County annual report · FIPS 40043
2015 Dewey County, OK Power Outage Report
In 2015, customers in Dewey County, OK went without power for an average of 5.8 hours, a total of 15K customer-hours (Oklahoma average 5.1 hours). That ranks 19th worst of 74 Oklahoma counties and 487th of 2,484 nationally.
Compared with OK, the US
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Dewey County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 27, 2015 16:00 | April 27, 2015 19:30 | 3h 30m | 355 | 971 |
| 2 | July 4, 2015 05:30 | July 4, 2015 07:00 | 1h 30m | 353 | 389 |
| 3 | September 2, 2015 13:15 | September 2, 2015 13:45 | 30m | 353 | 177 |
| 4 | May 18, 2015 06:00 | May 18, 2015 14:00 | 8h | 346 | 1,719 |
| 5 | December 28, 2015 03:00 | December 29, 2015 07:30 | 1d 4h | 346 | 9,774 |
| 6 | February 1, 2015 01:00 | February 1, 2015 03:15 | 2h 15m | 345 | 690 |
| 7 | December 30, 2015 19:45 | December 30, 2015 22:30 | 2h 45m | 174 | 435 |
| 8 | May 16, 2015 23:00 | May 17, 2015 01:45 | 2h 45m | 147 | 216 |
| 9 | May 16, 2015 18:15 | May 16, 2015 20:45 | 2h 30m | 64 | 37 |
| 10 | August 12, 2015 23:30 | August 13, 2015 03:45 | 4h 15m | 62 | 111 |
Outage episodes by size in 2015: 8 reached 100+ customers, 0 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 Dewey County reported on EIA Form 861 for 2015, 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 | 2015 | 6.7 hrs | 1.58 | 1.9 hrs | 1.17 |
| Cimarron Electric Coop | 2015 | 129.5 hrs | 6.05 | 68 min | 0.87 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
| Northfork Electric Coop, Inc | - | - | - | - | - |
| Northwestern Electric Coop Inc - (OK) | - | - | - | - | - |
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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,623 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. Dewey County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dewey County, OK annual power outage report, 2015, 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/2015/oklahoma/dewey-county