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Home > Industry Data > Illinois Detail Page

Illinois Detail Page

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Detailed Customer Switching Data
Contains data from state PUC's. Updated monthly, the data details customer switching activities by state.
Alternative Suppliers
A complete listing of approved alternative suppliers in states that have undergone deregulation.
Regulated Suppliers
Contains a listing of the electric companies under state PUC jurisdiction.
Regulatory Summary
A quick summary of the regulatory activity in each state.

Regulatory Summary

07/09: The Illinois Commerce Commission's Office of Retail Market Development (ORMD) determined that as of May 31, 2009 more than half the total electric usage of Commonwealth Edison Company and the Ameren Illinois Utilities’ customers is provided by alternative retail electric suppliers. In its second report to the ICC, the ORMD found that 75 percent of all non-residential electrical load in the Commonwealth Edison service area is provided by alternative retail electric suppliers and 97 percent of customers with a demand of over one megawatt are taking service from an alternative supplier. Source: Illinois Commerce Commission

02/07: “The Illinois House is expected to approve a bill establishing a three-year rate freeze for Illinois utilities as soon as next week, the St. Louis Post-Dispatch reported. Illinois State Rep. Dan Beiser, D-Alton, said the rate relief proposal on the table from Ameren CEO Scott Cisel would provide no relief for most of the utility's consumers.

12/06: The Illinois Commerce Commission (ICC) approved a plan to phase-in Ameren and Commonwealth Edison (ComEd) rate hikes. The planned program would allow most Ameren customers the option to reduce their rate hike to a maximum of 14 percent for each of the next three years (2007-2009) and defer the additional amount to a three-year repayment period beginning in 2010. The program would also allow ComEd’s residential customers to reduce their rate hike to a maximum of 10 percent for each of the next three years (2007-2009) and defer the additional amount to a three-year repayment period beginning in 2010.

06/06: Senate Bill 1705 (SB 1705) was enacted to amend the Public Utilities Act. This bill required each electric utility to file a tariff or tariffs which would allow residential retail customers in the electric utility's service area to elect real-time pricing beginning January 1, 2007.

02/06: House Bill 5766 (HB 5766) was put forth to amend the Electric Service Customer Choice and Rate Relief Law of 1997 in the Public Utilities Act. This bill provided that the "mandatory transition period" extend through the date on which the Illinois Commerce Commission had approved declarations of competitive service for all classes of service offered in the service areas of all electric utilities that, on December 31, 2005, served at least 100,000 customers (now, the mandatory transition period extends through January 1, 2007). Furthermore, the bill prohibited the Commission from taking certain actions prior to 2010 with respect to (i) initiating, authorizing, or ordering any change by way of increase or (ii) in approving an application for a merger, imposing a condition requiring any filing for an increase, decrease, or change in or other review of an electric utility's rates or enforcing such a condition.

01/06: The Illinois Commerce Commission approved plans for Ameren and Com Ed to purchase power through a reverse auction. This reverse auction would take place when the transition period ends, currently slated for 2007. In this way, once the transition period ends, the Illinois Commerce Commission would no longer regulate the cost to supply power in the state of Illinois.

9/05: ComEd had requested a two-year extension to continue charging customers transition fees during the deregulation process. The extension was granted, but is scheduled to end December 2006. ComEd is not eligible for further extensions.

1/05: In 2004, the Illinois Commerce Commission (ICC) hosted a series of workshops on the future of deregulated electricity markets called the Post 2006 Initiative. The final report was made available in December 2004. Comments from the executive summary include:

"Illinois has benefited greatly under the framework the General Assembly put in place in 1997. Residential customers have enjoyed one of the largest rate reductions and longest rate freezes in the country. Large customers have also reduced cost through frozen rates and market based pricing. Reliability has also improved dramatically."

"…Staff's main concern relates to the degree of competition in the retail and wholesale electricity marketplace. Other concerns of Staff involve limitations in the transmission system, and concentration among owners of generation available to Illinois and the potential impacts upon prices for power and energy in the post 2006 era."

2/04: In March 2003, Commonwealth Edison (ComEd) agreed to modified a flawed system for setting market prices for electricity in an effort to encourage competition for large commercial customers. In exchange, the utility will be allowed to recoup millions spent on repairing its electricity delivery system. ComEd will be allowed to raise their fixed rate - set in 1994 - in order to encourage competition. The agreement is waiting approval by the Illinois Commerce Commission (ICC).

11/02: The Illinois Commerce Commission issued an interim order to discontinue the current rate for Commonwealth Edison’s large customers with 3 Megawatts of demand or more and charge competitive rates by June 2006. The current rate will not be available to new or returning customers after June 2003. Commonwealth Edison stated that competitive rates would help spur competition in the State.

12/00: The Illinois Commerce Commission (ICC) issued an update on the status of competition in the State. The Illinois electric market first opened in October 1999 to a third of non-residential customers. As of January 1, 2001, all commercial and industrial customers are eligible for retail access to competitive suppliers, and residential customers will become eligible starting in May 1, 2002. The majority of customers who switched to alternative suppliers were in Commonwealth Edison's territory. About 12 percent of ComEd's eligible customers representing about half of the company's load switched to alternative suppliers. Illinois Power had 6.9 percent of customers switch and AmerenCIPS had 6.8 percent. None was recorded for Illinois Light Co. The ICC stated that a lack of competition could be due to a need for more suppliers, electricity shortages, inefficient transmission system, a lack of uniform interconnection standards, and the surrounding states lack of restructuring.

6/98: The ICC issued a ruling that prohibits utility affiliates from exploiting the name, reputation, or logo of the utility in advertising or marketing campaigns. The rule will protect ratepayers from cross-subsidization of utility affiliates.

5/98: The ICC approved Commonwealth Edison's plan to offer nonresidential customers hourly rates under its "Hourly Energy Pricing" program.

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