County annual report · FIPS 39041
2020 Delaware County, OH Power Outage Report
In 2020, customers in Delaware County, OH went without power for an average of 10.0 hours, a total of 644K customer-hours (Ohio average 5.2 hours). That ranks 13th worst of 88 Ohio counties and 786th of 3,019 nationally.
Compared with OH, the US and 2019
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Delaware County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2020 13:00 | September 11, 2020 19:15 | 1d 6h | 34,166 | 28K |
| 2 | September 15, 2020 12:15 | September 15, 2020 23:15 | 11h | 34,126 | 34K |
| 3 | September 7, 2020 20:45 | September 10, 2020 03:45 | 2d 7h | 13,332 | 129K |
| 4 | June 10, 2020 11:30 | June 12, 2020 23:30 | 2d 12h | 12,875 | 94K |
| 5 | August 28, 2020 12:15 | August 31, 2020 11:45 | 2d 23h | 5,312 | 28K |
| 6 | October 15, 2020 21:15 | October 16, 2020 07:15 | 10h | 4,989 | 16K |
| 7 | August 13, 2020 12:15 | August 14, 2020 02:00 | 13h 45m | 4,243 | 8,576 |
| 8 | May 5, 2020 10:30 | May 5, 2020 21:15 | 10h 45m | 4,185 | 5,290 |
| 9 | February 24, 2020 13:00 | February 25, 2020 05:15 | 16h 15m | 3,921 | 4,114 |
| 10 | July 6, 2020 12:00 | July 8, 2020 04:15 | 1d 16h | 3,751 | 52K |
Outage episodes by size in 2020: 128 reached 100+ customers, 47 reached 1,000+ customers, 4 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 Delaware County reported on EIA Form 861 for 2020, 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 | 2020 | 4.2 hrs | 1.43 | 2.8 hrs | 1.24 |
| Ohio Edison Co | 2020 | 5.7 hrs | 1.45 | 1.8 hrs | 1.07 |
| Dayton Power & Light Co | 2020 | 2.9 hrs | 1.10 | 2.0 hrs | 0.97 |
| Duke Energy Ohio Inc | 2020 | 3.5 hrs | 1.13 | 1.8 hrs | 0.92 |
| Licking Rural Electric Inc | 2020 | 4.3 hrs | 1.81 | 2.3 hrs | 1.21 |
| Consolidated Cooperative | 2020 | 3.3 hrs | 1.92 | 1.7 hrs | 1.42 |
| Union Rural Electric Coop, Inc | 2020 | 70 min | 0.91 | 61 min | 0.83 |
| City of Westerville - (OH) | 2020 | 2.1 hrs | 1.54 | 52 min | 1.09 |
| Prospect Corporation | - | - | - | - | - |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 64,488 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. Delaware County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Delaware County, OH annual power outage report, 2020, 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/2020/ohio/delaware-county