County annual report · FIPS 02020
2024 Anchorage Municipality, AK Power Outage Report
In 2024, customers in Anchorage Municipality, AK went without power for an average of 6.0 hours, a total of 665K customer-hours (Alaska average 6.7 hours). That ranks 5th worst of 7 Alaska counties and 1420th of 2,990 nationally.
Compared with AK, the US and 2023
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Anchorage Municipality, 2024
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 12, 2024 21:00 | August 13, 2024 05:45 | 8h 45m | 47,945 | 41K |
| 2 | August 31, 2024 16:00 | September 1, 2024 04:30 | 12h 30m | 24,488 | 35K |
| 3 | October 12, 2024 03:15 | October 12, 2024 05:15 | 2h | 22,108 | 11K |
| 4 | February 1, 2024 09:30 | February 1, 2024 13:15 | 3h 45m | 19,095 | 12K |
| 5 | February 21, 2024 18:30 | February 25, 2024 19:45 | 4d 1h | 15,008 | 221K |
| 6 | July 5, 2024 01:30 | July 5, 2024 07:30 | 6h | 13,601 | 33K |
| 7 | August 7, 2024 16:30 | August 10, 2024 05:00 | 2d 12h | 9,391 | 33K |
| 8 | November 15, 2024 18:30 | November 16, 2024 01:00 | 6h 30m | 6,463 | 8,767 |
| 9 | August 26, 2024 17:00 | August 28, 2024 05:15 | 1d 12h | 5,560 | 12K |
| 10 | September 25, 2024 14:30 | September 26, 2024 05:00 | 14h 30m | 4,630 | 2,467 |
Outage episodes by size in 2024: 144 reached 100+ customers, 52 reached 1,000+ customers, 6 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 2024, 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 | 2024 | 3.5 hrs | 1.99 | 2.1 hrs | 1.42 |
| Matanuska Electric Assn Inc | 2024 | 4.3 hrs | 2.35 | 4.3 hrs | 2.35 |
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 2024; 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, 2024, 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/2024/alaska/anchorage-municipality