County annual report · FIPS 40051
2025 Grady County, OK Power Outage Report
In 2025, customers in Grady County, OK went without power for an average of 2.9 hours, a total of 73K customer-hours (Oklahoma average 4.9 hours). That ranks 64th worst of 77 Oklahoma counties and 2075th of 3,000 nationally.
Compared with OK, the US and 2024
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Grady County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 5, 2025 13:00 | April 5, 2025 23:00 | 10h | 2,980 | 3,203 |
| 2 | April 22, 2025 19:30 | April 23, 2025 17:45 | 22h 15m | 2,372 | 1,295 |
| 3 | February 9, 2025 00:15 | February 10, 2025 17:15 | 1d 17h | 2,132 | 8,804 |
| 4 | October 29, 2025 15:00 | October 30, 2025 00:45 | 9h 45m | 1,781 | 503 |
| 5 | June 30, 2025 17:00 | July 1, 2025 04:45 | 11h 45m | 1,686 | 4,039 |
| 6 | March 14, 2025 15:45 | March 16, 2025 02:15 | 1d 10h | 1,680 | 7,943 |
| 7 | November 23, 2025 17:45 | November 24, 2025 20:00 | 1d 2h | 1,626 | 612 |
| 8 | April 29, 2025 21:15 | May 2, 2025 01:15 | 2d 4h | 1,529 | 4,025 |
| 9 | May 25, 2025 07:30 | May 27, 2025 21:30 | 2d 14h | 1,165 | 5,065 |
| 10 | April 26, 2025 01:00 | April 29, 2025 02:30 | 3d 1h | 1,128 | 2,761 |
Outage episodes by size in 2025: 47 reached 100+ customers, 11 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 Grady County reported on EIA Form 861 for 2025, 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 | 2024 | 3.1 hrs | 1.55 | 1.9 hrs | 1.30 |
| Cotton Electric Coop, Inc | 2024 | 5.9 hrs | 3.13 | 3.7 hrs | 2.27 |
| Oklahoma Electric Coop Inc | 2024 | 89 min | 1.18 | 71 min | 1.11 |
| Rural Electric Coop, Inc - (OK) | 2024 | 10.6 hrs | 2.73 | 2.6 hrs | 1.44 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
| City of Marlow - (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 n/a of Oklahoma's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 24,938 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. Grady County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grady County, OK annual power outage report, 2025, 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/2025/oklahoma/grady-county