
Commonwealth Edison, commonly known as ComEd, is the largest electric utility company in Illinois. ComEd has been the primary electric delivery services company for Northern Illinois for over a century, currently serving more than 3.8 million customers. However, Illinois residents can choose their power provider, and there are alternative retail electric suppliers available, such as Nordic Energy. ComEd has faced criticism for its involvement in a bribery scandal and for its efforts to influence legislation in its favour, such as the mandatory installation of Wireless Smart Meters.
| Characteristics | Values |
|---|---|
| Is ComEd the only electric company in Illinois? | No, ComEd is not the only electric company in Illinois. ComEd is the largest electric utility in Illinois and the primary electric provider in Chicago and much of Northern Illinois. However, there are alternative retail electric suppliers and alternative gas suppliers that Illinois residents can choose from. |
| Number of customers served by ComEd | ComEd serves approximately 3.8 million customers across Northern Illinois, which is about 70% of the state's population. |
| Territory covered by ComEd | ComEd's service territory stretches from Iroquois County on the south to the Wisconsin border on the north and from the Iowa border on the west to the Indiana border on the east. |
| ComEd's parent company | ComEd is a unit of the Chicago-based Exelon Corporation, one of the nation's largest electric and gas utility holding companies. |
| ComEd's role | ComEd is an energy delivery company that manages more than 90,000 miles of power lines. It does not own power plants or produce electricity. |
| ComEd's investments in technology | ComEd has invested in smart grid technology, which aims to modernize the electric grid in Illinois by improving electric lines, installing smart meters, and upgrading infrastructure. |
| ComEd's pricing plans | ComEd offers different supply plans, including stable-rate and variable-rate plans. |
| Competition and consumer protection | Illinois has passed the Home Energy Affordability and Transparency (HEAT) Act to protect consumers from misleading marketing and unfair pricing practices in the energy market. |
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What You'll Learn
- Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois
- ComEd does not own power plants or produce electricity, it is an energy delivery company
- ComEd customers can choose their electric supplier
- ComEd has been involved in bribery and corruption scandals
- ComEd customers can choose alternative energy suppliers like Nordic Energy

Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois
ComEd does not own power plants or produce electricity. Instead, it is an energy delivery company, managing over 90,000 miles of power lines across an 11,400-square-mile territory. The company's service area covers a large portion of Northern Illinois, stretching from Iroquois County in the south to the Wisconsin border in the north, and from the Iowa border in the west to the Indiana border in the east.
ComEd has been the primary electric delivery services company in Northern Illinois for over a century. In 1967, Commonwealth Edison acquired the Rockford-based Central Illinois Electric and Gas Company, further expanding its service territory. Today, ComEd continues to invest in its infrastructure and technology, aiming to provide safe and reliable electric service to its customers.
In addition to its core business, ComEd has been involved in several initiatives and programs. The company has supported education, environment, arts, and community development efforts, with employees volunteering at local non-profit organizations. ComEd has also made significant investments in smart grid technology, aiming to modernize Illinois's electric grid and improve the efficiency and reliability of its power delivery.
While ComEd is the largest electric utility in Illinois, it is not the only one. Illinois residents and businesses have the option to choose their power provider, and several alternative suppliers, such as Nordic Energy, offer their services in the state. These alternative suppliers introduce competition and drive innovation, providing customers with more choices and potential benefits.
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ComEd does not own power plants or produce electricity, it is an energy delivery company
Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois, serving approximately 3.8 million customers across Northern Illinois, which equates to 70% of the state's population. ComEd is a unit of the Chicago-based Exelon Corporation, one of the largest electric and gas utility holding companies in the US.
ComEd does not own power plants or produce electricity. It is an energy delivery company, managing more than 90,000 miles of power lines across an 11,400-square-mile territory. ComEd's service territory stretches from Iroquois County in the south to the Wisconsin border in the north, and from the Iowa border in the west to the Indiana border in the east.
ComEd has been the primary electric delivery services company for Northern Illinois for over 100 years. In 1907, Commonwealth Edison was one of Thomas Edison's small local companies, and it has since grown into the modern-day ComEd. In 1994, ComEd reorganized as a holding company, Unicom Corporation, with ComEd as its leading subsidiary. In 2000, UniCom merged with Philadelphia-based electric company PECO Energy to form Exelon.
ComEd customers can choose their electric supplier, and they will still receive a bill from ComEd as the utility company is responsible for delivering the power. ComEd has invested heavily in its electrical transmission and distribution system, and in 2016, the company invested $2.6 billion in its "Smart Grid" plan to modernize the electric grid in Illinois. This included improving electric lines, installing smart meters, and upgrading outdated infrastructure.
ComEd is not the only electric company in Illinois, and there are alternative retail electric suppliers and alternative gas suppliers available to Illinois residents and businesses.
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ComEd customers can choose their electric supplier
Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois. It is the primary electric provider in Chicago and Northern Illinois, serving around 3.8 million customers. ComEd manages more than 90,000 miles of power lines and does not own power plants or produce electricity. Instead, it is an energy delivery company.
If you are a ComEd customer, you can switch to an alternative supplier such as Nordic Energy, which serves every county in Illinois. When choosing an alternative supplier, it is essential to be cautious. Some dishonest sales representatives may sign you up for an offer without your permission, so it is important not to give out your electric bill or account number unless you are sure you want to switch. Ask the company about their rates and how they compare to the utility's prices. Ask if it is a fixed rate and how long it will last, as some low prices may increase after a few months, causing your bill to skyrocket.
If you choose an alternative supplier, you will still receive a bill from ComEd, as they are responsible for delivering the power to you. A different company and its price will be listed on the "supply" section of your bill. ComEd is also the company to contact in the event of a power outage.
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ComEd has been involved in bribery and corruption scandals
Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois. It is the primary electric provider in Chicago and Northern Illinois, serving around 3.8 million customers, or 70% of the state's population. ComEd is a unit of the Chicago-based Exelon Corporation, one of the largest electric and gas utility holding companies in the US.
ComEd has also faced criticism and opposition for its efforts to promote and implement smart grid technology in Illinois. ComEd lobbyists wrote and pushed for a law mandating Wireless Smart Meter installations for all Illinois customers. This move was met with persistent opposition from the Attorney General, AARP, and informed Illinois citizens due to concerns about the lack of choice and potential privacy implications. ComEd spent around $16 million to convince the General Assembly to override Governor Quinn's veto of the bill. The subsequent election of Governor Rauner resulted in another bill favoring ComEd, removing the right of citizens to opt out of the Wireless Smart Meter installation.
In addition to the legal and ethical concerns surrounding the smart grid technology rollout, ComEd has also been associated with misleading marketing practices and unfair pricing. Illinois residents have reported issues with dishonest sales representatives signing them up for offers without their explicit permission. The state has also experienced problems with alternative suppliers offering variable rates that can lead to significantly higher electricity bills. In response to these issues, Illinois passed the Home Energy Affordability and Transparency (HEAT) Act in 2019 to protect consumers from unfair practices, such as automatic contract renewals with increasing prices and unclear marketing materials.
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ComEd customers can choose alternative energy suppliers like Nordic Energy
Commonwealth Edison, commonly known as ComEd, is the largest electric utility in Illinois, serving more than 3.8 million customers across the northern part of the state. ComEd is the primary electric provider in Chicago and much of Northern Illinois. However, ComEd customers are not restricted to the company as their electric supplier.
Illinois electricity customers serviced by ComEd can choose their electric supplier. ComEd customers can select alternative energy suppliers like Nordic Energy, which offers fixed pricing, a rewards program, and excellent service. ComEd customers can also consider other alternative suppliers like Hudson Energy, a Retail Electric Supplier (RES).
ComEd customers who opt for an alternative energy supplier will still receive a bill from ComEd because the utility delivers the power. ComEd continues to be responsible for repairing power outages and delivering electricity. The alternative supplier and its price will be listed on the "supply" section of the ComEd bill.
When considering an alternative energy supplier, ComEd customers should be cautious and ask relevant questions to avoid misleading marketing and bad deals. They should also carefully read the fine print before signing up. Additionally, ComEd customers should be aware of the protections provided by the Home Energy Affordability and Transparency (HEAT) Act, passed in 2019 to address issues in the market.
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Frequently asked questions
No, ComEd is not the only electric company in Illinois. While ComEd is the largest electric utility in Illinois and the primary electric provider in Chicago and Northern Illinois, there are alternative retail electric suppliers and alternative gas suppliers available, such as Nordic Energy.
ComEd provides electric service to more than 3.8 million customers across Northern Illinois, which is approximately 70% of the state's population.
Yes, in Illinois, you can choose your power provider. If you choose another supplier, you will still receive a bill from ComEd as they are responsible for delivering the power to you, and you will need to contact them in the event of a power outage.











































