County annual report · FIPS 39081
2021 Jefferson County, OH Power Outage Report
In 2021, customers in Jefferson County, OH went without power for an average of 4.9 hours, a total of 218K customer-hours (Ohio average 4.2 hours). That ranks 30th worst of 88 Ohio counties and 1355th 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 Jefferson 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 | August 12, 2021 12:30 | August 15, 2021 18:30 | 3d 6h | 2,391 | 33K |
| 2 | June 21, 2021 04:30 | June 23, 2021 00:00 | 1d 19h | 1,977 | 18K |
| 3 | July 29, 2021 21:30 | July 31, 2021 03:45 | 1d 6h | 1,894 | 12K |
| 4 | July 7, 2021 18:00 | July 9, 2021 06:45 | 1d 12h | 1,838 | 7,485 |
| 5 | March 26, 2021 10:45 | March 27, 2021 15:15 | 1d 4h | 1,562 | 6,612 |
| 6 | June 19, 2021 14:45 | June 19, 2021 21:00 | 6h 15m | 1,491 | 4,105 |
| 7 | February 16, 2021 02:00 | February 17, 2021 01:00 | 23h | 1,450 | 7,226 |
| 8 | May 22, 2021 15:45 | May 22, 2021 18:45 | 3h | 1,425 | 2,903 |
| 9 | April 9, 2021 23:00 | April 10, 2021 02:45 | 3h 45m | 1,371 | 3,827 |
| 10 | April 9, 2021 07:00 | April 9, 2021 09:45 | 2h 45m | 1,369 | 3,765 |
Outage episodes by size in 2021: 67 reached 100+ customers, 12 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 Jefferson 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 |
| Carroll Electric Coop, Inc - (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 ÷ 44,919 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson 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/jefferson-county