County annual report · FIPS 28131
2021 Stone County, MS Power Outage Report
In 2021, customers in Stone County, MS went without power for an average of 5.8 hours, a total of 44K customer-hours (Mississippi average 17.2 hours). That ranks 49th worst of 78 Mississippi counties and 1177th 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 Stone 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 | June 11, 2021 22:45 | June 12, 2021 01:45 | 3h | 1,804 | 906 |
| 2 | April 13, 2021 21:30 | April 14, 2021 01:00 | 3h 30m | 1,454 | 1,401 |
| 3 | April 24, 2021 07:00 | April 25, 2021 00:15 | 17h 15m | 1,351 | 9,913 |
| 4 | August 27, 2021 20:30 | October 1, 2021 18:30 | 34d 22h | 1,191 | 14K |
| 5 | March 14, 2021 10:45 | March 14, 2021 12:45 | 2h | 1,110 | 1,111 |
| 6 | June 13, 2021 22:45 | June 14, 2021 04:15 | 5h 30m | 986 | 1,487 |
| 7 | June 6, 2021 12:00 | June 6, 2021 14:15 | 2h 15m | 686 | 1,209 |
| 8 | February 2, 2021 00:45 | February 2, 2021 04:45 | 4h | 613 | 1,802 |
| 9 | June 19, 2021 04:00 | June 19, 2021 16:00 | 12h | 459 | 838 |
| 10 | February 16, 2021 02:00 | February 16, 2021 03:45 | 1h 45m | 418 | 419 |
Outage episodes by size in 2021: 30 reached 100+ customers, 5 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 Stone 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 |
| Singing River Elec Cooperative | 2021 | 3.8 hrs | - | 2.5 hrs | - |
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 ÷ 7,460 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. Stone County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Stone 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/stone-county