County annual report · FIPS 40045
2019 Ellis County, OK Power Outage Report
In 2019, customers in Ellis County, OK went without power for an average of 26.3 hours, a total of 66K customer-hours (Oklahoma average 5.0 hours). That ranks 1st worst of 77 Oklahoma counties and 145th 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 Ellis 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 | August 21, 2019 15:45 | August 21, 2019 16:00 | 15m | 2,009 | 502 |
| 2 | March 23, 2019 03:00 | March 23, 2019 04:30 | 1h 30m | 2,001 | 3,001 |
| 3 | November 27, 2019 01:00 | November 27, 2019 21:30 | 20h 30m | 1,992 | 28K |
| 4 | November 20, 2019 19:45 | November 21, 2019 13:45 | 18h | 1,157 | 2,380 |
| 5 | May 25, 2019 21:45 | May 26, 2019 00:45 | 3h | 1,028 | 1,556 |
| 6 | March 13, 2019 18:00 | March 14, 2019 04:30 | 10h 30m | 737 | 3,493 |
| 7 | July 8, 2019 04:00 | July 9, 2019 13:15 | 1d 9h | 505 | 844 |
| 8 | October 24, 2019 19:45 | October 26, 2019 05:00 | 1d 9h | 500 | 4,810 |
| 9 | May 27, 2019 11:15 | May 27, 2019 15:30 | 4h 15m | 423 | 1,478 |
| 10 | May 8, 2019 02:30 | May 8, 2019 06:15 | 3h 45m | 420 | 333 |
Outage episodes by size in 2019: 43 reached 100+ customers, 5 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 Ellis 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 |
|---|---|---|---|---|---|
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| 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 ÷ 2,488 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. Ellis County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ellis 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/). https://massoutage.com/reports/2019/oklahoma/ellis-county