Power Out Map
– 0% of Nevada out 0 customers out in California

Power outage history

Nevada County California

45hours

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

8th most of 56 in California 6.9× the national median

Worst outage on record Oct 29, 2019 100% of customers out · 90% back in 3.0 hours
Hours without power, average customer per year 45h / yr State average 6.2 h · national median 6.6 h
Major outages a year 3.3 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 13.0days Feb 26, 2023, over 1% of customers out
Outage hours on storm days 80% Share falling on days with a NOAA storm report here
Worst year 2019 5.0 days without power, average customer
Electricity customers 52,251 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 Nevada'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

2019 was the worst well-recorded year, at 5.0 days for the average customer. Hatched years have a thin record and are left out of the averages.

Nevada, hours without power per customer

NevadaUS median countyCalifornia average
0 50 100 150 ’15 ’17 2.3 ’18 119 ’19 53 ’20 56 ’21 51 ’22 47 ’23 23 ’24 11 ’25 US 6.6 CA 6.2

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
Oct 26, 2019 Wildfire 52,251 100% 4.8 d 3.0 h 2.9M
Dec 31, 2021 No storm report 15,855 30% 10.1 d 5.8 d 2.1M
Dec 26, 2021 Winter storm 32,091 61% 3.7 d 31 h 2.0M
Feb 26, 2023 Winter storm 17,272 33% 13.0 d 47 h 2.0M
Oct 25, 2020 Windstorm 36,536 70% 2.2 d 27 h 1.4M
Oct 23, 2019 Wildfire 41,958 80% 2.0 d 27 h 957k
Oct 10, 2019 Wildfire 44,115 84% 46 h 27 h 902k
Sep 7, 2020 Windstorm 23,105 44% 45 h 5.5 h 673k
Feb 4, 2024 Winter storm 18,388 35% 4.1 d 2.5 d 629k
Oct 9, 2019 Windstorm 43,819 84% 11 h 23 h 442k
Mar 15, 2020 Winter storm 6,079 12% 5.5 d 4.1 d 305k
Oct 9, 2019 No storm report 44,195 85% 12 h 8.2 h 271k

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 +26h 90% by +38h

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

  • Winter storm 34%
  • Wildfire 29%
  • No storm on record 20%
  • Windstorm 15%
  • Heat 0.6%

Who keeps the lights on

Utilities serving Nevada

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Pacific Gas & Electric Co. Investor Owned 273 208 1.63 37.5 5.1M
Truckee Donner P U D CA 1,024 – 2.53 16.1 85k
Liberty Utilities Investor Owned 614 435 3.09 27.6 45k
WAPA-- Western Area Power Administration Federal – – – – –

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 California

Where it is darkest

Hours / yr64+

All California 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 52,251 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 →