County annual report · FIPS 02068
2017 Denali Borough, AK Power Outage Report
In 2017, customers in Denali Borough, AK went without power for an average of 4.1 hours, a total of 4,178 customer-hours (Alaska average 1.8 hours). That ranks 1st worst of 7 Alaska counties and 1090th of 2,786 nationally.
Compared with AK, the US and 2016
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Denali Borough, 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 | May 4, 2017 05:45 | May 4, 2017 06:00 | 15m | 706 | 177 |
| 2 | June 14, 2017 01:00 | June 14, 2017 02:45 | 1h 45m | 663 | 407 |
| 3 | June 9, 2017 01:15 | June 9, 2017 04:00 | 2h 45m | 377 | 629 |
| 4 | September 18, 2017 19:45 | September 18, 2017 20:30 | 45m | 375 | 208 |
| 5 | September 21, 2017 17:15 | September 21, 2017 17:30 | 15m | 374 | 94 |
| 6 | September 22, 2017 00:00 | September 22, 2017 00:15 | 15m | 373 | 93 |
| 7 | October 26, 2017 17:45 | October 26, 2017 18:00 | 15m | 365 | 91 |
| 8 | October 27, 2017 22:00 | October 27, 2017 22:30 | 30m | 365 | 183 |
| 9 | November 26, 2017 23:45 | November 27, 2017 00:30 | 45m | 272 | 136 |
| 10 | December 11, 2017 15:30 | December 11, 2017 20:45 | 5h 15m | 147 | 718 |
Outage episodes by size in 2017: 11 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 Denali Borough 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 |
|---|---|---|---|---|---|
| Golden Valley Elec Assn Inc | 2017 | 3.8 hrs | 3.12 | 3.1 hrs | 2.94 |
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 Alaska's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,014 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. Denali Borough has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Denali Borough, AK 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/alaska/denali-borough