Read a Sample Bill
The monthly statement you receive from your Ameren Illinois company tells you more than the amount to pay and where to send your payment. Your Ameren Illinois company bill contains detailed information about energy use in your home or business―the numbers that drive your energy costs.    The bill format is designed to be easy to read so you can quickly see how much energy you have used―electric, natural gas or both―and how we calculated your balance due. View a sample Ameren Illinois customer bill and refer to the corresponding descriptions below for a better understanding of your energy bill, learn about common terms that may appear on your bill or download the Understanding Your Energy Bill brochure for more information.
Descriptions
1.	Ameren Illinois Company The name of the Ameren Illinois company providing electric and/or natural gas service for this account.			View Sample Bill
2.	Amount Due/Total Amount Due The amount you owe when payment is received by your Ameren Illinois company on or before the due date.
3.	Due Date The date your payment for this billing period is due. Remember to allow at least five business days if you are mailing your payment, so it will arrive on or before the due date.
4.	Amount Payable After Due Date The amount to be paid if paying after the due date. This amount represents the Amount Due plus a 1.5 percent charge for late payment.
5.	Account Number The unique 10-digit number used to identify your account in our records. Please refer to this number when you wish to discuss your account with us.
6.	Amount Enclosed Enter the amount of your payment in this space, if you choose to mail your payment or pay in person at an authorized pay agent.
7.	Mailing Address The mailing address associated with your home or business account, as it is reflected in our records.
8.	Bill Payment Address The address of the Ameren Illinois company where you should send your payment if you choose to mail it.
9.	Remittance Reminder A reminder to remove the top portion of page 1 of your bill and return it with your payment by mail. Make sure the Ameren Illinois company’s address is showing through the window of the envelope. It is also helpful if you have the remittance portion of your bill with you when paying in person at one of our authorized pay agents.
10.	Scanline Displays a series of numbers needed for your Ameren Illinois company to process your remittance. These numbers are for the company’s internal use only; they do not represent your account number.
11.	Bill Date The date the energy bill was issued.
12.	Service At Displays the address where you receive the utility service detailed in the bill.
13.	Service Defines the units of energy being metered at this location: kilowatt-hours (kWh) of electricity and/or therms of natural gas. A kilowatt-hour (kWh) is the basic unit for measuring the amount of electricity used; it represents 1,000 watts of electricity used in one hour. Ten 100-watt light bulbs burning for one hour will use 1,000 watts, or one kWh of electricity. A therm is the basic unit for measuring your natural gas consumption. One therm of heat energy is equal to 100,000 British thermal units (Btu).
14.	Use/Usage Displays the amount of energy used, in kWh for electricity and therms for natural gas, during the billing period.
15.	Read/RD (Meter Reading) A = Actual reading used to calculate bill. E = Estimated reading used to calculate bill. C = Customer reading used to calculate bill. R = Revised reading used to calculate bill.
16.	Use Per Day A table used to compare the current billing period with the same billing period the previous year, in terms of average temperature and average daily electric or natural gas consumption.
17.	Total Electric Charges The total charges for electricity used during the billing period.
18.	Total Natural Gas Charges The total charges for natural gas consumed during the billing period.
19.	Current Amount Due Amount of all energy and non-energy charges incurred during the current billing period.
20.	Prior Amount Due Amount of all unpaid energy and non-energy charges from previous billing periods.
21.	Total Amount Due Amount of all current and previous charges due this billing period.
22.	Important Information Helpful messages from your Ameren Illinois company are displayed here. Topics include information specific to your account, company or industry news and events, payment options, safety and energy efficiency tips.
23.	Payment Received On Displays the amount of your last payment and the date it was received by your Ameren Illinois company.
24.	Type of Reading Defines the energy being metered at this location (kWh of electricity or therms of natural gas).
25.	Meter Number The manufacturer’s unique serial number used to identify the metering device used at this location.
26.	Service From/To Displays the period of time covered by the current bill in month/day format.
27.	No. (Number of) Days Indicates the number of days in the billing period covered by your current bill. Billing periods may vary by a few days from month to month. So when you compare bills, be sure to compare the number of days in the billing period, as well as the energy used.
28.	Meter Reading Previous/Present Shows the meter reading from the previous billing period and the most recent meter reading. Energy usage for each billing period is calculated by subtracting the previous reading from the present reading.
29.	Reading Difference The difference between the meter reading for the current billing period and the previous meter reading.
30.	Meter Multiplier A meter conversion factor required to calculate the actual amount of energy used.
31.	Therm Factor Converts the basic usage or volume of natural gas used from cubic feet to therms for billing purposes.
32.	Electronic Service Billing Details the types of charges being assessed, the amount of electricity used during the billing period, the applicable rate for the bill account, and the calculations used to arrive at the total for each type of charge for the billing period. “Service From” and “To” dates are also displayed. Applicable state and local taxes related to electricity are outlined. Delivery Service charges cover your Ameren Illinois company’s cost of maintaining the infrastructure that delivers electricity to your door and providing around-the-clock emergency service. Electric Supply charges represent a dollar-for-dollar pass-through of market-based prices. Your Ameren Illinois company does not profit from electric supply charges.
33.	Natural Gas Service Billing Details the types of charges being assessed, the volume of natural gas used during the billing period, the applicable rate for the bill account, and the calculations used to arrive at the total for each type of charge for the billing period. “Service From” and “To” dates are also displayed. Applicable state and local taxes related to natural gas are outlined. Delivery Service charges cover your Ameren Illinois company’s cost of maintaining the infrastructure that delivers natural gas to your door and providing around-the-clock emergency service. Gas Supply charges represent a dollar-for-dollar pass-through of market-based prices. Your Ameren Illinois company does not profit from gas supply charges.
34.	Lighting Charges When applicable, customer bills may contain a special section detailing optional outdoor lighting charges. Usage and rate information and a Lighting Service Activity table are included in this section.
35.	Miscellaneous Charges When applicable, customer bills may contain a special section detailing miscellaneous charges for items such as rentals or new line extension charges, among other things.
Note: Refer to the back of your statement for explanations of common terms.