Power Out Map
– 0% of Green Lake out 0 customers out in Wisconsin

Power outage history

Green Lake County Wisconsin

2.8hours

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

40th most of 72 in Wisconsin 57% below the national median

Worst outage on record Jul 29, 2021 38% of customers out · 90% back in 7.0 hours
Hours without power, average customer per year 2.8h / yr State average 3.5 h · national median 6.6 h
Major outages a year 1.8 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 2.3days Sep 2, 2018, over 1% of customers out
Outage hours on storm days 57% Share falling on days with a NOAA storm report here
Worst year 2018 5.1 hours without power, average customer
Electricity customers 16,499 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 Green Lake'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

2018 was the worst well-recorded year, at 5.1 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Green Lake, hours without power per customer

Green LakeUS median countyWisconsin average
0 2 4 6 8 0.7 ’15 ’16 3.2 ’17 5.1 ’18 1.9 ’19 1.2 ’20 4.6 ’21 2.7 ’22 1.6 ’23 3.4 ’24 2.1 ’25 US 6.6 WI 3.5

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 29, 2021 No storm report 6,350 38% 24 h 7.0 h 52k
Aug 28, 2018 Tornadoes 2,008 12% 36 h 31 h 30k
Jul 1, 2017 No storm report 604 4% 38 h – 22k
Jul 23, 2022 Thunderstorms 2,499 15% 24 h 13 h 20k
May 21, 2024 Thunderstorms 6,727 41% 27 h 2.5 h 19k
Apr 14, 2018 Winter storm 2,367 14% 18 h 7.0 h 16k
Jan 14, 2024 Winter storm 5,703 35% 4.2 h 1.8 h 15k
Sep 2, 2018 Flooding 491 3% 2.3 d – 13k
Aug 7, 2019 Thunderstorms 2,939 18% 14 h 11 h 13k
Jun 14, 2017 Thunderstorms 3,978 24% 11 h 4.0 h 9.8k
Aug 11, 2023 No storm report 4,027 24% 6.0 h 3.2 h 9.2k
Apr 15, 2018 Winter storm 2,787 17% 8.5 h 1.5 h 8.4k

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 +10h

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

  • No storm on record 42%
  • Thunderstorms 25%
  • Winter storm 16%
  • Tornadoes 9.9%
  • Flooding 4.9%
  • Tropical storm 0.7%
  • Windstorm 0.6%

Who keeps the lights on

Utilities serving Green Lake

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Wisconsin Power & Light Co Investor Owned 96 75 0.79 18.5 441k
Adams-Columbia Electric Coop Cooperative 108 66 0.87 19.0 36k
City of Princeton WI – – – – 4.8k

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 Wisconsin

Where it is darkest

Hours / yr64+

All Wisconsin 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 16,499 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 →