County annual report · FIPS 02170
2018 Matanuska-Susitna Borough, AK Power Outage Report
In 2018, customers in Matanuska-Susitna Borough, AK went without power for an average of 8.0 hours, a total of 477K customer-hours (Alaska average 6.2 hours). That ranks 4th worst of 7 Alaska counties and 691st of 2,798 nationally.
Compared with AK, the US and 2017
Coverage line is EAGLE-I's share of Alaska customers tracked each year.
Biggest outages in Matanuska-Susitna Borough, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 30, 2018 17:45 | December 1, 2018 08:45 | 15h | 47,060 | 177K |
| 2 | April 24, 2018 14:00 | April 26, 2018 01:30 | 1d 11h | 13,191 | 46K |
| 3 | December 24, 2018 19:30 | December 24, 2018 23:45 | 4h 15m | 5,192 | 3,596 |
| 4 | July 11, 2018 14:15 | July 11, 2018 17:45 | 3h 30m | 5,167 | 13K |
| 5 | September 24, 2018 19:15 | September 25, 2018 11:30 | 16h 15m | 4,282 | 9,371 |
| 6 | December 12, 2018 14:15 | December 13, 2018 01:00 | 10h 45m | 4,169 | 2,389 |
| 7 | January 4, 2018 20:45 | January 5, 2018 01:45 | 5h | 4,130 | 3,277 |
| 8 | December 15, 2018 01:00 | December 15, 2018 19:15 | 18h 15m | 4,095 | 8,120 |
| 9 | July 25, 2018 02:45 | July 25, 2018 07:30 | 4h 45m | 3,731 | 3,692 |
| 10 | September 12, 2018 08:00 | September 12, 2018 15:00 | 7h | 3,581 | 8,102 |
Outage episodes by size in 2018: 122 reached 100+ customers, 39 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 Matanuska-Susitna Borough reported on EIA Form 861 for 2018, 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 | 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 2018; 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, 2018, 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/2018/alaska/matanuska-susitna-borough