County annual report · FIPS 28001
2020 Adams County, MS Power Outage Report
In 2020, customers in Adams County, MS went without power for an average of 42.4 hours, a total of 736K customer-hours (Mississippi average 18.5 hours). That ranks 15th worst of 79 Mississippi counties and 190th 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 Adams 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 9, 2020 22:45 | November 18, 2020 00:30 | 39d 1h | 10,574 | 502K |
| 2 | August 27, 2020 08:45 | September 1, 2020 00:45 | 4d 16h | 5,083 | 65K |
| 3 | November 21, 2020 09:15 | November 21, 2020 12:00 | 2h 45m | 4,454 | 11K |
| 4 | May 14, 2020 20:00 | May 14, 2020 23:15 | 3h 15m | 1,703 | 2,094 |
| 5 | August 24, 2020 18:45 | August 24, 2020 23:00 | 4h 15m | 1,486 | 4,307 |
| 6 | March 22, 2020 10:30 | March 22, 2020 20:30 | 10h | 1,430 | 5,025 |
| 7 | June 30, 2020 16:00 | August 10, 2020 18:30 | 41d 2h | 1,372 | 15K |
| 8 | April 10, 2020 01:45 | April 10, 2020 07:00 | 5h 15m | 1,257 | 3,770 |
| 9 | December 12, 2020 18:15 | December 14, 2020 23:15 | 2d 5h | 1,181 | 2,241 |
| 10 | August 10, 2020 20:15 | August 10, 2020 23:15 | 3h | 1,114 | 347 |
Outage episodes by size in 2020: 57 reached 100+ customers, 11 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 Adams 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 |
| Southwest Mississippi E P A | 2020 | 80.2 hrs | - | 22.6 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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 17,358 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams 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/adams-county