County annual report · FIPS 29139
2020 Montgomery County, MO Power Outage Report
In 2020, customers in Montgomery County, MO went without power for an average of 4.5 hours, a total of 24K customer-hours (Missouri average 2.8 hours). That ranks 40th worst of 115 Missouri counties and 1503rd of 3,019 nationally.
Compared with MO, the US and 2019
Coverage line is EAGLE-I's share of Missouri 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 | November 13, 2020 18:45 | November 13, 2020 21:30 | 2h 45m | 3,497 | 5,531 |
| 2 | November 24, 2020 16:15 | November 24, 2020 18:45 | 2h 30m | 1,642 | 2,873 |
| 3 | March 3, 2020 00:45 | March 3, 2020 03:15 | 2h 30m | 1,630 | 2,853 |
| 4 | August 9, 2020 07:45 | August 9, 2020 20:15 | 12h 30m | 457 | 669 |
| 5 | June 10, 2020 13:00 | June 10, 2020 14:00 | 1h | 429 | 322 |
| 6 | June 1, 2020 16:45 | June 1, 2020 22:15 | 5h 30m | 382 | 920 |
| 7 | January 24, 2020 15:30 | January 24, 2020 23:15 | 7h 45m | 319 | 1,073 |
| 8 | July 3, 2020 22:00 | July 4, 2020 04:45 | 6h 45m | 218 | 1,381 |
| 9 | August 17, 2020 23:30 | August 19, 2020 19:15 | 1d 19h | 184 | 198 |
| 10 | November 24, 2020 22:15 | November 25, 2020 13:00 | 14h 45m | 180 | 866 |
Outage episodes by size in 2020: 13 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 |
|---|---|---|---|---|---|
| Union Electric Co - (MO) | 2020 | 2.6 hrs | 0.86 | 86 min | 0.71 |
| Consolidated Electric Coop | 2020 | 2.5 hrs | 1.17 | 89 min | 0.91 |
| Cuivre River Electric Coop Inc | 2020 | 1.8 hrs | 0.98 | 1.8 hrs | 0.98 |
| Ameren | - | - | - | - | - |
| Callaway Electric Cooperative | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Missouri's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,285 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, MO 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/missouri/montgomery-county