County annual report · FIPS 40069
2023 Johnston County, OK Power Outage Report
In 2023, customers in Johnston County, OK went without power for an average of 21.2 hours, a total of 149K customer-hours (Oklahoma average 14.1 hours). That ranks 8th worst of 77 Oklahoma counties and 378th 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 Johnston 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 | June 18, 2023 03:30 | June 21, 2023 16:00 | 3d 12h | 4,231 | 111K |
| 2 | July 11, 2023 10:00 | July 11, 2023 18:45 | 8h 45m | 1,848 | 5,262 |
| 3 | April 2, 2023 01:00 | April 2, 2023 09:00 | 8h | 1,643 | 3,945 |
| 4 | June 9, 2023 16:30 | June 9, 2023 19:15 | 2h 45m | 1,406 | 2,917 |
| 5 | April 14, 2023 14:45 | April 14, 2023 17:30 | 2h 45m | 962 | 1,909 |
| 6 | June 3, 2023 20:00 | June 4, 2023 02:15 | 6h 15m | 787 | 1,193 |
| 7 | May 7, 2023 03:15 | May 8, 2023 00:15 | 21h | 453 | 2,428 |
| 8 | August 29, 2023 13:00 | August 29, 2023 13:45 | 45m | 416 | 312 |
| 9 | August 26, 2023 23:45 | August 27, 2023 08:30 | 8h 45m | 391 | 1,809 |
| 10 | January 5, 2023 16:15 | January 5, 2023 18:00 | 1h 45m | 345 | 228 |
Outage episodes by size in 2023: 35 reached 100+ customers, 4 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 Johnston 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 |
| Southeastern Electric Coop Inc - (OK) | 2023 | 6.5 hrs | 6.12 | 5.5 hrs | 1.00 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| People's Electric Cooperative | - | - | - | - | - |
| Red River Valley Rrl Elec Assn | - | - | - | - | - |
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 ÷ 7,045 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. Johnston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnston 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/johnston-county