County annual report · FIPS 39141
2015 Ross County, OH Power Outage Report
In 2015, customers in Ross County, OH went without power for an average of 2.5 hours, a total of 134K customer-hours (Ohio average 2.5 hours). That ranks 34th worst of 88 Ohio counties and 1049th of 2,484 nationally.
Compared with OH, the US
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Ross County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 11, 2015 21:30 | May 12, 2015 20:15 | 22h 45m | 3,619 | 17K |
| 2 | September 17, 2015 22:30 | September 18, 2015 02:00 | 3h 30m | 3,588 | 5,112 |
| 3 | April 21, 2015 19:15 | April 22, 2015 01:15 | 6h | 3,262 | 8,739 |
| 4 | August 1, 2015 19:00 | August 1, 2015 20:30 | 1h 30m | 2,458 | 3,326 |
| 5 | July 13, 2015 16:45 | July 16, 2015 17:30 | 3d | 2,190 | 29K |
| 6 | April 8, 2015 16:30 | April 8, 2015 20:00 | 3h 30m | 1,917 | 5,673 |
| 7 | March 19, 2015 11:45 | March 19, 2015 18:30 | 6h 45m | 1,682 | 5,956 |
| 8 | July 18, 2015 23:30 | July 19, 2015 01:30 | 2h | 1,433 | 2,865 |
| 9 | January 13, 2015 08:45 | January 13, 2015 09:30 | 45m | 1,323 | 992 |
| 10 | September 23, 2015 22:30 | September 24, 2015 02:45 | 4h 15m | 1,239 | 2,277 |
Outage episodes by size in 2015: 60 reached 100+ customers, 11 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 2015, 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 | 2015 | 4.0 hrs | 1.39 | 3.4 hrs | 1.32 |
| Dayton Power & Light Co | 2015 | 2.0 hrs | 0.96 | 1.8 hrs | 0.92 |
| South Central Power Company | 2015 | 4.0 hrs | 1.49 | 4.0 hrs | 1.49 |
| Duke Energy Ohio Inc | 2015 | 3.8 hrs | 1.38 | 2.2 hrs | 1.16 |
| Buckeye Rural Elec 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 n/a of Ohio's customers in 2015; 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, 2015, 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/2015/ohio/ross-county