County annual report · FIPS 39023
2020 Clark County, OH Power Outage Report
In 2020, customers in Clark County, OH went without power for an average of 1.7 hours, a total of 146K customer-hours (Ohio average 5.2 hours). That ranks 82nd worst of 88 Ohio counties and 2363rd of 3,019 nationally.
Compared with OH, the US and 2019
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Clark County, 2020
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 4, 2020 14:00 | November 4, 2020 18:45 | 4h 45m | 6,682 | 7,950 |
| 2 | November 15, 2020 07:30 | November 18, 2020 23:00 | 3d 15h | 5,096 | 32K |
| 3 | March 28, 2020 18:00 | March 29, 2020 05:45 | 11h 45m | 5,055 | 9,484 |
| 4 | May 19, 2020 06:15 | May 20, 2020 08:00 | 1d 1h | 3,768 | 9,111 |
| 5 | November 24, 2020 11:30 | November 24, 2020 15:30 | 4h | 3,182 | 2,062 |
| 6 | March 28, 2020 07:00 | March 28, 2020 11:30 | 4h 30m | 2,555 | 4,251 |
| 7 | June 19, 2020 19:45 | June 20, 2020 03:45 | 8h | 2,257 | 1,818 |
| 8 | July 24, 2020 01:15 | July 24, 2020 10:45 | 9h 30m | 1,932 | 4,417 |
| 9 | April 5, 2020 04:30 | April 5, 2020 16:15 | 11h 45m | 1,875 | 3,794 |
| 10 | April 13, 2020 14:15 | April 14, 2020 02:15 | 12h | 1,622 | 6,002 |
Outage episodes by size in 2020: 74 reached 100+ customers, 17 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 2020, 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 | 2020 | 5.7 hrs | 1.45 | 1.8 hrs | 1.07 |
| Dayton Power & Light Co | 2020 | 2.9 hrs | 1.10 | 2.0 hrs | 0.97 |
| Duke Energy Ohio Inc | 2020 | 3.5 hrs | 1.13 | 1.8 hrs | 0.92 |
| Pioneer Rural Elec Coop, Inc - (OH) | 2020 | 2.2 hrs | 1.47 | 1.5 hrs | 1.14 |
| 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 2020; 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, 2020, 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/2020/ohio/clark-county