County annual report · FIPS 40087
2021 McClain County, OK Power Outage Report
In 2021, customers in McClain County, OK went without power for an average of 2.4 hours, a total of 54K customer-hours (Oklahoma average 3.2 hours). That ranks 57th worst of 77 Oklahoma counties and 2082nd 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 McClain 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 | April 29, 2021 01:30 | April 29, 2021 06:30 | 5h | 3,442 | 4,635 |
| 2 | February 16, 2021 09:30 | February 16, 2021 17:30 | 8h | 3,412 | 6,806 |
| 3 | January 1, 2021 03:45 | January 2, 2021 00:45 | 21h | 2,384 | 2,413 |
| 4 | December 23, 2021 14:45 | December 23, 2021 21:30 | 6h 45m | 1,824 | 2,702 |
| 5 | November 5, 2021 16:30 | November 5, 2021 18:30 | 2h | 1,341 | 677 |
| 6 | February 15, 2021 14:45 | February 15, 2021 19:30 | 4h 45m | 1,263 | 1,748 |
| 7 | October 9, 2021 14:45 | October 11, 2021 04:15 | 1d 13h | 1,165 | 1,576 |
| 8 | July 2, 2021 02:15 | July 2, 2021 17:45 | 15h 30m | 815 | 2,717 |
| 9 | April 14, 2021 00:15 | April 14, 2021 04:00 | 3h 45m | 792 | 647 |
| 10 | February 16, 2021 03:30 | February 16, 2021 05:45 | 2h 15m | 775 | 1,150 |
Outage episodes by size in 2021: 46 reached 100+ customers, 7 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 McClain 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 |
| Oklahoma Electric Coop Inc | 2021 | 2.6 hrs | 2.12 | 71 min | 1.44 |
| Rural Electric Coop, Inc - (OK) | 2021 | 5.2 hrs | 2.89 | 3.9 hrs | 2.24 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| People's Electric Cooperative | - | - | - | - | - |
| City of Purcell - (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 93% of Oklahoma's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 22,625 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. McClain County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), McClain 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/mcclain-county