County annual report · FIPS 28151
2019 Washington County, MS Power Outage Report
In 2019, customers in Washington County, MS went without power for an average of 7.5 hours, a total of 189K customer-hours (Mississippi average 5.8 hours). That ranks 31st worst of 78 Mississippi counties and 747th of 2,945 nationally.
Compared with MS, the US and 2018
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Washington County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 8, 2019 23:15 | September 9, 2019 05:45 | 6h 30m | 2,703 | 1,992 |
| 2 | April 7, 2019 11:45 | July 8, 2019 02:15 | 91d 14h | 1,739 | 107K |
| 3 | October 7, 2019 04:45 | October 8, 2019 06:30 | 1d 1h | 1,367 | 3,985 |
| 4 | September 14, 2019 17:30 | September 15, 2019 03:30 | 10h | 897 | 2,543 |
| 5 | July 8, 2019 04:00 | September 4, 2019 23:00 | 58d 19h | 785 | 28K |
| 6 | March 6, 2019 20:45 | April 7, 2019 10:00 | 31d 13h | 723 | 12K |
| 7 | October 5, 2019 09:30 | October 5, 2019 12:00 | 2h 30m | 648 | 1,436 |
| 8 | November 11, 2019 16:15 | November 12, 2019 16:00 | 23h 45m | 583 | 3,793 |
| 9 | January 23, 2019 11:15 | January 23, 2019 16:45 | 5h 30m | 562 | 814 |
| 10 | September 16, 2019 14:15 | September 17, 2019 02:30 | 12h 15m | 551 | 2,537 |
Outage episodes by size in 2019: 28 reached 100+ customers, 3 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 2019, 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 | 2018 | 5.3 hrs | 1.81 | 4.2 hrs | 1.64 |
| Delta Electric Power Assn | 2018 | 10.2 hrs | 5.14 | 6.7 hrs | 4.58 |
| 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 74% of Mississippi's customers in 2019; 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, 2019, 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/2019/mississippi/washington-county