County annual report · FIPS 28047
2023 Harrison County, MS Power Outage Report
In 2023, customers in Harrison County, MS went without power for an average of 1.4 hours, a total of 155K customer-hours (Mississippi average 11.1 hours). That ranks 68th worst of 79 Mississippi counties and 2511th of 2,977 nationally.
Compared with MS, the US and 2022
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Harrison County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 20, 2023 22:30 | July 21, 2023 19:45 | 21h 15m | 4,499 | 5,907 |
| 2 | July 16, 2023 13:30 | July 17, 2023 02:30 | 13h | 4,279 | 6,486 |
| 3 | September 7, 2023 15:00 | September 8, 2023 05:00 | 14h | 3,618 | 7,062 |
| 4 | October 27, 2023 10:45 | October 28, 2023 00:30 | 13h 45m | 3,088 | 2,599 |
| 5 | July 29, 2023 00:30 | July 29, 2023 06:15 | 5h 45m | 2,927 | 7,523 |
| 6 | March 27, 2023 13:15 | March 27, 2023 19:15 | 6h | 2,858 | 2,265 |
| 7 | June 20, 2023 12:00 | June 21, 2023 03:45 | 15h 45m | 2,143 | 3,816 |
| 8 | June 19, 2023 18:00 | June 20, 2023 04:45 | 10h 45m | 2,136 | 4,555 |
| 9 | January 25, 2023 05:15 | January 25, 2023 11:00 | 5h 45m | 1,687 | 2,149 |
| 10 | September 20, 2023 01:15 | October 3, 2023 22:30 | 13d 21h | 1,651 | 5,951 |
Outage episodes by size in 2023: 129 reached 100+ customers, 31 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 Harrison County reported on EIA Form 861 for 2023, 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 | 2023 | 4.1 hrs | 1.07 | 82 min | 0.96 |
| Singing River Elec Cooperative | 2023 | 2.7 hrs | - | 2.5 hrs | - |
| Coast Electric Power Assn - (MS) | 2023 | 1.8 hrs | 1.51 | 1.7 hrs | 1.51 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Mississippi's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 109,081 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. Harrison County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harrison County, MS annual power outage report, 2023, 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/2023/mississippi/harrison-county