County annual report · FIPS 39113
2025 Montgomery County, OH Power Outage Report
In 2025, customers in Montgomery County, OH went without power for an average of 2.2 hours, a total of 656K customer-hours (Ohio average 4.0 hours). That ranks 73rd worst of 88 Ohio counties and 2341st of 3,000 nationally.
Compared with OH, the US and 2024
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Montgomery County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 18, 2025 11:30 | June 25, 2025 11:00 | 6d 23h | 19,553 | 233K |
| 2 | March 3, 2025 13:15 | March 3, 2025 20:15 | 7h | 10,640 | 2,698 |
| 3 | April 29, 2025 17:45 | May 1, 2025 07:45 | 1d 14h | 7,658 | 31K |
| 4 | October 10, 2025 12:45 | October 11, 2025 22:30 | 1d 9h | 5,183 | 4,846 |
| 5 | June 25, 2025 14:30 | June 28, 2025 01:00 | 2d 10h | 4,530 | 20K |
| 6 | October 25, 2025 14:30 | October 25, 2025 14:45 | 15m | 4,300 | 1,075 |
| 7 | January 21, 2025 13:45 | January 23, 2025 00:00 | 1d 10h | 4,072 | 14K |
| 8 | October 6, 2025 19:00 | October 8, 2025 21:00 | 2d 2h | 3,863 | 16K |
| 9 | April 3, 2025 04:15 | April 6, 2025 03:45 | 2d 23h | 3,170 | 41K |
| 10 | November 25, 2025 12:30 | November 28, 2025 00:00 | 2d 11h | 3,063 | 9,471 |
Outage episodes by size in 2025: 178 reached 100+ customers, 41 reached 1,000+ customers, 2 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 2025, 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 |
|---|---|---|---|---|---|
| Dayton Power & Light Co | 2024 | 8.4 hrs | 1.26 | 1.8 hrs | 0.87 |
| Duke Energy Ohio Inc | 2024 | 5.4 hrs | 1.04 | 1.7 hrs | 0.80 |
| Pioneer Rural Elec Coop, Inc - (OH) | 2024 | 2.1 hrs | 1.25 | 1.6 hrs | 1.05 |
| Butler Rural Electric Coop Inc - (OH) | 2024 | 3.8 hrs | 2.06 | 61 min | 1.70 |
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 Ohio's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 295,834 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, OH annual power outage report, 2025, 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/2025/ohio/montgomery-county