Electricity rates in Marengo, IL
Marengo (7,503 people, McHenry County) is served by Commonwealth Edison Co.. Homes on Commonwealth Edison Co. pay about 19.23¢/kWh, 2% more than the Illinois average.
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Electric companies serving Marengo
| Utility | Type | Rate | Avg bill | Homes (statewide) | Outage min |
|---|---|---|---|---|---|
| Commonwealth Edison Co. | Investor-owned utility | 19.23¢ | $117 | 3.02M | 77 |
Power outages in McHenry County right now
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Outage history in McHenry County
| 2024 | 2025 | |
|---|---|---|
| Outage minutes per customer | 101 | 181 |
| Days with outages | 31 | 30 |
| Most customers out at once | 4,149 (3.4%) | 13,250 (11%) |
| Worst day | 2024-06-23 | 2025-08-17 |
Outage minutes by month, 2025
More outage time than 2024 (101 min). Data: ORNL EAGLE-I county outage snapshots every 15 minutes, covering all utilities in the county.
Nearby cities
ZIP codes: 60152
Frequently asked questions
What is the electricity rate in Marengo?
Most homes in Marengo get power from Commonwealth Edison Co., where residential customers pay an average of 19.23¢/kWh including all charges. The Illinois average is 18.79¢ and the U.S. average 17.99¢.
What is the average electric bill in Marengo?
About $117 a month, based on 606 kWh a month (the average for Commonwealth Edison Co. customers) at 19.23¢/kWh. Homes with electric heat, pools or EVs pay more.
Who is the electric company in Marengo, IL?
Commonwealth Edison Co. serves Marengo.
How often does the power go out in Marengo?
In 2025, customers in McHenry County averaged 3 hr 1 min without power. Outages hit 30 days of the year, and the worst day was 2025-08-17, when 13,250 customers (11%) were out. Source: ORNL EAGLE-I.