(220 ILCS 5/16-119)
An electric utility or an alternative retail electric
supplier may establish a term of service, notice period for
terminating service and provisions governing early termination
through a tariff or contract. A customer may change its
supplier subject to tariff or contract terms and conditions.
Any notice provisions; or provision for a fee, charge or
penalty with early termination of a contract; shall be
conspicuously disclosed in any tariff or contract. A customer
shall remain responsible for any unpaid charges owed to an
electric utility or alternative retail electric supplier at
the time it switches to another provider.
(Source: P.A. 90-561, eff. 12-16-97.)