Power Out Map
– 0% of Maui out 0 customers out in Hawaii

Power outage history

Maui County Hawaii

18hours

without power for the average customer in a typical year, 2018–2025

2.8× the national median

Worst outage on record Aug 8, 2023 19% of customers out · 90% back in 7.0 days
Hours without power, average customer per year 18h / yr State average 7.1 h · national median 6.6 h
Major outages a year 2.3 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 6hours Median across major outages, from the peak
Longest single outage 19.0days Aug 15, 2023, over 1% of customers out
Outage hours on storm days 77% Share falling on days with a NOAA storm report here
Worst year 2023 41 hours without power, average customer
Electricity customers 73,551 ORNL customer model · 3 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Maui's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2023 was the worst well-recorded year, at 41 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Maui, hours without power per customer

MauiUS median countyHawaii average
0 10 20 30 40 50 ’20 ’21 ’22 41 ’23 6.8 ’24 6.6 ’25 HI 7.1 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Aug 8, 2023 Windstorm 14,114 19% 7.0 d 7.0 d 1.3M
Aug 15, 2023 Wildfire 4,155 6% 19.0 d 18.0 d 715k
Apr 1, 2021 Thunderstorms 2,000 3% 13.3 d – 640k
Dec 5, 2021 Flooding 6,897 9% 47 h 2.3 d 147k
Jan 10, 2025 Thunderstorms 22,726 31% 17 h 6.2 h 135k
Aug 23, 2022 No storm report 31,807 43% 7.5 h 5.8 h 134k
Jan 30, 2025 Windstorm 7,306 10% 32 h 29 h 110k
Sep 4, 2023 No storm report 1,702 2% 4.3 d – 88k
Dec 26, 2020 Wildfire 8,942 12% 6.0 h 5.8 h 48k
Apr 23, 2021 No storm report 3,000 4% 11 h – 33k
Dec 7, 2021 No storm report 4,691 6% 7.0 h 14 h 33k
May 8, 2024 No storm report 2,733 4% 11 h – 29k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +4h 90% by +8h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Maui from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Windstorm 35%
  • No storm on record 24%
  • Thunderstorms 19%
  • Wildfire 18%
  • Flooding 3.6%

Who keeps the lights on

Utilities serving Maui

As each utility reports to the Energy Information Administration for its whole Hawaii territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Maui Electric Co Ltd Investor Owned 481 218 2.86 42.0 62k

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Across Hawaii

Where it is darkest

Hours / yr64+

All Hawaii counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 73,551 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →