County annual report · FIPS 28097
2017 Montgomery County, MS Power Outage Report
In 2017, customers in Montgomery County, MS went without power for an average of 15.4 hours, a total of 66K customer-hours (Mississippi average 6.6 hours). That ranks 14th worst of 77 Mississippi counties and 360th of 2,786 nationally.
Compared with MS, the US and 2016
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Montgomery County, 2017
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 30, 2017 15:15 | May 4, 2017 23:45 | 4d 8h | 1,551 | 54K |
| 2 | July 6, 2017 02:30 | July 6, 2017 04:00 | 1h 30m | 963 | 739 |
| 3 | March 30, 2017 10:15 | March 31, 2017 05:45 | 19h 30m | 808 | 1,522 |
| 4 | June 9, 2017 20:00 | June 9, 2017 22:15 | 2h 15m | 802 | 847 |
| 5 | July 17, 2017 13:15 | July 17, 2017 14:00 | 45m | 542 | 407 |
| 6 | September 1, 2017 01:00 | September 2, 2017 02:15 | 1d 1h | 183 | 2,874 |
| 7 | July 5, 2017 05:00 | July 5, 2017 08:45 | 3h 45m | 109 | 64 |
| 8 | March 27, 2017 14:15 | March 27, 2017 15:00 | 45m | 104 | 54 |
| 9 | May 5, 2017 15:15 | May 6, 2017 03:15 | 12h | 103 | 141 |
| 10 | April 3, 2017 10:00 | April 4, 2017 04:45 | 18h 45m | 93 | 632 |
Outage episodes by size in 2017: 9 reached 100+ customers, 1 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 2017, 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 | 2017 | 10.6 hrs | 2.34 | 3.2 hrs | 1.42 |
| Delta Electric Power Assn | 2017 | 32.3 hrs | 4.72 | 6.7 hrs | 3.85 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Mississippi's customers in 2017; 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, 2017, 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/2017/mississippi/montgomery-county