Enrollment Options
Ameren Illinois customers have the following power supply options from which to choose:
RES (Retail Electric Supplier)-supplied power and energy
	Customer receives supply from a retail electric supplier.
Company-supplied power and energy
	Rider BGS (Basic Generation Service)
	A fixed price option for customers with demands less than 1,000 kW.
	Rider BGS-L (Basic Generation Service-Large)
	A fixed price option for customers with demands greater than or equal to 1,000 kW.
	Rider RTP (Real Time Pricing)
	An hourly price option for customers with demands less than 1,000 kW.
	Rider RTP-L (Real Time Pricing-Large)
	An hourly option for customers with demands greater than or equal to 1,000 kW.
	Rider RTP-LI (Real Time Pricing-Large Interruptible)
	The details of this option have not been determined at this time; it is proposed to be an hourly price option with interruptible or curtailment provisions.
Ameren Illinois customers have delivery service from AmerenCILCO, AmerenCIPS or AmerenIP.
Enrollment Options Charts
Review the Enrollment Options Charts to see the available services and timelines (enrollment windows) for Ameren Illinois customers as of Jan. 2, 2007. The charts also show the default options if a customer does not take action within the enrollment window.
Chart:		Customers with demands less than 400 kW.
Chart:		Customers with demands from 400 kW to 999 kW.
Chart:		Customers with demands greater than or equal to 1,000 kW.
Information for Nonresidential Customers
For additional information on supply options for a nonresidential customer, please contact your service company:
				AmerenCILCO		877.677.5740
				AmerenCIPS		800.232.2477
				AmerenIP		800.363.6805