County annual report · FIPS 40097
2021 Mayes County, OK Power Outage Report
In 2021, customers in Mayes County, OK went without power for an average of 5.1 hours, a total of 84K customer-hours (Oklahoma average 3.2 hours). That ranks 21st worst of 77 Oklahoma counties and 1318th 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 Mayes 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 07:00 | February 16, 2021 23:00 | 16h | 5,469 | 22K |
| 2 | October 15, 2021 08:30 | October 15, 2021 12:00 | 3h 30m | 1,808 | 2,003 |
| 3 | July 2, 2021 07:00 | July 2, 2021 09:15 | 2h 15m | 1,504 | 2,663 |
| 4 | September 28, 2021 17:45 | September 28, 2021 19:30 | 1h 45m | 1,274 | 1,684 |
| 5 | July 1, 2021 10:45 | July 1, 2021 18:00 | 7h 15m | 1,250 | 1,887 |
| 6 | July 10, 2021 23:15 | July 12, 2021 03:15 | 1d 4h | 1,187 | 5,899 |
| 7 | November 4, 2021 19:00 | November 4, 2021 20:45 | 1h 45m | 1,158 | 906 |
| 8 | September 8, 2021 13:00 | September 8, 2021 15:00 | 2h | 1,155 | 319 |
| 9 | May 17, 2021 06:30 | May 17, 2021 08:00 | 1h 30m | 1,136 | 1,704 |
| 10 | June 10, 2021 15:15 | June 10, 2021 17:15 | 2h | 1,089 | 317 |
Outage episodes by size in 2021: 62 reached 100+ customers, 10 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 Mayes 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 |
| Lake Region Electric Coop, Inc - (OK) | 2021 | 2.2 hrs | 1.09 | 1.9 hrs | 0.99 |
| Northeast Oklahoma Electric Co | - | - | - | - | - |
| City of Pryor - (OK) | - | - | - | - | - |
| Grand River Dam Authority | - | - | - | - | - |
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 ÷ 16,598 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. Mayes County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mayes 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/mayes-county