County annual report · FIPS 28097
2020 Montgomery County, MS Power Outage Report
In 2020, customers in Montgomery County, MS went without power for an average of 23.0 hours, a total of 98K customer-hours (Mississippi average 18.5 hours). That ranks 25th worst of 79 Mississippi counties and 373rd 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 Montgomery 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 | April 13, 2020 03:30 | April 16, 2020 17:15 | 3d 13h | 2,569 | 69K |
| 2 | July 4, 2020 23:30 | July 5, 2020 05:15 | 5h 45m | 1,417 | 4,564 |
| 3 | June 5, 2020 21:00 | June 7, 2020 00:15 | 1d 3h | 1,252 | 6,180 |
| 4 | May 31, 2020 11:30 | May 31, 2020 13:00 | 1h 30m | 800 | 1,001 |
| 5 | August 24, 2020 15:15 | August 24, 2020 22:00 | 6h 45m | 788 | 1,035 |
| 6 | October 10, 2020 09:15 | October 11, 2020 04:30 | 19h 15m | 654 | 4,522 |
| 7 | June 4, 2020 07:30 | June 4, 2020 12:30 | 5h | 535 | 2,675 |
| 8 | May 27, 2020 21:15 | May 28, 2020 05:30 | 8h 15m | 170 | 1,002 |
| 9 | November 25, 2020 12:15 | November 25, 2020 15:30 | 3h 15m | 117 | 288 |
| 10 | April 8, 2020 19:00 | April 9, 2020 01:00 | 6h | 105 | 571 |
Outage episodes by size in 2020: 10 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 Montgomery 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 |
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 ÷ 4,275 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. Montgomery County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montgomery 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/montgomery-county