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Service Area: Illinois

 Where We Operate

About Switching in Illinois
Retail electricity providers must be licensed by the Illinois Commerce Commission. To be eligible to switch, your company must be located in one or more of these utilities' service territories:
  • Commonwealth Edison Company (CEC)
  • Ameren [includes AmerenIP; AmerenCILCO; AmerenCIPS]
The first step in switching your business' electricity service is to complete a Designation of General Account Agent form which allows Constellation NewEnergy to gather historical electricity usage data from your utility. This data is necessary to analyze your power consumption patterns and to develop a proposal that is customized to the needs of your business.

You will then sign a retail Electricity Supply Agreement which states the specific product you’ll be receiving, the rate for electric service, and the duration of the agreement. After this agreement is signed, the enrollment process is simple. Our local operations team will work to transfer your electricity accounts from the utility to our service in one seamless transition. Customers are generally switched to a competitive supplier on their next meter read/cycle date. The utility must receive and accept notification to switch at least 7 days prior to the cycle date.

  authorization_IL_comed_gaa.pdf
Affiliations

  Illinois Hotel & Lodging Association (IHLA)
  Illinois Manufacturer's Association (IMA)
  Chicago District Golf Association (CDGA)
  Building Owners and Managers Association - Suburban (BOMA-Suburban)
  Illinois Association of Park Districts (IAPD)
  Illinois Petroleum Marketers Association (IPMA)
  Greater O’Hare Association (GOA)
  Tool & Manufacturing Association (TMA)
 
Products Offered in Illinois  

MarketLock
Fixed Price Solutions

MarketFlex
Block Plus Index Solutions
Flexible Index Solutions

NewAnswers
Renewable Energy
Load Response

Tailored Energy Solutions
Contact Us  
We have been in the retail electricity supply business since the advent of open markets in Illinois. Our full-service sales, analysis and customer care teams are based locally to provide superior products and service to your business.

Electricity:
Great Lakes Region
550 W. Washington Blvd., Suite 300
Chicago, IL 60661
Phone: 312-704-9200
Fax: 888-829-8750
E-mail
Sales: CNESalesIL@constellation.com

Natural Gas:
100 N Lincoln Way, Suite B
North Aurora, IL 60542
Phone: 630-264-6600
Fax: 630-264-6611
E-mail
Sales: ILgassales@constellation.com
Customer Care: ILgascare@constellation.com
External Resources  
Illinois Commerce Commission
www.icc.illinois.gov/home.aspx
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