County annual report · FIPS 39061
2018 Hamilton County, OH Power Outage Report
In 2018, customers in Hamilton County, OH went without power for an average of 5.7 hours, a total of 2.5M customer-hours (Ohio average 4.1 hours). That ranks 18th worst of 88 Ohio counties and 951st of 2,798 nationally.
Compared with OH, the US and 2017
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Hamilton County, 2018
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 14, 2018 05:45 | November 19, 2018 03:15 | 4d 21h | 66,555 | 1.2M |
| 2 | May 26, 2018 05:45 | June 3, 2018 09:00 | 8d 3h | 24,194 | 169K |
| 3 | September 5, 2018 09:30 | September 7, 2018 09:45 | 2d | 19,588 | 89K |
| 4 | November 5, 2018 13:45 | November 7, 2018 11:15 | 1d 21h | 13,616 | 24K |
| 5 | October 20, 2018 15:15 | October 23, 2018 00:45 | 2d 9h | 12,503 | 115K |
| 6 | July 12, 2018 11:15 | July 14, 2018 07:00 | 1d 19h | 7,475 | 16K |
| 7 | September 7, 2018 12:00 | September 13, 2018 07:15 | 5d 19h | 7,132 | 63K |
| 8 | June 8, 2018 13:45 | June 11, 2018 10:15 | 2d 20h | 6,433 | 29K |
| 9 | August 25, 2018 12:45 | August 26, 2018 03:15 | 14h 30m | 5,876 | 3,743 |
| 10 | August 29, 2018 10:00 | August 31, 2018 23:15 | 2d 13h | 5,856 | 9,407 |
Outage episodes by size in 2018: 237 reached 100+ customers, 84 reached 1,000+ customers, 5 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 2018, 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 | 2018 | 5.3 hrs | 1.54 | 2.4 hrs | 1.15 |
| Butler Rural Electric Coop Inc - (OH) | 2018 | 4.7 hrs | 2.39 | 1.5 hrs | 1.11 |
| 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 93% of Ohio's customers in 2018; 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, 2018, 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/2018/ohio/hamilton-county