County annual report · FIPS 39061
2025 Hamilton County, OH Power Outage Report
In 2025, customers in Hamilton County, OH went without power for an average of 2.4 hours, a total of 1.1M customer-hours (Ohio average 4.0 hours). That ranks 69th worst of 88 Ohio counties and 2250th 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 Hamilton 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 00:00 | June 24, 2025 09:45 | 6d 9h | 19,277 | 152K |
| 2 | April 2, 2025 11:15 | April 8, 2025 10:15 | 5d 23h | 12,974 | 131K |
| 3 | October 9, 2025 12:15 | October 10, 2025 10:00 | 21h 45m | 11,216 | 8,038 |
| 4 | July 12, 2025 11:00 | July 16, 2025 10:00 | 3d 23h | 10,293 | 32K |
| 5 | February 5, 2025 13:15 | February 6, 2025 12:15 | 23h | 8,486 | 57K |
| 6 | June 25, 2025 10:15 | June 26, 2025 06:15 | 20h | 5,646 | 19K |
| 7 | January 15, 2025 11:45 | January 16, 2025 03:45 | 16h | 5,096 | 12K |
| 8 | January 9, 2025 13:45 | January 10, 2025 07:15 | 17h 30m | 5,044 | 2,267 |
| 9 | August 27, 2025 10:30 | August 28, 2025 06:15 | 19h 45m | 4,840 | 2,275 |
| 10 | July 26, 2025 23:30 | July 29, 2025 01:45 | 2d 2h | 4,827 | 8,348 |
Outage episodes by size in 2025: 242 reached 100+ customers, 75 reached 1,000+ customers, 4 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 Hamilton 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 |
|---|---|---|---|---|---|
| Duke Energy Ohio Inc | 2024 | 5.4 hrs | 1.04 | 1.7 hrs | 0.80 |
| Butler Rural Electric Coop Inc - (OH) | 2024 | 3.8 hrs | 2.06 | 61 min | 1.70 |
| Duke Energy | - | - | - | - | - |
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 ÷ 437,530 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. Hamilton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Hamilton 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/hamilton-county