County annual report · FIPS 02068
2020 Denali Borough, AK Power Outage Report
In 2020, customers in Denali Borough, AK went without power for an average of 19.4 hours, a total of 20K customer-hours (Alaska average 4.2 hours). That ranks 2nd worst of 7 Alaska counties and 446th of 3,019 nationally.
Compared with AK, the US and 2019
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Denali Borough, 2020
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 5, 2020 05:30 | June 5, 2020 09:15 | 3h 45m | 1,144 | 3,515 |
| 2 | June 2, 2020 01:30 | June 2, 2020 06:30 | 5h | 756 | 2,467 |
| 3 | May 25, 2020 14:30 | May 26, 2020 05:30 | 15h | 749 | 2,016 |
| 4 | February 8, 2020 22:00 | February 8, 2020 22:30 | 30m | 557 | 279 |
| 5 | July 29, 2020 20:00 | July 29, 2020 21:45 | 1h 45m | 410 | 513 |
| 6 | July 31, 2020 20:00 | July 31, 2020 20:15 | 15m | 410 | 103 |
| 7 | June 17, 2020 21:00 | June 17, 2020 22:30 | 1h 30m | 408 | 589 |
| 8 | November 25, 2020 19:00 | November 25, 2020 23:30 | 4h 30m | 310 | 216 |
| 9 | January 9, 2020 19:45 | January 9, 2020 21:00 | 1h 15m | 307 | 307 |
| 10 | January 12, 2020 08:45 | January 12, 2020 09:00 | 15m | 307 | 77 |
Outage episodes by size in 2020: 23 reached 100+ customers, 1 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 2020, 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 | 2020 | 6.4 hrs | 3.55 | 5.6 hrs | 3.41 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 68% of Alaska's customers in 2020; 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, 2020, 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/2020/alaska/denali-borough