County annual report · FIPS 39159
2021 Union County, OH Power Outage Report
In 2021, customers in Union County, OH went without power for an average of 2.1 hours, a total of 64K customer-hours (Ohio average 4.2 hours). That ranks 74th worst of 88 Ohio counties and 2184th 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 Union 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 18, 2021 19:15 | March 19, 2021 00:30 | 5h 15m | 4,820 | 6,730 |
| 2 | April 29, 2021 14:00 | April 29, 2021 20:30 | 6h 30m | 4,631 | 8,641 |
| 3 | July 8, 2021 01:15 | July 8, 2021 07:30 | 6h 15m | 3,095 | 11K |
| 4 | August 6, 2021 16:30 | August 6, 2021 18:45 | 2h 15m | 2,493 | 1,011 |
| 5 | August 12, 2021 20:15 | August 13, 2021 07:00 | 10h 45m | 1,329 | 3,379 |
| 6 | April 9, 2021 20:45 | April 10, 2021 08:15 | 11h 30m | 1,322 | 3,394 |
| 7 | September 22, 2021 13:00 | September 22, 2021 17:45 | 4h 45m | 1,302 | 1,630 |
| 8 | October 3, 2021 14:45 | October 3, 2021 17:30 | 2h 45m | 856 | 957 |
| 9 | May 22, 2021 11:30 | May 22, 2021 17:15 | 5h 45m | 846 | 1,078 |
| 10 | November 30, 2021 22:00 | December 1, 2021 00:00 | 2h | 759 | 1,328 |
Outage episodes by size in 2021: 38 reached 100+ customers, 7 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 Union 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 |
| Ohio Edison Co | 2021 | 2.7 hrs | 1.40 | 1.9 hrs | 1.23 |
| 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 |
| Mid-Ohio Energy Coop, Inc | 2018 | 88 min | - | 79 min | - |
| Consolidated Cooperative | 2021 | 2.4 hrs | 1.66 | 1.6 hrs | 1.33 |
| Union Rural Electric Coop, Inc | 2021 | 2.9 hrs | 1.78 | 48 min | 0.93 |
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 ÷ 30,359 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. Union County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Union 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/union-county