County annual report · FIPS 40029
2021 Coal County, OK Power Outage Report
In 2021, customers in Coal County, OK went without power for an average of 2.2 hours, a total of 7,659 customer-hours (Oklahoma average 3.2 hours). That ranks 61st worst of 77 Oklahoma counties and 2139th 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 Coal 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 | June 18, 2021 02:30 | June 18, 2021 07:00 | 4h 30m | 1,708 | 929 |
| 2 | August 5, 2021 18:30 | August 5, 2021 18:45 | 15m | 630 | 158 |
| 3 | June 13, 2021 19:30 | June 14, 2021 02:45 | 7h 15m | 330 | 2,028 |
| 4 | February 18, 2021 00:15 | February 18, 2021 01:45 | 1h 30m | 192 | 232 |
| 5 | October 12, 2021 08:30 | October 12, 2021 10:30 | 2h | 181 | 362 |
| 6 | October 27, 2021 19:30 | October 27, 2021 22:15 | 2h 45m | 154 | 197 |
| 7 | August 3, 2021 13:15 | August 3, 2021 13:30 | 15m | 152 | 38 |
| 8 | June 15, 2021 18:00 | June 15, 2021 19:15 | 1h 15m | 110 | 138 |
| 9 | January 25, 2021 18:45 | January 25, 2021 21:00 | 2h 15m | 107 | 153 |
| 10 | October 13, 2021 21:30 | October 13, 2021 22:00 | 30m | 95 | 25 |
Outage episodes by size in 2021: 9 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 Coal 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 |
| Southeastern Electric Coop Inc - (OK) | 2021 | 7.0 hrs | 1.50 | 3.5 hrs | 1.40 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| People's 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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,441 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. Coal County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Coal 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/coal-county