County annual report · FIPS 28051
2021 Holmes County, MS Power Outage Report
In 2021, customers in Holmes County, MS went without power for an average of 23.3 hours, a total of 154K customer-hours (Mississippi average 17.2 hours). That ranks 26th worst of 78 Mississippi counties and 364th 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 Holmes 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 23:30 | February 23, 2021 02:30 | 5d 3h | 3,169 | 98K |
| 2 | March 18, 2021 01:30 | March 19, 2021 00:00 | 22h 30m | 935 | 1,721 |
| 3 | September 1, 2021 21:45 | September 4, 2021 23:00 | 3d 1h | 828 | 13K |
| 4 | August 14, 2021 12:30 | August 14, 2021 22:30 | 10h | 745 | 2,942 |
| 5 | June 13, 2021 22:30 | June 14, 2021 23:15 | 1d | 716 | 5,440 |
| 6 | August 30, 2021 09:45 | August 31, 2021 22:30 | 1d 12h | 671 | 3,155 |
| 7 | August 16, 2021 15:00 | August 16, 2021 21:15 | 6h 15m | 560 | 1,797 |
| 8 | July 17, 2021 15:00 | July 18, 2021 00:30 | 9h 30m | 557 | 1,929 |
| 9 | July 29, 2021 14:45 | July 29, 2021 16:30 | 1h 45m | 539 | 858 |
| 10 | January 11, 2021 13:00 | January 11, 2021 19:45 | 6h 45m | 529 | 2,638 |
Outage episodes by size in 2021: 37 reached 100+ customers, 1 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 Holmes 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 |
| Delta Electric Power Assn | 2021 | 64.6 hrs | 4.93 | 7.6 hrs | 4.19 |
| Yazoo Valley Elec Power Assn | - | - | - | - | - |
| City of Durant - (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 ÷ 6,634 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. Holmes County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Holmes 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/holmes-county