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2021 Hawaii Power Outage Report

In 2021, the average Hawaii customer went without power for about 6.0 hours — the 17th worst of any US state that year, 1.1× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
6.0
Peak customers out
27,831
Rank (worst state)
17th
Counties affected
4

Hawaii outages over the decade

Average hours without power per customer, 2021 highlighted.

3.3h20172.9h20184.6h20192.7h20206.0h20212.7h202210.5h20238.6h20245.5h2025

Hardest-hit Hawaii counties in 2021

By peak customers out during the year's worst event.

1Kauai County27,8312Honolulu County27,5253Hawaii County21,3274Maui County6,897

Biggest Hawaii outages of 2021

CountyBeganPeak customers out
Kauai CountyApril 26, 202127,831
Honolulu CountySeptember 23, 202127,525
Honolulu CountyNovember 29, 202126,285
Honolulu CountyMarch 10, 202125,482
Hawaii CountyDecember 5, 202121,327
Honolulu CountyApril 16, 202117,854
Honolulu CountyApril 12, 202116,183
Hawaii CountyJuly 3, 202114,109
Honolulu CountyMarch 15, 202113,957
Honolulu CountyFebruary 2, 202113,277
Hawaii by year:20252024202320222020201920182017
Other states in 2021:LAMIWVTXORMS

Part of the 2021 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.