County annual report · FIPS 28097
2015 Montgomery County, MS Power Outage Report
In 2015, customers in Montgomery County, MS went without power for an average of 9.5 hours, a total of 41K customer-hours (Mississippi average 2.6 hours). That ranks 6th worst of 70 Mississippi counties and 276th of 2,484 nationally.
Compared with MS, the US
Coverage line is EAGLE-I's share of Mississippi customers tracked each year.
Biggest outages in Montgomery County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 25, 2015 20:15 | February 28, 2015 01:30 | 2d 5h | 1,762 | 30K |
| 2 | March 5, 2015 08:00 | March 5, 2015 14:15 | 6h 15m | 840 | 3,789 |
| 3 | June 6, 2015 19:45 | June 6, 2015 23:00 | 3h 15m | 806 | 1,214 |
| 4 | October 2, 2015 17:15 | October 2, 2015 18:45 | 1h 30m | 805 | 1,208 |
| 5 | June 11, 2015 02:30 | June 11, 2015 05:45 | 3h 15m | 149 | 445 |
| 6 | July 15, 2015 17:30 | July 15, 2015 18:30 | 1h | 134 | 101 |
| 7 | November 17, 2015 19:00 | November 17, 2015 20:30 | 1h 30m | 121 | 122 |
| 8 | October 29, 2015 23:00 | October 30, 2015 02:15 | 3h 15m | 112 | 340 |
| 9 | October 26, 2015 12:45 | October 27, 2015 15:00 | 1d 2h | 111 | 262 |
| 10 | May 25, 2015 22:15 | May 26, 2015 01:45 | 3h 30m | 109 | 381 |
Outage episodes by size in 2015: 11 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 2015, 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 | 2015 | 6.1 hrs | 2.02 | 4.2 hrs | 1.71 |
| Delta Electric Power Assn | 2015 | 15.6 hrs | 4.09 | 5.9 hrs | 3.47 |
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 2015; 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, 2015, 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/2015/mississippi/montgomery-county