County annual report · FIPS 40067
2018 Jefferson County, OK Power Outage Report
In 2018, customers in Jefferson County, OK went without power for an average of 12.4 hours, a total of 30K customer-hours (Oklahoma average 2.7 hours). That ranks 8th worst of 77 Oklahoma counties and 449th of 2,798 nationally.
Compared with OK, the US and 2017
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Jefferson 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 | July 22, 2018 19:45 | July 22, 2018 21:30 | 1h 45m | 1,299 | 2,273 |
| 2 | September 20, 2018 23:30 | September 21, 2018 08:00 | 8h 30m | 816 | 3,713 |
| 3 | February 20, 2018 15:45 | February 20, 2018 18:45 | 3h | 752 | 2,255 |
| 4 | February 20, 2018 14:30 | February 20, 2018 14:45 | 15m | 676 | 169 |
| 5 | February 21, 2018 04:30 | February 21, 2018 15:30 | 11h | 661 | 5,841 |
| 6 | February 22, 2018 15:30 | February 24, 2018 01:00 | 1d 9h | 414 | 1,930 |
| 7 | August 12, 2018 13:30 | August 12, 2018 17:00 | 3h 30m | 373 | 401 |
| 8 | June 22, 2018 20:15 | June 26, 2018 02:00 | 3d 5h | 366 | 2,533 |
| 9 | September 21, 2018 17:15 | September 21, 2018 18:00 | 45m | 273 | 156 |
| 10 | September 17, 2018 01:15 | September 17, 2018 03:00 | 1h 45m | 268 | 407 |
Outage episodes by size in 2018: 27 reached 100+ customers, 1 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 Jefferson 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 |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2018 | 2.1 hrs | 1.34 | 1.7 hrs | 1.17 |
| Cotton Electric Coop, Inc | 2018 | 3.6 hrs | 1.91 | 3.3 hrs | 1.84 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Red River Valley Rrl Elec Assn | - | - | - | - | - |
| Town of Ryan - (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 89% of Oklahoma's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,420 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson County, OK 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/oklahoma/jefferson-county