County annual report · FIPS 40039
2020 Custer County, OK Power Outage Report
In 2020, customers in Custer County, OK went without power for an average of 29.1 hours, a total of 446K customer-hours (Oklahoma average 27.7 hours). That ranks 13th worst of 77 Oklahoma counties and 289th 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 Custer 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 | October 26, 2020 15:45 | November 4, 2020 21:45 | 9d 6h | 15,245 | 409K |
| 2 | June 4, 2020 23:00 | June 5, 2020 06:00 | 7h | 4,312 | 10K |
| 3 | February 4, 2020 06:15 | February 4, 2020 06:45 | 30m | 1,995 | 998 |
| 4 | November 11, 2020 23:30 | November 12, 2020 03:15 | 3h 45m | 843 | 1,229 |
| 5 | May 21, 2020 17:15 | May 22, 2020 02:15 | 9h | 841 | 1,629 |
| 6 | August 2, 2020 21:45 | August 2, 2020 22:45 | 1h | 815 | 815 |
| 7 | June 9, 2020 20:15 | June 10, 2020 03:45 | 7h 30m | 484 | 390 |
| 8 | May 24, 2020 08:15 | May 24, 2020 09:30 | 1h 15m | 464 | 464 |
| 9 | August 23, 2020 13:30 | August 23, 2020 15:15 | 1h 45m | 462 | 693 |
| 10 | May 31, 2020 05:30 | May 31, 2020 07:30 | 2h | 459 | 804 |
Outage episodes by size in 2020: 43 reached 100+ customers, 3 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 Custer 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 |
| Cimarron Electric Coop | 2020 | 47.4 hrs | 2.45 | 59 min | 0.51 |
| Northfork Electric Coop, Inc | 2018 | 3.7 hrs | - | 2.7 hrs | - |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
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 ÷ 15,341 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. Custer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Custer 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/custer-county