County annual report · FIPS 40045
2015 Ellis County, OK Power Outage Report
In 2015, customers in Ellis County, OK went without power for an average of 2.5 hours, a total of 6,108 customer-hours (Oklahoma average 5.1 hours). That ranks 38th worst of 74 Oklahoma counties and 1069th 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 Ellis 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 | August 6, 2015 22:00 | August 7, 2015 03:15 | 5h 15m | 512 | 1,806 |
| 2 | October 13, 2015 17:15 | October 13, 2015 17:30 | 15m | 437 | 109 |
| 3 | June 9, 2015 14:45 | June 10, 2015 02:30 | 11h 45m | 434 | 342 |
| 4 | September 4, 2015 15:30 | September 4, 2015 16:00 | 30m | 431 | 108 |
| 5 | July 4, 2015 15:00 | July 4, 2015 20:15 | 5h 15m | 151 | 274 |
| 6 | May 23, 2015 14:45 | May 23, 2015 18:30 | 3h 45m | 128 | 314 |
| 7 | June 12, 2015 07:15 | June 12, 2015 09:45 | 2h 30m | 117 | 247 |
| 8 | May 10, 2015 12:00 | May 10, 2015 14:15 | 2h 15m | 104 | 135 |
| 9 | June 18, 2015 06:30 | June 18, 2015 16:45 | 10h 15m | 94 | 471 |
| 10 | June 18, 2015 00:45 | June 18, 2015 05:45 | 5h | 90 | 234 |
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 Ellis 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 |
|---|---|---|---|---|---|
| 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 n/a of Oklahoma's customers in 2015; 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, 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/). https://massoutage.com/reports/2015/oklahoma/ellis-county