County annual report · FIPS 02290
2018 Yukon-Koyukuk Census Area, AK Power Outage Report
In 2018, customers in Yukon-Koyukuk Census Area, AK went without power for an average of 0.5 hours, a total of 1,639 customer-hours (Alaska average 6.2 hours). That ranks 7th worst of 7 Alaska counties and 2497th of 2,798 nationally.
Compared with AK, the US and 2017
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Yukon-Koyukuk Census Area, 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 | October 18, 2018 21:00 | October 18, 2018 21:30 | 30m | 683 | 342 |
| 2 | August 15, 2018 23:30 | August 15, 2018 23:45 | 15m | 378 | 95 |
| 3 | December 22, 2018 02:45 | December 22, 2018 03:30 | 45m | 377 | 283 |
| 4 | May 21, 2018 05:15 | May 21, 2018 06:00 | 45m | 367 | 123 |
| 5 | October 16, 2018 21:30 | October 16, 2018 21:45 | 15m | 248 | 62 |
| 6 | October 1, 2018 23:45 | October 2, 2018 00:45 | 1h | 114 | 89 |
| 7 | September 29, 2018 16:45 | September 29, 2018 20:00 | 3h 15m | 110 | 93 |
| 8 | June 7, 2018 18:30 | June 7, 2018 19:45 | 1h 15m | 107 | 83 |
| 9 | August 12, 2018 20:30 | August 13, 2018 02:30 | 6h | 64 | 156 |
| 10 | October 24, 2018 07:00 | October 24, 2018 15:00 | 8h | 22 | 176 |
Outage episodes by size in 2018: 8 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 Yukon-Koyukuk Census Area 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 |
|---|---|---|---|---|---|
| Golden Valley Elec Assn Inc | 2018 | 8.8 hrs | 6.61 | 5.5 hrs | 5.26 |
| Alaska Village Elec 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 67% of Alaska's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,197 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. Yukon-Koyukuk Census Area has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Yukon-Koyukuk Census Area, AK 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/alaska/yukon-koyukuk-census-area