County annual report · FIPS 02020
2022 Anchorage Municipality, AK Power Outage Report
In 2022, customers in Anchorage Municipality, AK went without power for an average of 5.2 hours, a total of 573K customer-hours (Alaska average 13.2 hours). That ranks 6th worst of 7 Alaska counties and 1371st of 2,976 nationally.
Compared with AK, the US and 2021
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Anchorage Municipality, 2022
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 21, 2022 07:00 | October 21, 2022 13:45 | 6h 45m | 21,929 | 61K |
| 2 | July 21, 2022 15:45 | July 22, 2022 06:15 | 14h 30m | 12,932 | 4,558 |
| 3 | December 23, 2022 11:15 | December 24, 2022 09:00 | 21h 45m | 7,852 | 36K |
| 4 | June 17, 2022 16:45 | June 18, 2022 06:00 | 13h 15m | 7,723 | 2,360 |
| 5 | December 21, 2022 20:00 | December 22, 2022 17:00 | 21h | 6,472 | 4,537 |
| 6 | September 8, 2022 14:30 | September 9, 2022 09:00 | 18h 30m | 5,559 | 19K |
| 7 | December 12, 2022 00:15 | December 16, 2022 21:30 | 4d 21h | 5,407 | 8,890 |
| 8 | July 19, 2022 08:00 | July 19, 2022 13:45 | 5h 45m | 4,773 | 13K |
| 9 | November 14, 2022 09:15 | November 15, 2022 04:45 | 19h 30m | 4,421 | 15K |
| 10 | July 25, 2022 10:45 | July 26, 2022 02:45 | 16h | 4,340 | 8,660 |
Outage episodes by size in 2022: 133 reached 100+ customers, 49 reached 1,000+ customers, 2 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 Anchorage Municipality reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| Chugach Electric Assn Inc | 2020 | 1.9 hrs | 0.86 | - | - |
| Matanuska Electric Assn Inc | 2022 | 19.2 hrs | 5.44 | 6.3 hrs | 3.27 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Alaska's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 110,430 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. Anchorage Municipality has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Anchorage Municipality, AK annual power outage report, 2022, 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/2022/alaska/anchorage-municipality