County annual report · FIPS 28111
2020 Perry County, MS Power Outage Report
In 2020, customers in Perry County, MS went without power for an average of 36.8 hours, a total of 177K customer-hours (Mississippi average 18.5 hours). That ranks 16th worst of 79 Mississippi counties and 220th of 3,019 nationally.
Compared with MS, the US and 2019
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Perry County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 28, 2020 22:45 | November 8, 2020 22:30 | 10d 23h | 4,597 | 132K |
| 2 | April 20, 2020 01:30 | April 20, 2020 23:30 | 22h | 2,984 | 18K |
| 3 | October 27, 2020 13:30 | October 27, 2020 13:45 | 15m | 1,546 | 387 |
| 4 | April 12, 2020 14:45 | April 15, 2020 02:30 | 2d 11h | 1,038 | 2,669 |
| 5 | August 29, 2020 12:00 | August 29, 2020 13:00 | 1h | 778 | 777 |
| 6 | November 21, 2020 05:45 | November 21, 2020 14:15 | 8h 30m | 671 | 5,356 |
| 7 | July 8, 2020 19:45 | July 8, 2020 22:15 | 2h 30m | 512 | 312 |
| 8 | August 18, 2020 15:45 | August 18, 2020 16:30 | 45m | 503 | 294 |
| 9 | June 8, 2020 01:00 | June 8, 2020 16:45 | 15h 45m | 467 | 857 |
| 10 | September 11, 2020 21:00 | September 11, 2020 23:00 | 2h | 447 | 780 |
Outage episodes by size in 2020: 42 reached 100+ customers, 4 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 Perry County reported on EIA Form 861 for 2020, 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 | 2020 | 29.7 hrs | 1.95 | 87 min | 0.95 |
| Pearl River Valley El Pwr Assn | 2020 | 15.8 hrs | 2.79 | 3.3 hrs | 1.98 |
| Singing River Elec Cooperative | 2020 | 70.0 hrs | - | 2.8 hrs | - |
| Dixie Electric Power Assn - (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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,806 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. Perry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Perry County, MS annual power outage report, 2020, 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/2020/mississippi/perry-county