Will my rate change at the end of my contract? Your rates are locked in for the duration of your term. Upon completion of your term, your rate can change. If your rate changes, you will receive written notification from CPL approximately 45 days prior to the rate change taking effect. This notification will explain what rate plans will be available. Keep in mind that CPLÃ¢â‚¬â„¢s priority is to keep our customers satisfied and remain competitive in the energy market.