County annual report · FIPS 40057
2021 Harmon County, OK Power Outage Report
In 2021, customers in Harmon County, OK went without power for an average of 0.5 hours, a total of 780 customer-hours (Oklahoma average 3.2 hours). That ranks 75th worst of 77 Oklahoma counties and 2798th of 2,974 nationally.
Compared with OK, the US and 2020
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Harmon County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 26, 2021 20:15 | May 26, 2021 21:15 | 1h | 98 | 98 |
| 2 | August 13, 2021 21:00 | August 14, 2021 01:00 | 4h | 97 | 163 |
| 3 | June 8, 2021 19:15 | June 8, 2021 19:30 | 15m | 96 | 24 |
| 4 | September 16, 2021 20:15 | September 16, 2021 21:00 | 45m | 94 | 48 |
| 5 | August 19, 2021 22:15 | August 20, 2021 03:15 | 5h | 38 | 111 |
| 6 | June 23, 2021 19:45 | June 23, 2021 20:30 | 45m | 32 | 21 |
| 7 | August 18, 2021 03:15 | August 18, 2021 04:15 | 1h | 9 | 9 |
| 8 | July 28, 2021 14:30 | July 28, 2021 15:45 | 1h 15m | 6 | 8 |
| 9 | November 30, 2021 18:15 | November 30, 2021 19:15 | 1h | 6 | 4 |
| 10 | May 20, 2021 03:45 | May 20, 2021 07:00 | 3h 15m | 5 | 16 |
Outage episodes by size in 2021: 0 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 Harmon County reported on EIA Form 861 for 2021, 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 | 2021 | 2.3 hrs | 1.39 | 1.9 hrs | 1.21 |
| Northfork Electric Coop, Inc | 2018 | 3.7 hrs | - | 2.7 hrs | - |
| Harmon Electric Assn Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 93% of Oklahoma's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,471 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. Harmon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harmon County, OK annual power outage report, 2021, 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/2021/oklahoma/harmon-county