County annual report · FIPS 40051
2023 Grady County, OK Power Outage Report
In 2023, customers in Grady County, OK went without power for an average of 5.2 hours, a total of 131K customer-hours (Oklahoma average 14.1 hours). That ranks 52nd worst of 77 Oklahoma counties and 1426th of 2,977 nationally.
Compared with OK, the US and 2022
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Grady County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 31, 2023 18:00 | April 2, 2023 00:00 | 1d 6h | 7,643 | 6,596 |
| 2 | August 8, 2023 09:45 | August 8, 2023 17:15 | 7h 30m | 7,157 | 4,288 |
| 3 | July 8, 2023 04:00 | July 11, 2023 00:30 | 2d 20h | 5,333 | 11K |
| 4 | April 19, 2023 22:00 | April 21, 2023 22:30 | 2d | 3,584 | 21K |
| 5 | January 18, 2023 22:45 | January 19, 2023 00:00 | 1h 15m | 2,935 | 3,669 |
| 6 | September 5, 2023 03:00 | September 5, 2023 05:15 | 2h 15m | 2,288 | 4,067 |
| 7 | December 2, 2023 15:00 | December 2, 2023 16:30 | 1h 30m | 1,662 | 2,034 |
| 8 | December 26, 2023 01:15 | December 27, 2023 17:45 | 1d 16h | 1,591 | 1,704 |
| 9 | February 26, 2023 20:00 | February 28, 2023 02:30 | 1d 6h | 1,441 | 4,303 |
| 10 | February 14, 2023 18:15 | February 15, 2023 04:15 | 10h | 1,359 | 2,811 |
Outage episodes by size in 2023: 65 reached 100+ customers, 14 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 2023, 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 | 2023 | 34.0 hrs | 1.98 | 1.8 hrs | 1.10 |
| Cotton Electric Coop, Inc | 2023 | 8.9 hrs | 4.02 | 3.8 hrs | 2.32 |
| Oklahoma Electric Coop Inc | 2023 | 5.5 hrs | 2.50 | 58 min | 0.70 |
| Rural Electric Coop, Inc - (OK) | 2023 | 3.6 hrs | 2.11 | 3.4 hrs | 2.03 |
| 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 2023; 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, 2023, 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/2023/oklahoma/grady-county