County annual report · FIPS 39099
2021 Mahoning County, OH Power Outage Report
In 2021, customers in Mahoning County, OH went without power for an average of 1.8 hours, a total of 270K customer-hours (Ohio average 4.2 hours). That ranks 79th worst of 88 Ohio counties and 2329th 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 Mahoning 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 10, 2021 00:15 | August 10, 2021 07:00 | 6h 45m | 14,172 | 12K |
| 2 | June 9, 2021 23:15 | June 10, 2021 02:00 | 2h 45m | 11,661 | 16K |
| 3 | July 16, 2021 21:30 | July 18, 2021 03:30 | 1d 6h | 10,040 | 6,142 |
| 4 | January 15, 2021 13:30 | January 16, 2021 01:00 | 11h 30m | 8,314 | 23K |
| 5 | March 26, 2021 10:15 | March 28, 2021 00:15 | 1d 14h | 8,014 | 28K |
| 6 | August 29, 2021 10:30 | August 29, 2021 14:15 | 3h 45m | 4,460 | 6,423 |
| 7 | February 15, 2021 15:45 | February 15, 2021 17:00 | 1h 15m | 4,019 | 1,029 |
| 8 | July 5, 2021 19:00 | July 6, 2021 01:45 | 6h 45m | 3,708 | 9,878 |
| 9 | June 21, 2021 10:30 | June 22, 2021 05:45 | 19h 15m | 3,436 | 6,024 |
| 10 | April 7, 2021 16:45 | April 8, 2021 05:30 | 12h 45m | 3,037 | 4,597 |
Outage episodes by size in 2021: 125 reached 100+ customers, 33 reached 1,000+ customers, 3 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 Mahoning 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 Edison Co | 2021 | 2.7 hrs | 1.40 | 1.9 hrs | 1.23 |
| City of Columbiana - (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 ÷ 150,783 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. Mahoning County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mahoning 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/mahoning-county