County annual report · FIPS 39037
2021 Darke County, OH Power Outage Report
In 2021, customers in Darke County, OH went without power for an average of 5.7 hours, a total of 91K customer-hours (Ohio average 4.2 hours). That ranks 22nd worst of 88 Ohio counties and 1207th 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 Darke 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 | March 9, 2021 13:45 | March 9, 2021 17:15 | 3h 30m | 4,472 | 3,174 |
| 2 | September 15, 2021 17:45 | September 15, 2021 22:30 | 4h 45m | 1,982 | 2,484 |
| 3 | August 16, 2021 16:30 | August 20, 2021 22:15 | 4d 5h | 1,978 | 3,264 |
| 4 | May 28, 2021 15:00 | May 29, 2021 18:30 | 1d 3h | 1,943 | 8,112 |
| 5 | June 18, 2021 14:15 | June 20, 2021 01:45 | 1d 11h | 1,605 | 3,446 |
| 6 | June 25, 2021 15:30 | June 25, 2021 21:00 | 5h 30m | 1,562 | 2,134 |
| 7 | July 25, 2021 07:15 | July 25, 2021 10:30 | 3h 15m | 1,495 | 3,116 |
| 8 | August 2, 2021 21:00 | August 3, 2021 03:00 | 6h | 1,494 | 6,141 |
| 9 | March 18, 2021 12:45 | March 18, 2021 15:15 | 2h 30m | 1,360 | 410 |
| 10 | February 28, 2021 18:00 | February 28, 2021 21:45 | 3h 45m | 1,030 | 1,869 |
Outage episodes by size in 2021: 43 reached 100+ customers, 10 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 Darke 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 |
| Pioneer Rural Elec Coop, Inc - (OH) | 2021 | 1.7 hrs | 1.01 | 1.7 hrs | 1.01 |
| Midwest Electric, Inc - (OH) | 2021 | 1.8 hrs | 1.19 | 81 min | 0.93 |
| Darke Rural Electric Coop, Inc | - | - | - | - | - |
| City of Arcanum - (OH) | - | - | - | - | - |
| Village of Versailles - (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 ÷ 16,124 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. Darke County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Darke 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/darke-county