County annual report · FIPS 02068
2019 Denali Borough, AK Power Outage Report
In 2019, customers in Denali Borough, AK went without power for an average of 18.7 hours, a total of 19K customer-hours (Alaska average 4.7 hours). That ranks 1st worst of 7 Alaska counties and 245th of 2,945 nationally.
Compared with AK, the US and 2018
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Denali Borough, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 22, 2019 04:45 | August 22, 2019 11:00 | 6h 15m | 801 | 5,006 |
| 2 | July 20, 2019 19:00 | July 20, 2019 21:45 | 2h 45m | 797 | 2,189 |
| 3 | October 2, 2019 10:00 | October 2, 2019 21:15 | 11h 15m | 761 | 2,236 |
| 4 | July 3, 2019 00:00 | July 3, 2019 00:30 | 30m | 407 | 113 |
| 5 | June 5, 2019 17:30 | June 5, 2019 21:30 | 4h | 406 | 105 |
| 6 | May 30, 2019 17:30 | May 30, 2019 20:30 | 3h | 405 | 619 |
| 7 | June 5, 2019 09:00 | June 5, 2019 09:30 | 30m | 405 | 203 |
| 8 | October 2, 2019 23:00 | October 2, 2019 23:15 | 15m | 404 | 101 |
| 9 | October 10, 2019 15:45 | October 10, 2019 19:45 | 4h | 400 | 503 |
| 10 | September 1, 2019 20:00 | September 2, 2019 12:30 | 16h 30m | 371 | 1,070 |
Outage episodes by size in 2019: 16 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 2019, 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 |
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 2019; 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, 2019, 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/2019/alaska/denali-borough