County annual report · FIPS 48269
2018 King County, TX Power Outage Report
In 2018, customers in King County, TX went without power for an average of 5.3 hours, a total of 628 customer-hours (Texas average 2.4 hours). That ranks 99th worst of 253 Texas counties and 1000th of 2,798 nationally.
Compared with TX, the US and 2017
Coverage line is EAGLE-I's share of Texas customers tracked each year.
Biggest outages in King County, 2018
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 7, 2018 23:15 | June 8, 2018 18:30 | 19h 15m | 33 | 376 |
| 2 | May 2, 2018 23:15 | May 3, 2018 01:30 | 2h 15m | 32 | 41 |
| 3 | July 30, 2018 10:15 | July 30, 2018 11:45 | 1h 30m | 25 | 32 |
| 4 | April 22, 2018 10:30 | April 22, 2018 14:00 | 3h 30m | 15 | 53 |
| 5 | May 20, 2018 08:30 | May 20, 2018 11:30 | 3h | 15 | 45 |
| 6 | June 30, 2018 17:45 | June 30, 2018 20:15 | 2h 30m | 9 | 23 |
| 7 | July 25, 2018 18:15 | July 25, 2018 20:15 | 2h | 9 | 18 |
| 8 | December 1, 2018 17:15 | December 1, 2018 20:45 | 3h 30m | 5 | 16 |
| 9 | January 5, 2018 01:00 | January 5, 2018 02:45 | 1h 45m | 1 | 2 |
| 10 | March 2, 2018 00:15 | March 2, 2018 00:45 | 30m | 1 | 1 |
Outage episodes by size in 2018: 0 reached 100+ customers, 0 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 King County reported on EIA Form 861 for 2018, 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 |
|---|---|---|---|---|---|
| AEP Texas North Company | 2018 | 3.0 hrs | 1.57 | 2.3 hrs | 1.40 |
| Tri-County Electric Coop, Inc (TX) | 2018 | 67 min | 0.70 | 40 min | 0.56 |
| South Plains Electric Coop Inc | - | - | - | - | - |
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 Texas's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 119 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. King County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), King County, TX annual power outage report, 2018, 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/2018/texas/king-county