County annual report · FIPS 39001
2021 Adams County, OH Power Outage Report
In 2021, customers in Adams County, OH went without power for an average of 10.4 hours, a total of 176K customer-hours (Ohio average 4.2 hours). That ranks 6th worst of 88 Ohio counties and 758th 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 Adams 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 22:45 | June 21, 2021 20:15 | 2d 21h | 3,410 | 55K |
| 2 | December 28, 2021 13:45 | December 28, 2021 16:15 | 2h 30m | 2,064 | 5,148 |
| 3 | April 11, 2021 01:15 | April 11, 2021 14:30 | 13h 15m | 1,715 | 3,731 |
| 4 | May 9, 2021 11:45 | May 10, 2021 14:30 | 1d 2h | 1,525 | 6,070 |
| 5 | November 15, 2021 11:15 | November 15, 2021 11:45 | 30m | 1,147 | 413 |
| 6 | April 29, 2021 20:45 | April 29, 2021 22:30 | 1h 45m | 1,140 | 981 |
| 7 | June 13, 2021 19:45 | June 14, 2021 11:00 | 15h 15m | 1,120 | 6,459 |
| 8 | July 1, 2021 02:45 | July 2, 2021 12:30 | 1d 9h | 964 | 2,649 |
| 9 | May 3, 2021 13:45 | May 3, 2021 22:30 | 8h 45m | 915 | 794 |
| 10 | December 11, 2021 09:15 | December 12, 2021 04:45 | 19h 30m | 901 | 4,399 |
Outage episodes by size in 2021: 62 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 Adams 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 |
| 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 ÷ 16,880 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams 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/adams-county