County annual report · FIPS 40041
2017 Delaware County, OK Power Outage Report
In 2017, customers in Delaware County, OK went without power for an average of 14.6 hours, a total of 347K customer-hours (Oklahoma average 3.2 hours). That ranks 8th worst of 77 Oklahoma counties and 375th of 2,786 nationally.
Compared with OK, the US and 2016
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Delaware County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 28, 2017 05:30 | July 28, 2017 11:30 | 6h | 9,298 | 22K |
| 2 | April 11, 2017 15:45 | April 12, 2017 03:15 | 11h 30m | 7,142 | 1,902 |
| 3 | May 17, 2017 18:45 | May 21, 2017 04:30 | 3d 9h | 6,174 | 42K |
| 4 | March 7, 2017 04:15 | March 7, 2017 21:30 | 17h 15m | 5,658 | 18K |
| 5 | April 29, 2017 05:15 | May 3, 2017 20:45 | 4d 15h | 5,392 | 48K |
| 6 | May 11, 2017 05:00 | May 17, 2017 17:30 | 6d 12h | 4,914 | 21K |
| 7 | April 1, 2017 05:00 | April 1, 2017 06:30 | 1h 30m | 4,676 | 7,014 |
| 8 | August 28, 2017 18:45 | August 28, 2017 19:15 | 30m | 4,668 | 2,334 |
| 9 | March 30, 2017 20:15 | March 30, 2017 22:15 | 2h | 4,666 | 3,528 |
| 10 | April 17, 2017 02:45 | April 18, 2017 01:30 | 22h 45m | 4,590 | 21K |
Outage episodes by size in 2017: 163 reached 100+ customers, 45 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 2017, 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 |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2017 | 3.0 hrs | 1.33 | 1.7 hrs | 1.08 |
| Empire District Electric Co | 2017 | 2.4 hrs | 1.30 | 1.6 hrs | 1.00 |
| Ozarks Electric Coop Corp - (AR) | 2017 | 1.9 hrs | 1.01 | 45 min | 0.64 |
| Lake Region Electric Coop, Inc - (OK) | 2017 | 34 min | 1.65 | 13 min | 1.14 |
| Northeast Oklahoma Electric Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Oklahoma's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 23,694 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, OK annual power outage report, 2017, 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/2017/oklahoma/delaware-county