County annual report · FIPS 39023
2018 Clark County, OH Power Outage Report
In 2018, customers in Clark County, OH went without power for an average of 2.2 hours, a total of 181K customer-hours (Ohio average 4.1 hours). That ranks 68th worst of 88 Ohio counties and 1797th 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 Clark 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 | August 17, 2018 05:00 | August 18, 2018 08:00 | 1d 3h | 9,047 | 37K |
| 2 | October 20, 2018 21:15 | October 23, 2018 02:15 | 2d 5h | 5,245 | 34K |
| 3 | December 6, 2018 18:45 | December 6, 2018 21:30 | 2h 45m | 3,972 | 1,002 |
| 4 | November 9, 2018 13:00 | November 10, 2018 08:45 | 19h 45m | 3,259 | 5,099 |
| 5 | November 15, 2018 08:45 | November 18, 2018 23:00 | 3d 14h | 2,542 | 23K |
| 6 | July 3, 2018 17:00 | July 4, 2018 10:45 | 17h 45m | 2,421 | 6,649 |
| 7 | June 9, 2018 22:00 | June 10, 2018 12:15 | 14h 15m | 2,052 | 4,926 |
| 8 | May 17, 2018 23:15 | May 18, 2018 07:30 | 8h 15m | 1,998 | 1,258 |
| 9 | August 13, 2018 11:45 | August 13, 2018 22:15 | 10h 30m | 1,892 | 2,404 |
| 10 | January 23, 2018 03:00 | January 23, 2018 13:30 | 10h 30m | 1,438 | 3,326 |
Outage episodes by size in 2018: 76 reached 100+ customers, 13 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 Clark 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 |
|---|---|---|---|---|---|
| Ohio Edison Co | 2018 | 3.2 hrs | 1.33 | 1.8 hrs | 1.06 |
| Dayton Power & Light Co | 2018 | 3.2 hrs | 1.14 | 1.7 hrs | 0.91 |
| Duke Energy Ohio Inc | 2018 | 5.3 hrs | 1.54 | 2.4 hrs | 1.15 |
| Pioneer Rural Elec Coop, Inc - (OH) | 2018 | 2.5 hrs | 1.35 | 1.8 hrs | 1.21 |
| South Vienna Corporation | - | - | - | - | - |
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 ÷ 83,871 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. Clark County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clark 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/clark-county