County annual report · FIPS 40027
2021 Cleveland County, OK Power Outage Report
In 2021, customers in Cleveland County, OK went without power for an average of 1.8 hours, a total of 269K customer-hours (Oklahoma average 3.2 hours). That ranks 64th worst of 77 Oklahoma counties and 2333rd 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 Cleveland 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 | February 16, 2021 08:30 | February 16, 2021 23:00 | 14h 30m | 23,808 | 52K |
| 2 | June 12, 2021 06:45 | June 12, 2021 21:00 | 14h 15m | 9,116 | 15K |
| 3 | October 1, 2021 22:00 | October 1, 2021 22:30 | 30m | 6,498 | 3,249 |
| 4 | August 13, 2021 22:00 | August 13, 2021 22:45 | 45m | 6,493 | 4,081 |
| 5 | December 25, 2021 13:00 | December 25, 2021 16:45 | 3h 45m | 5,240 | 7,998 |
| 6 | June 29, 2021 21:30 | June 30, 2021 03:15 | 5h 45m | 4,579 | 7,073 |
| 7 | May 26, 2021 23:15 | May 27, 2021 00:15 | 1h | 4,335 | 3,830 |
| 8 | January 1, 2021 04:15 | January 2, 2021 02:00 | 21h 45m | 3,573 | 26K |
| 9 | December 11, 2021 13:15 | December 11, 2021 20:30 | 7h 15m | 3,458 | 1,956 |
| 10 | February 14, 2021 10:30 | February 15, 2021 04:30 | 18h | 3,415 | 12K |
Outage episodes by size in 2021: 96 reached 100+ customers, 31 reached 1,000+ customers, 1 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 Cleveland 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 |
|---|---|---|---|---|---|
| Canadian Valley Elec Coop, Inc | 2021 | 4.9 hrs | 1.60 | 3.2 hrs | 1.16 |
| Oklahoma Electric Coop Inc | 2021 | 2.6 hrs | 2.12 | 71 min | 1.44 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| City of Lexington - (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 ÷ 151,488 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. Cleveland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cleveland 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/cleveland-county