County annual report · FIPS 40021
2020 Cherokee County, OK Power Outage Report
In 2020, customers in Cherokee County, OK went without power for an average of 1.6 hours, a total of 45K customer-hours (Oklahoma average 27.7 hours). That ranks 72nd worst of 77 Oklahoma counties and 2405th of 3,019 nationally.
Compared with OK, the US and 2019
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Cherokee County, 2020
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 15, 2020 18:45 | May 22, 2020 22:15 | 7d 3h | 1,757 | 7,943 |
| 2 | July 11, 2020 18:15 | July 14, 2020 13:30 | 2d 19h | 1,367 | 18K |
| 3 | June 24, 2020 11:30 | June 24, 2020 18:45 | 7h 15m | 1,105 | 673 |
| 4 | July 18, 2020 06:00 | July 18, 2020 09:30 | 3h 30m | 551 | 1,800 |
| 5 | August 11, 2020 23:00 | August 12, 2020 00:00 | 1h | 517 | 318 |
| 6 | October 6, 2020 20:45 | October 6, 2020 22:00 | 1h 15m | 489 | 247 |
| 7 | November 14, 2020 14:45 | November 16, 2020 16:30 | 2d 1h | 412 | 2,271 |
| 8 | June 24, 2020 06:15 | June 24, 2020 08:15 | 2h | 381 | 435 |
| 9 | June 12, 2020 01:30 | June 12, 2020 09:00 | 7h 30m | 354 | 867 |
| 10 | August 6, 2020 21:45 | August 7, 2020 09:15 | 11h 30m | 340 | 1,082 |
Outage episodes by size in 2020: 19 reached 100+ customers, 3 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 Cherokee County reported on EIA Form 861 for 2020, 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 | 2020 | 4.4 hrs | 1.41 | 89 min | 1.03 |
| Ozarks Electric Coop Corp - (AR) | 2020 | 2.0 hrs | 1.16 | 54 min | 0.64 |
| Cookson Hills Elec Coop, Inc | 2020 | 10.9 hrs | 1.22 | 2.4 hrs | 0.97 |
| Lake Region Electric Coop, Inc - (OK) | 2020 | 4.6 hrs | 1.46 | 85 min | 0.77 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Northeast Oklahoma Electric Co | - | - | - | - | - |
| Tahlequah Public Works 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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 27,388 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. Cherokee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cherokee County, OK annual power outage report, 2020, 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/2020/oklahoma/cherokee-county