County annual report · FIPS 28003
2021 Alcorn County, MS Power Outage Report
In 2021, customers in Alcorn County, MS went without power for an average of 0.0 hours, a total of 929 customer-hours (Mississippi average 17.2 hours). That ranks 77th worst of 78 Mississippi counties and 2935th 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 Alcorn 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 6, 2021 05:30 | May 6, 2021 06:45 | 1h 15m | 267 | 334 |
| 2 | November 17, 2021 17:30 | November 17, 2021 19:00 | 1h 30m | 126 | 166 |
| 3 | May 18, 2021 15:00 | May 18, 2021 17:45 | 2h 45m | 67 | 184 |
| 4 | May 1, 2021 18:30 | May 1, 2021 19:45 | 1h 15m | 66 | 83 |
| 5 | November 7, 2021 08:00 | November 7, 2021 11:00 | 3h | 31 | 79 |
| 6 | March 13, 2021 20:15 | March 13, 2021 23:15 | 3h | 12 | 36 |
| 7 | May 3, 2021 00:30 | May 3, 2021 02:30 | 2h | 12 | 24 |
| 8 | October 2, 2021 23:30 | October 3, 2021 00:45 | 1h 15m | 3 | 4 |
| 9 | April 8, 2021 02:45 | April 8, 2021 04:00 | 1h 15m | 2 | 3 |
| 10 | August 31, 2021 03:00 | August 31, 2021 06:15 | 3h 15m | 2 | 7 |
Outage episodes by size in 2021: 2 reached 100+ customers, 0 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 Alcorn 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 |
|---|---|---|---|---|---|
| Alcorn County Elec Power Assn | 2021 | 65 min | 0.88 | 65 min | 0.88 |
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 ÷ 19,940 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. Alcorn County has data for 2019–2025.
Cite this report
MassOutage (massoutage.com), Alcorn 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/alcorn-county