County annual report · FIPS 28109
2021 Pearl River County, MS Power Outage Report
In 2021, customers in Pearl River County, MS went without power for an average of 25.3 hours, a total of 734K customer-hours (Mississippi average 17.2 hours). That ranks 25th worst of 78 Mississippi counties and 338th 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 Pearl River 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 | August 29, 2021 16:00 | September 1, 2021 22:30 | 3d 6h | 20,988 | 613K |
| 2 | November 8, 2021 18:00 | November 8, 2021 20:15 | 2h 15m | 5,890 | 2,228 |
| 3 | April 10, 2021 06:30 | April 11, 2021 00:00 | 17h 30m | 4,781 | 12K |
| 4 | April 24, 2021 08:00 | April 25, 2021 00:15 | 16h 15m | 4,077 | 18K |
| 5 | September 15, 2021 19:45 | September 15, 2021 21:30 | 1h 45m | 2,069 | 1,905 |
| 6 | June 13, 2021 20:15 | June 14, 2021 21:00 | 1d | 1,773 | 7,253 |
| 7 | January 28, 2021 14:45 | January 28, 2021 22:30 | 7h 45m | 1,713 | 839 |
| 8 | September 2, 2021 01:15 | September 2, 2021 05:00 | 3h 45m | 1,567 | 1,595 |
| 9 | June 1, 2021 21:45 | June 2, 2021 07:15 | 9h 30m | 1,562 | 2,032 |
| 10 | April 7, 2021 16:15 | April 7, 2021 22:00 | 5h 45m | 1,501 | 505 |
Outage episodes by size in 2021: 107 reached 100+ customers, 17 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 Pearl River 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 |
|---|---|---|---|---|---|
| Mississippi Power Co | 2021 | 5.9 hrs | 1.65 | 82 min | 1.01 |
| Pearl River Valley El Pwr Assn | 2021 | 6.8 hrs | 2.45 | 2.5 hrs | 1.80 |
| Coast Electric Power Assn - (MS) | 2021 | 13.4 hrs | 2.70 | 2.0 hrs | 1.84 |
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 ÷ 28,954 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. Pearl River County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Pearl River 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/pearl-river-county