County annual report · FIPS 40069
2017 Johnston County, OK Power Outage Report
In 2017, customers in Johnston County, OK went without power for an average of 6.0 hours, a total of 42K customer-hours (Oklahoma average 3.2 hours). That ranks 21st worst of 77 Oklahoma counties and 856th of 2,786 nationally.
Compared with OK, the US and 2016
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Johnston County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 15, 2017 06:00 | July 15, 2017 11:00 | 5h | 3,060 | 5,678 |
| 2 | May 19, 2017 13:45 | May 19, 2017 20:30 | 6h 45m | 2,196 | 7,008 |
| 3 | January 20, 2017 20:00 | January 20, 2017 22:15 | 2h 15m | 936 | 559 |
| 4 | July 1, 2017 05:45 | July 1, 2017 07:45 | 2h | 935 | 1,866 |
| 5 | June 4, 2017 01:45 | June 5, 2017 00:00 | 22h 15m | 782 | 6,857 |
| 6 | April 17, 2017 12:15 | April 17, 2017 15:15 | 3h | 746 | 1,538 |
| 7 | March 29, 2017 09:15 | March 29, 2017 16:30 | 7h 15m | 728 | 2,958 |
| 8 | January 12, 2017 15:15 | January 12, 2017 16:00 | 45m | 510 | 383 |
| 9 | July 15, 2017 20:15 | July 16, 2017 00:45 | 4h 30m | 482 | 2,063 |
| 10 | May 28, 2017 01:15 | May 28, 2017 19:15 | 18h | 480 | 2,197 |
Outage episodes by size in 2017: 27 reached 100+ customers, 2 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 2017, 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 | 2017 | 3.0 hrs | 1.33 | 1.7 hrs | 1.08 |
| Southeastern Electric Coop Inc - (OK) | 2017 | 6.4 hrs | 3.00 | 4.6 hrs | 2.14 |
| 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 2017; 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, 2017, 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/2017/oklahoma/johnston-county