County annual report · FIPS 28151
2020 Washington County, MS Power Outage Report
In 2020, customers in Washington County, MS went without power for an average of 10.2 hours, a total of 255K customer-hours (Mississippi average 18.5 hours). That ranks 43rd worst of 79 Mississippi counties and 778th 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 Washington 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 | January 11, 2020 09:30 | January 18, 2020 03:15 | 6d 17h | 5,444 | 138K |
| 2 | September 23, 2020 21:30 | September 24, 2020 00:00 | 2h 30m | 2,026 | 3,330 |
| 3 | April 13, 2020 02:30 | April 15, 2020 01:30 | 1d 23h | 1,989 | 39K |
| 4 | November 18, 2020 13:15 | November 18, 2020 22:45 | 9h 30m | 1,386 | 402 |
| 5 | July 21, 2020 13:30 | July 21, 2020 22:30 | 9h | 1,065 | 1,578 |
| 6 | October 10, 2020 06:15 | October 11, 2020 01:30 | 19h 15m | 977 | 7,775 |
| 7 | November 12, 2020 17:30 | November 13, 2020 02:45 | 9h 15m | 916 | 687 |
| 8 | June 5, 2020 17:45 | June 6, 2020 22:00 | 1d 4h | 807 | 4,388 |
| 9 | August 27, 2020 16:30 | August 30, 2020 00:00 | 2d 7h | 652 | 6,533 |
| 10 | April 25, 2020 08:15 | April 25, 2020 12:00 | 3h 45m | 586 | 1,613 |
Outage episodes by size in 2020: 47 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 Washington 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 |
|---|---|---|---|---|---|
| Entergy Mississippi LLC | 2020 | 16.7 hrs | 2.28 | 3.8 hrs | 1.38 |
| Delta Electric Power Assn | 2020 | 26.6 hrs | 5.63 | 6.3 hrs | 3.79 |
| Twin County Electric Pwr Assn | 2018 | 8.2 hrs | - | 4.2 hrs | - |
| City of Leland - (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 ÷ 25,115 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington 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/washington-county