County annual report · FIPS 02170
2020 Matanuska-Susitna Borough, AK Power Outage Report
In 2020, customers in Matanuska-Susitna Borough, AK went without power for an average of 4.5 hours, a total of 269K customer-hours (Alaska average 4.2 hours). That ranks 5th worst of 7 Alaska counties and 1497th 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 Matanuska-Susitna 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 | March 29, 2020 05:45 | March 31, 2020 12:15 | 2d 6h | 6,537 | 37K |
| 2 | December 26, 2020 14:45 | December 26, 2020 16:00 | 1h 15m | 5,270 | 6,587 |
| 3 | September 7, 2020 02:45 | September 8, 2020 01:15 | 22h 30m | 3,341 | 21K |
| 4 | March 21, 2020 03:00 | March 21, 2020 10:15 | 7h 15m | 3,251 | 4,515 |
| 5 | October 2, 2020 19:15 | October 3, 2020 14:15 | 19h | 3,144 | 12K |
| 6 | September 17, 2020 16:45 | September 18, 2020 10:30 | 17h 45m | 2,218 | 9,257 |
| 7 | December 22, 2020 08:45 | December 23, 2020 04:00 | 19h 15m | 2,206 | 7,469 |
| 8 | June 5, 2020 02:15 | June 5, 2020 07:30 | 5h 15m | 2,161 | 559 |
| 9 | January 24, 2020 23:30 | January 25, 2020 04:15 | 4h 45m | 2,128 | 10K |
| 10 | January 5, 2020 17:30 | January 6, 2020 01:00 | 7h 30m | 2,099 | 3,657 |
Outage episodes by size in 2020: 112 reached 100+ customers, 25 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 Matanuska-Susitna 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 |
|---|---|---|---|---|---|
| Matanuska Electric Assn Inc | 2020 | 4.4 hrs | 1.72 | 4.4 hrs | 1.72 |
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 ÷ 59,763 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. Matanuska-Susitna Borough has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Matanuska-Susitna 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/matanuska-susitna-borough