Power Out Map
– 0% of Carson City out 0 customers out in Nevada

Power outage history

Carson City Nevada

3.1hours

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

8th most of 12 in Nevada 52% below the national median

Worst outage on record Jan 1, 2023 30% of customers out · 90% back in 43 hours
Hours without power, average customer per year 3.1h / yr State average 2.1 h · national median 6.6 h
Major outages a year 0.8 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 4.1days Dec 31, 2022, over 1% of customers out
Outage hours on storm days 81% Share falling on days with a NOAA storm report here
Worst year 2023 11 hours without power, average customer
Electricity customers 30,607 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 Carson City'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 11 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Carson City, hours without power per customer

Carson CityUS median countyNevada average
0 5 10 15 1.4 ’15 2.5 ’16 1.8 ’17 1.4 ’18 1.4 ’19 1.1 ’20 0.9 ’21 1.3 ’22 11 ’23 2.9 ’24 5.0 ’25 US 6.6 NV 2.1

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
Dec 31, 2022 Winter storm 9,209 30% 4.1 d 43 h 282k
Aug 31, 2016 No storm report 11,297 37% 4.2 h 3.5 h 29k
Jun 27, 2015 No storm report 3,454 11% 9.0 h 4.5 h 27k
Jan 13, 2024 Winter storm 2,967 10% 23 h 21 h 20k
Aug 14, 2023 No storm report 2,321 8% 7.5 h 12 h 16k
Nov 15, 2017 Windstorm 4,141 14% 4.2 h 14 h 15k
Oct 26, 2025 Windstorm 4,254 14% 3.5 h 3.0 h 11k
Mar 1, 2024 Winter storm 1,182 4% 17 h – 9.6k
Nov 11, 2024 Windstorm 2,423 8% 6.8 h 6.2 h 9.4k
Jul 8, 2017 Wildfire 4,521 15% 2.8 h 2.5 h 9.0k
Aug 7, 2016 No storm report 4,523 15% 1.8 h 48 min 7.8k
Feb 10, 2019 No storm report 2,795 9% 3.8 h 3.8 h 7.6k

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

  • Winter storm 68%
  • No storm on record 19%
  • Windstorm 8.7%
  • Wildfire 2.8%

Who keeps the lights on

Utilities serving Carson City

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Sierra Pacific Power Co Investor Owned 288 240 2.51 13.7 335k

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.

Next door

Neighbouring counties

Across Nevada

Where it is darkest

Hours / yr64+

All Nevada 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 30,607 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 →