County annual report · FIPS 28047
2018 Harrison County, MS Power Outage Report
In 2018, customers in Harrison County, MS went without power for an average of 0.6 hours, a total of 69K customer-hours (Mississippi average 3.0 hours). That ranks 64th worst of 76 Mississippi counties and 2454th of 2,798 nationally.
Compared with MS, the US and 2017
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Harrison County, 2018
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 13, 2018 16:00 | May 13, 2018 16:15 | 15m | 34,247 | 8,562 |
| 2 | June 30, 2018 21:45 | July 1, 2018 06:00 | 8h 15m | 4,948 | 4,757 |
| 3 | July 13, 2018 13:15 | July 18, 2018 23:15 | 5d 10h | 1,818 | 4,332 |
| 4 | April 14, 2018 17:45 | April 15, 2018 08:45 | 15h | 1,802 | 8,570 |
| 5 | June 5, 2018 12:00 | June 5, 2018 19:45 | 7h 45m | 1,771 | 1,973 |
| 6 | June 13, 2018 14:30 | June 13, 2018 21:45 | 7h 15m | 1,593 | 2,589 |
| 7 | July 1, 2018 23:15 | July 2, 2018 09:00 | 9h 45m | 1,381 | 3,861 |
| 8 | July 25, 2018 18:00 | July 26, 2018 01:30 | 7h 30m | 1,295 | 624 |
| 9 | August 11, 2018 15:15 | August 12, 2018 06:15 | 15h | 1,088 | 1,332 |
| 10 | September 1, 2018 14:15 | September 1, 2018 21:30 | 7h 15m | 976 | 2,171 |
Outage episodes by size in 2018: 52 reached 100+ customers, 9 reached 1,000+ customers, 1 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 2018, 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 | 2018 | 1.8 hrs | 1.10 | 73 min | 0.94 |
| Singing River Elec Cooperative | 2018 | 4.8 hrs | - | 2.4 hrs | - |
| Coast Electric Power Assn - (MS) | 2018 | 1.7 hrs | 1.37 | 46 min | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 66% of Mississippi's customers in 2018; 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, 2018, 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/2018/mississippi/harrison-county