Power outage history

North Slope Borough Alaska

The outage record here is too thin for a reliable yearly average. Raw events are listed below.

Hours without power, average customer per year –h / yr State average 7.4 h · national median 6.6 h

Major outages a year – Peaks over 10% of customers or 50,000 customers

Typical time to restore 90% – Median across major outages, from the peak

Longest single outage –

Outage hours on storm days – Share falling on days with a NOAA storm report here

Worst year –

Electricity customers 3,405 ORNL customer model · 0 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 North Slope'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

North Slope, hours without power per customer

North SlopeUS median countyAlaska average

The record

The biggest outages since 2015

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

No outage reached 1% of customers in the record.

Who keeps the lights on

Utilities serving North Slope

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

Utility	Type	Outage min / yr	Excl. major storms	Outages / yr	Residential ¢/kWh	Customers
Barrow Utils & Elec Coop, Inc	AK	–	–	–	13.9	11k
North Slope Borough Power & Light	AK	–	–	–	17.2	6.5k
TDX North Slope Generating Co	Investor Owned	–	–	–	–	–

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 Alaska

Where it is darkest

Hours / yr64+

All Alaska 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 3,405 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 →