County annual report · FIPS 39025
2021 Clermont County, OH Power Outage Report
In 2021, customers in Clermont County, OH went without power for an average of 4.6 hours, a total of 422K customer-hours (Ohio average 4.2 hours). That ranks 34th worst of 88 Ohio counties and 1417th of 2,974 nationally.
Compared with OH, the US and 2020
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Clermont County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 15, 2021 08:45 | August 15, 2021 18:15 | 9h 30m | 15,708 | 41K |
| 2 | June 18, 2021 21:30 | June 21, 2021 09:30 | 2d 12h | 9,133 | 66K |
| 3 | August 12, 2021 10:30 | August 15, 2021 05:45 | 2d 19h | 6,011 | 28K |
| 4 | September 28, 2021 09:00 | September 29, 2021 00:00 | 15h | 5,369 | 18K |
| 5 | July 16, 2021 14:15 | July 18, 2021 02:15 | 1d 12h | 5,330 | 11K |
| 6 | September 4, 2021 03:45 | September 4, 2021 09:45 | 6h | 5,319 | 12K |
| 7 | April 26, 2021 00:15 | April 26, 2021 09:15 | 9h | 5,293 | 5,385 |
| 8 | October 7, 2021 04:45 | October 7, 2021 10:45 | 6h | 5,255 | 13K |
| 9 | February 17, 2021 07:00 | February 18, 2021 03:30 | 20h 30m | 4,970 | 7,451 |
| 10 | August 27, 2021 20:45 | August 30, 2021 00:15 | 2d 3h | 4,937 | 27K |
Outage episodes by size in 2021: 162 reached 100+ customers, 35 reached 1,000+ customers, 1 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 Clermont County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| South Central Power Company | 2021 | 4.7 hrs | 2.07 | 4.1 hrs | 1.96 |
| Duke Energy Ohio Inc | 2021 | 2.4 hrs | 1.02 | 2.1 hrs | 0.95 |
| Duke Energy | - | - | - | - | - |
| Village of Bethel - (OH) | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 91,802 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. Clermont County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clermont County, OH annual power outage report, 2021, 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/2021/ohio/clermont-county