Power outages in Lake County, IL
We don't have a live outage feed for the utilities serving Lake County yet. Commonwealth Edison Co serves this county.
Right now
No live outage data for Lake County yet.
Commonwealth Edison Cono live feedServes this county, per federal utility records.
i
This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.i
From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.Outage map
County outline
Outage history in Lake County
2014–2025 recordLake County averaged 1.7 significant outages a year in 2023–2025, fewer than most Illinois counties.
In the 12 months to December 2025, there were 1. Half were over within 2.5 hours; the longest lasted 2.5 hours, starting August 17, 2025.
The largest on record began August 11, 2021, with 42,379 customers out at once.
Outages are most common in August.
1.7significant outages a year (2023–2025)
i
At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.3 hourstypical (median) length
i
Half of significant outages here ended sooner than this, and half lasted longer.1.7 dayslongest on record (August 2021)
42,379most customers out at once
| Largest events (start) | Peak out | LastediHow long this area stayed at or above the significant-outage line, not how long any one home was without power. | Customer-hoursiCustomers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours. |
|---|---|---|---|
| August 11, 2021 | 42,379 | 1.7 days | 714,537 |
| August 10, 2020 | 28,909 | 24 hours | 343,240 |
| August 27, 2024 | 23,670 | 13 hours | 166,416 |
| November 26, 2018 | 20,513 | 25 hours | 376,341 |
| February 23, 2023 | 14,719 | 17 hours | 165,426 |
Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).i
From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.
Cities in Lake County
Utilities
- Commonwealth Edison Co no live feed
- All Illinois outages