County annual report · FIPS 39041
2018 Delaware County, OH Power Outage Report
In 2018, customers in Delaware County, OH went without power for an average of 2.1 hours, a total of 134K customer-hours (Ohio average 4.1 hours). That ranks 70th worst of 88 Ohio counties and 1838th of 2,798 nationally.
Compared with OH, the US and 2017
Coverage line is EAGLE-I's share of Ohio customers tracked each year.
Biggest outages in Delaware County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 10, 2018 12:15 | January 10, 2018 23:45 | 11h 30m | 2,678 | 4,895 |
| 2 | November 5, 2018 12:00 | November 7, 2018 04:00 | 1d 16h | 1,744 | 7,402 |
| 3 | April 3, 2018 15:45 | April 7, 2018 00:45 | 3d 9h | 1,461 | 7,729 |
| 4 | August 3, 2018 12:15 | August 3, 2018 20:45 | 8h 30m | 1,192 | 2,641 |
| 5 | June 3, 2018 15:45 | June 5, 2018 00:00 | 1d 8h | 1,186 | 4,894 |
| 6 | January 8, 2018 09:30 | January 8, 2018 13:45 | 4h 15m | 1,143 | 3,725 |
| 7 | January 27, 2018 13:30 | January 27, 2018 16:30 | 3h | 1,033 | 1,095 |
| 8 | November 15, 2018 11:30 | November 16, 2018 15:45 | 1d 4h | 910 | 1,921 |
| 9 | June 14, 2018 12:00 | June 14, 2018 21:45 | 9h 45m | 896 | 3,411 |
| 10 | May 31, 2018 07:15 | June 1, 2018 03:00 | 19h 45m | 863 | 4,640 |
Outage episodes by size in 2018: 88 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 Delaware County reported on EIA Form 861 for 2018, 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 | 2018 | 4.3 hrs | 1.57 | 3.6 hrs | 1.46 |
| Ohio Edison Co | 2018 | 3.2 hrs | 1.33 | 1.8 hrs | 1.06 |
| Dayton Power & Light Co | 2018 | 3.2 hrs | 1.14 | 1.7 hrs | 0.91 |
| Duke Energy Ohio Inc | 2018 | 5.3 hrs | 1.54 | 2.4 hrs | 1.15 |
| Licking Rural Electric Inc | 2018 | 5.8 hrs | 2.11 | 2.6 hrs | 1.40 |
| Consolidated Cooperative | 2018 | 2.2 hrs | 1.39 | 82 min | 1.02 |
| Union Rural Electric Coop, Inc | 2018 | 4.9 hrs | 2.61 | 1.9 hrs | 1.64 |
| City of Westerville - (OH) | 2018 | 57 min | 1.02 | 25 min | 0.58 |
| 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 2018; 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, 2018, 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/2018/ohio/delaware-county