County annual report · FIPS 40105
2021 Nowata County, OK Power Outage Report
In 2021, customers in Nowata County, OK went without power for an average of 5.8 hours, a total of 16K customer-hours (Oklahoma average 3.2 hours). That ranks 15th worst of 77 Oklahoma counties and 1175th 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 Nowata 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 13:00 | February 16, 2021 19:30 | 6h 30m | 1,604 | 4,789 |
| 2 | February 15, 2021 18:30 | February 15, 2021 20:15 | 1h 45m | 583 | 439 |
| 3 | January 1, 2021 07:30 | January 1, 2021 15:00 | 7h 30m | 469 | 2,662 |
| 4 | November 17, 2021 18:45 | November 17, 2021 20:15 | 1h 30m | 342 | 440 |
| 5 | August 1, 2021 11:15 | August 1, 2021 14:00 | 2h 45m | 263 | 497 |
| 6 | July 10, 2021 22:30 | July 11, 2021 07:45 | 9h 15m | 244 | 342 |
| 7 | January 25, 2021 04:00 | January 25, 2021 20:45 | 16h 45m | 230 | 553 |
| 8 | March 8, 2021 23:00 | March 9, 2021 00:15 | 1h 15m | 172 | 131 |
| 9 | April 10, 2021 00:00 | April 10, 2021 07:30 | 7h 30m | 157 | 345 |
| 10 | December 15, 2021 19:30 | December 15, 2021 22:45 | 3h 15m | 146 | 287 |
Outage episodes by size in 2021: 15 reached 100+ customers, 1 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 Nowata 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 |
| Verdigris Valley Elec Coop Inc | 2013 | 7.1 hrs | 2.35 | 5.0 hrs | 1.98 |
| Northeast Oklahoma Electric Co | - | - | - | - | - |
| Town of South Coffeyville - (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 ÷ 2,678 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. Nowata County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Nowata 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/nowata-county