Breaking down the utility charges on your residential bill

ComEd

For ease of comparison, we list the Price to Compare before we break down the charges on your utility bill. Items A, B and C below reflect the order in which they appear on your ComEd bill. When you select service from a retail electric supplier, the ComEd Electric Supply and Transmission Services Charges (items A and B below) will be replaced with the charges from your new retail electric supplier. Currently, most suppliers will place their charges on your ComEd bill and some suppliers will send you a bill directly (containing ComEd's delivery service charges as well as the supplier's supply and transmission charges).

Price to Compare = Electric Supply Charge + Transmission Services Charge

Combining the electric supply charge and the transmission services charge, the ComEd Price to Compare effective October 2011 through May 2012 is 7.733 cents per kWh. Electric supply charges for June 2012 - May 2013 will not be determined until May 2012.

Price to Compare (in cents per kWh)

	Non-Summer (October 2011 – May 2012)
Non-Space Heat Rate	7.733
Space Heat Rate	5.073

If you are using electricity to heat your home and are currently on ComEd's space heating rate, your Price to Compare includes the space heating electric supply charge of 4.308 cents per kWh and the transmission services charge of 0.765 cents per kWh for a Price to Compare, effective October 2011 through May 2012, of 5.073 cents per kWh.

A. Electric Supply

The electric supply charge is the price you pay per kilowatt-hour ("kWh") for the electricity you use in your home. The price of electric supply is determined by your choice of supplier, whether it be a Retail Electric Supplier or ComEd.

The ComEd price for the electric supply during the summer months (June through September) is different from the ComEd price during the non-summer months (October through May).

Non-Summer (October 2011 – May 2012)
6.968 cents per kWh

Over the course of a year, your average ComEd electric supply charge per kWh is likely somewhere between the summer rate and the non-summer rate. Whether your average electricity supply charge for a 12-month period is closer to the summer rate or closer to the non-summer rate depends on how much electricity you use and during which months you use it. Please take a look at your electric bill or log in to your ComEd account here to see how much electricity you typically use each month over the course of a year.

Attention Electric Space Heating Customers

If you are using electricity to heat your home and are currently on ComEd's space heating rate, your rate for electricity is discounted as shown below:

Non-Summer (October 2011 – May 2012)
4.308 cents per kWh

You will also notice on your bill a monthly "Purchased Electricity Adjustment" that causes the electric supply charges to fluctuate above or below the established electric supply rate from one month to the next. The purpose of the Purchased Electric Adjustment is to "true-up" any difference (over or under) between what ComEd previously paid to acquire electric supply and what ComEd previously charged its customers for that electric supply. When calculating the utility's electric supply price for ComEd's Price to Compare, we do not include a value for the Purchased Electricity Adjustment. You will not be charged for the Purchased Electricity Adjustment when you switch to a Retail Electricity Supplier.

B. Transmission Services Charge

Also included in the Electricity Supply Section on your ComEd bill is the Transmission Services Charge. The transmission services charge is designed to allow the utility to recover costs associated with transmission service. The transmission services charge usually changes annually and will change again in June 2012. The transmission charge for ComEd is currently at 0.765 cents per kWh.

C. Delivery Service Charges

You will pay the charges to deliver the electric supply from the transmission system to your home or business regardless of whether you purchase your electric supply from ComEd or a Retail Electric Supplier. These charges are listed in the Delivery Services section of your ComEd bill.