County annual report · FIPS 40059
2018 Harper County, OK Power Outage Report
In 2018, customers in Harper County, OK went without power for an average of 12.4 hours, a total of 26K customer-hours (Oklahoma average 2.7 hours). That ranks 7th worst of 77 Oklahoma counties and 447th 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 Harper 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 | June 23, 2018 01:15 | June 23, 2018 22:15 | 21h | 598 | 2,267 |
| 2 | June 13, 2018 00:30 | June 13, 2018 21:45 | 21h 15m | 297 | 3,480 |
| 3 | June 25, 2018 04:15 | June 27, 2018 18:15 | 2d 14h | 297 | 9,011 |
| 4 | June 17, 2018 08:00 | June 17, 2018 09:30 | 1h 30m | 211 | 294 |
| 5 | September 28, 2018 16:00 | September 28, 2018 16:45 | 45m | 194 | 101 |
| 6 | May 25, 2018 10:30 | May 29, 2018 21:30 | 4d 11h | 151 | 270 |
| 7 | June 11, 2018 06:45 | June 11, 2018 09:30 | 2h 45m | 146 | 58 |
| 8 | June 24, 2018 14:15 | June 24, 2018 17:45 | 3h 30m | 139 | 411 |
| 9 | July 4, 2018 08:30 | July 4, 2018 13:00 | 4h 30m | 139 | 626 |
| 10 | July 26, 2018 08:30 | August 6, 2018 19:45 | 11d 11h | 128 | 2,034 |
Outage episodes by size in 2018: 13 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 Harper 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 |
|---|---|---|---|---|---|
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Northwestern Electric Coop Inc - (OK) | - | - | - | - | - |
| Town of Laverne - (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 ÷ 2,061 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. Harper County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harper 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/). https://massoutage.com/reports/2018/oklahoma/harper-county