |
| 3 | August 27, 2021 20:15 | September 3, 2021 15:45 | 6d 19h | 3,359 | 65K |
| 4 | July 14, 2021 23:00 | August 27, 2021 03:00 | 43d 4h | 746 | 18K |
| 5 | September 29, 2021 22:00 | September 29, 2021 23:00 | 1h | 733 | 551 |
| 6 | January 7, 2021 05:15 | January 7, 2021 16:15 | 11h | 699 | 999 |
| 7 | September 6, 2021 16:15 | September 10, 2021 19:30 | 4d 3h | 666 | 3,905 |
| 8 | April 18, 2021 11:45 | April 18, 2021 13:15 | 1h 30m | 665 | 998 |
| 9 | October 9, 2021 00:00 | October 9, 2021 06:15 | 6h 15m | 651 | 1,174 |
| 10 | January 11, 2021 04:15 | January 11, 2021 09:15 | 5h | 545 | 710 |
Outage episodes by size in 2021: 29 reached 100+ customers, 3 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 Claiborne 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 |
| Southwest Mississippi E P A | 2021 | 108.4 hrs | - | 20.5 hrs | - |
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 ÷ 5,967 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. Claiborne County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Claiborne 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/claiborne-county