County annual report · FIPS 39141
2021 Ross County, OH Power Outage Report
In 2021, customers in Ross County, OH went without power for an average of 4.7 hours, a total of 246K customer-hours (Ohio average 4.2 hours). That ranks 32nd worst of 88 Ohio counties and 1397th 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 Ross 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 | February 4, 2021 09:45 | February 4, 2021 21:00 | 11h 15m | 2,749 | 8,989 |
| 2 | April 10, 2021 09:00 | April 10, 2021 11:00 | 2h | 2,551 | 3,189 |
| 3 | July 29, 2021 11:30 | July 31, 2021 02:00 | 1d 14h | 2,202 | 12K |
| 4 | January 5, 2021 23:45 | January 6, 2021 03:45 | 4h | 1,892 | 1,219 |
| 5 | June 18, 2021 22:00 | June 20, 2021 07:00 | 1d 9h | 1,843 | 13K |
| 6 | April 20, 2021 20:00 | April 21, 2021 02:15 | 6h 15m | 1,702 | 4,685 |
| 7 | December 11, 2021 07:45 | December 13, 2021 01:15 | 1d 17h | 1,597 | 19K |
| 8 | April 21, 2021 06:00 | April 21, 2021 23:45 | 17h 45m | 1,574 | 8,560 |
| 9 | October 23, 2021 11:00 | October 23, 2021 21:30 | 10h 30m | 1,510 | 14K |
| 10 | October 24, 2021 06:45 | October 24, 2021 16:45 | 10h | 1,477 | 4,793 |
Outage episodes by size in 2021: 122 reached 100+ customers, 16 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 Ross 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 |
| Buckeye Rural Elec Coop, Inc | 2021 | 100.1 hrs | 3.90 | 9.1 hrs | 2.26 |
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 ÷ 52,738 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. Ross County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ross 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/ross-county