County annual report · FIPS 39071
2021 Highland County, OH Power Outage Report
In 2021, customers in Highland County, OH went without power for an average of 3.8 hours, a total of 106K customer-hours (Ohio average 4.2 hours). That ranks 44th worst of 88 Ohio counties and 1590th 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 Highland 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 | June 18, 2021 22:30 | June 21, 2021 08:00 | 2d 9h | 2,475 | 26K |
| 2 | December 11, 2021 06:00 | December 13, 2021 17:30 | 2d 11h | 1,216 | 7,547 |
| 3 | November 19, 2021 12:45 | November 19, 2021 13:15 | 30m | 1,197 | 596 |
| 4 | October 13, 2021 13:15 | October 14, 2021 00:15 | 11h | 1,053 | 3,488 |
| 5 | October 11, 2021 12:45 | October 12, 2021 00:30 | 11h 45m | 1,048 | 934 |
| 6 | October 10, 2021 14:45 | October 10, 2021 20:15 | 5h 30m | 1,040 | 5,460 |
| 7 | April 21, 2021 07:45 | April 22, 2021 05:15 | 21h 30m | 1,039 | 2,498 |
| 8 | January 12, 2021 06:45 | January 12, 2021 13:45 | 7h | 794 | 2,711 |
| 9 | January 5, 2021 20:30 | January 5, 2021 22:00 | 1h 30m | 792 | 501 |
| 10 | June 2, 2021 12:00 | June 2, 2021 18:30 | 6h 30m | 708 | 900 |
Outage episodes by size in 2021: 55 reached 100+ customers, 7 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 Highland 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 |
|---|---|---|---|---|---|
| Ohio Power Co | 2021 | 3.9 hrs | 1.36 | 2.9 hrs | 1.26 |
| Dayton Power & Light Co | 2021 | 3.0 hrs | 0.99 | 1.8 hrs | 0.81 |
| 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 |
| Adams Rural Electric Coop, Inc | - | - | - | - | - |
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 ÷ 27,822 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. Highland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Highland 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/highland-county