County annual report · FIPS 39059
2021 Guernsey County, OH Power Outage Report
In 2021, customers in Guernsey County, OH went without power for an average of 5.0 hours, a total of 135K customer-hours (Ohio average 4.2 hours). That ranks 29th worst of 88 Ohio counties and 1333rd 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 Guernsey 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 | July 7, 2021 17:45 | July 8, 2021 17:15 | 23h 30m | 2,739 | 27K |
| 2 | February 5, 2021 13:15 | February 5, 2021 15:15 | 2h | 2,378 | 4,162 |
| 3 | June 13, 2021 17:00 | June 14, 2021 17:15 | 1d | 1,883 | 3,300 |
| 4 | October 16, 2021 08:00 | October 17, 2021 00:45 | 16h 45m | 1,683 | 11K |
| 5 | August 31, 2021 01:00 | August 31, 2021 04:00 | 3h | 1,563 | 1,188 |
| 6 | August 13, 2021 21:00 | August 15, 2021 02:45 | 1d 5h | 960 | 5,338 |
| 7 | January 31, 2021 17:00 | January 31, 2021 20:15 | 3h 15m | 908 | 1,589 |
| 8 | August 10, 2021 17:00 | August 13, 2021 20:00 | 3d 3h | 806 | 16K |
| 9 | June 30, 2021 17:15 | July 1, 2021 05:00 | 11h 45m | 607 | 4,112 |
| 10 | December 11, 2021 11:00 | December 12, 2021 16:30 | 1d 5h | 577 | 9,016 |
Outage episodes by size in 2021: 49 reached 100+ customers, 5 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 Guernsey 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 |
| Guernsey-Muskingum El Coop Inc | 2021 | 8.2 hrs | 2.05 | 8.2 hrs | 2.05 |
| Frontier Power Company | 2018 | 2.2 hrs | 1.43 | 2.2 hrs | 1.43 |
| Washington Electric Coop - (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 ÷ 27,110 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. Guernsey County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Guernsey 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/guernsey-county