County annual report · FIPS 02020
2019 Anchorage Municipality, AK Power Outage Report
In 2019, customers in Anchorage Municipality, AK went without power for an average of 2.1 hours, a total of 237K customer-hours (Alaska average 4.7 hours). That ranks 6th worst of 7 Alaska counties and 1991st 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 Anchorage Municipality, 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 16, 2019 10:15 | August 16, 2019 11:30 | 1h 15m | 16,610 | 17K |
| 2 | December 9, 2019 09:45 | December 10, 2019 15:30 | 1d 5h | 9,455 | 29K |
| 3 | August 14, 2019 18:00 | August 15, 2019 05:45 | 11h 45m | 8,492 | 7,695 |
| 4 | November 27, 2019 14:30 | November 30, 2019 07:30 | 2d 17h | 8,116 | 48K |
| 5 | January 29, 2019 17:45 | January 29, 2019 22:30 | 4h 45m | 6,958 | 2,045 |
| 6 | September 18, 2019 09:00 | September 18, 2019 20:30 | 11h 30m | 6,512 | 11K |
| 7 | October 24, 2019 14:00 | October 24, 2019 15:15 | 1h 15m | 4,716 | 1,189 |
| 8 | November 17, 2019 05:45 | November 17, 2019 20:00 | 14h 15m | 2,806 | 9,292 |
| 9 | August 29, 2019 21:00 | August 30, 2019 21:00 | 1d | 2,630 | 2,017 |
| 10 | November 10, 2019 23:30 | November 11, 2019 03:15 | 3h 45m | 2,508 | 6,326 |
Outage episodes by size in 2019: 82 reached 100+ customers, 27 reached 1,000+ customers, 1 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 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 |
|---|---|---|---|---|---|
| Chugach Electric Assn Inc | 2018 | 3.8 hrs | 1.81 | - | - |
| Matanuska Electric Assn Inc | 2018 | 8.5 hrs | 3.38 | 3.7 hrs | 2.24 |
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 ÷ 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, 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/anchorage-municipality