County annual report · FIPS 40051
2019 Grady County, OK Power Outage Report
In 2019, customers in Grady County, OK went without power for an average of 4.8 hours, a total of 119K customer-hours (Oklahoma average 5.0 hours). That ranks 38th worst of 77 Oklahoma counties and 1142nd of 2,945 nationally.
Compared with OK, the US and 2018
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Grady County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 8, 2019 11:45 | January 8, 2019 22:00 | 10h 15m | 6,844 | 3,480 |
| 2 | May 25, 2019 02:15 | May 28, 2019 19:30 | 3d 17h | 3,498 | 13K |
| 3 | May 17, 2019 02:45 | May 17, 2019 05:45 | 3h | 3,137 | 6,187 |
| 4 | July 29, 2019 19:15 | July 29, 2019 22:30 | 3h 15m | 3,137 | 6,768 |
| 5 | July 30, 2019 19:30 | July 30, 2019 21:30 | 2h | 3,129 | 3,468 |
| 6 | November 10, 2019 14:45 | November 12, 2019 02:45 | 1d 12h | 2,710 | 8,172 |
| 7 | July 3, 2019 07:30 | July 3, 2019 15:00 | 7h 30m | 2,694 | 683 |
| 8 | May 18, 2019 12:30 | May 19, 2019 03:30 | 15h | 2,545 | 8,714 |
| 9 | June 19, 2019 06:15 | June 21, 2019 21:30 | 2d 15h | 2,388 | 9,057 |
| 10 | May 19, 2019 15:00 | May 19, 2019 20:15 | 5h 15m | 2,263 | 1,861 |
Outage episodes by size in 2019: 74 reached 100+ customers, 19 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 2019, 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 | 2018 | 2.1 hrs | 1.34 | 1.7 hrs | 1.17 |
| Cotton Electric Coop, Inc | 2018 | 3.6 hrs | 1.91 | 3.3 hrs | 1.84 |
| Oklahoma Electric Coop Inc | 2018 | 1.5 hrs | 1.63 | 1.5 hrs | 1.63 |
| Rural Electric Coop, Inc - (OK) | 2018 | 6.8 hrs | 3.42 | 3.9 hrs | 2.49 |
| 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 90% of Oklahoma's customers in 2019; 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, 2019, 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/2019/oklahoma/grady-county