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

Power outage history

Honolulu County Hawaii

3.8hours

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

2nd most of 2 in Hawaii 42% below the national median

Worst outage on record Jan 30, 2025 12% of customers out · 90% back in 12 hours
Hours without power, average customer per year 3.8h / yr State average 7.1 h · national median 6.6 h
Major outages a year 0.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 12hours Median across major outages, from the peak
Longest single outage 28hours Jan 16, 2024, over 1% of customers out
Outage hours on storm days 52% Share falling on days with a NOAA storm report here
Worst year 2024 6.8 hours without power, average customer
Electricity customers 308,098 ORNL customer model · 8 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 Honolulu'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

2024 was the worst well-recorded year, at 6.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Honolulu, hours without power per customer

HonoluluUS median countyHawaii average
0 2 4 6 8 2.0 ’17 2.8 ’18 3.8 ’19 2.4 ’20 3.6 ’21 2.5 ’22 4.3 ’23 6.8 ’24 4.3 ’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
Jan 30, 2025 Flooding 38,334 12% 25 h 12 h 342k
Apr 14, 2024 No storm report 15,014 5% 18 h 16 h 262k
Feb 10, 2019 Windstorm 32,353 11% 18 h 6.2 h 233k
Mar 8, 2023 Windstorm 35,085 11% 16 h 13 h 200k
Apr 19, 2023 Windstorm 25,527 8% 12 h 8.0 h 184k
Dec 25, 2019 Thunderstorms 25,846 8% 13 h 8.0 h 180k
Jan 16, 2024 Windstorm 8,603 3% 28 h 27 h 129k
Jan 18, 2021 Thunderstorms 13,023 4% 15 h 9.5 h 105k
Apr 2, 2018 No storm report 18,036 6% 5.5 h 1.5 h 91k
Feb 3, 2021 Thunderstorms 13,277 4% 12 h 7.0 h 89k
Jan 8, 2024 Flooding 3,239 1% 27 h – 86k
Mar 1, 2022 No storm report 14,089 5% 6.5 h 5.8 h 81k

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 +2h 90% by +4h

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 Honolulu from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 48%
  • Windstorm 21%
  • Thunderstorms 15%
  • Flooding 14%
  • Tropical storm 1.6%
  • Wildfire 0.5%

Who keeps the lights on

Utilities serving Honolulu

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
Hawaiian Electric Co Inc Investor Owned 202 154 1.41 40.5 277k

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 308,098 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 →