County annual report · FIPS 40043
2019 Dewey County, OK Power Outage Report
In 2019, customers in Dewey County, OK went without power for an average of 12.6 hours, a total of 33K customer-hours (Oklahoma average 5.0 hours). That ranks 5th worst of 77 Oklahoma counties and 430th of 2,945 nationally.
Compared with OK, the US and 2018
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Dewey County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 11, 2019 11:00 | November 12, 2019 02:15 | 15h 15m | 1,395 | 6,936 |
| 2 | August 12, 2019 21:00 | August 13, 2019 16:30 | 19h 30m | 1,327 | 5,664 |
| 3 | June 4, 2019 20:15 | June 4, 2019 22:30 | 2h 15m | 1,186 | 1,042 |
| 4 | March 9, 2019 08:15 | March 9, 2019 09:30 | 1h 15m | 707 | 884 |
| 5 | March 10, 2019 00:00 | March 10, 2019 01:30 | 1h 30m | 626 | 678 |
| 6 | November 13, 2019 06:15 | November 13, 2019 10:30 | 4h 15m | 604 | 2,559 |
| 7 | February 7, 2019 00:00 | February 7, 2019 09:00 | 9h | 465 | 1,295 |
| 8 | March 23, 2019 04:00 | March 23, 2019 13:00 | 9h | 417 | 2,728 |
| 9 | June 16, 2019 02:45 | June 16, 2019 08:00 | 5h 15m | 387 | 1,180 |
| 10 | March 25, 2019 23:45 | March 26, 2019 00:45 | 1h | 345 | 345 |
Outage episodes by size in 2019: 28 reached 100+ customers, 3 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 2019, 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 | 2018 | 2.1 hrs | 1.34 | 1.7 hrs | 1.17 |
| Cimarron Electric Coop | 2018 | 2.4 hrs | 1.10 | 59 min | 0.67 |
| Northfork Electric Coop, Inc | 2018 | 3.7 hrs | - | 2.7 hrs | - |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
| 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 90% of Oklahoma's customers in 2019; 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, 2019, 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/2019/oklahoma/dewey-county