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

Power outage history

Lassen County California

0.6hours

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

91% below the national median

Worst outage on record Jul 10, 2022 2% of customers out · lasted 15 hours
Hours without power, average customer per year 0.6h / yr State average 6.2 h · national median 6.6 h
Major outages a year 0.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% – Median across major outages, from the peak
Longest single outage 18hours Dec 15, 2021, over 1% of customers out
Outage hours on storm days 28% Share falling on days with a NOAA storm report here
Worst year 2025 1.0 hours without power, average customer
Electricity customers 15,440 ORNL customer model · 2 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 Lassen'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

2025 was the worst well-recorded year, at 1.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Lassen, hours without power per customer

LassenUS median countyCalifornia average
0 2 4 6 8 ’18 ’19 0.2 ’20 ’21 ’22 ’23 ’24 1.0 ’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
Jul 10, 2022 No storm report 367 2% 15 h – 5.6k
Aug 9, 2023 No storm report 368 2% 13 h – 4.9k
Dec 15, 2021 Winter storm 232 2% 18 h – 4.1k
Aug 1, 2025 No storm report 414 3% 14 h – 4.0k
Aug 26, 2025 No storm report 664 4% 10 h – 3.3k
Nov 5, 2025 Windstorm 767 5% 4.2 h – 3.0k
Jun 28, 2022 No storm report 367 2% 6.2 h – 2.3k
Dec 1, 2022 Winter storm 382 2% 6.2 h – 2.2k
Sep 9, 2025 No storm report 497 3% 4.2 h – 2.1k
Oct 9, 2022 No storm report 367 2% 5.2 h – 1.9k
Dec 16, 2021 Winter storm 222 1% 11 h – 1.8k
Dec 17, 2021 No storm report 159 1% 10 h – 1.6k

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

  • No storm on record 72%
  • Winter storm 20%
  • Windstorm 6.3%
  • Wildfire 1.7%

Who keeps the lights on

Utilities serving Lassen

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
Lassen Municipal Utility District CA 203 203 2.34 15.7 71k
Plumas-Sierra Rural Elec Coop CA 14,622 – – 18.7 58k
Surprise Valley Electrification Cooperative – – – 13.5 2.8k
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 15,440 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 →