Conn. Gen. Stat. § 16-24: Classification of service.

The Public Utilities Regulatory Authority shall have power to require each public service company furnishing gas or electricity to establish classifications of service based upon the quantity used, the time when used, the purpose for which used, the duration of use and any other reasonable consideration, and to establish all relevant factors, including rates and charges, that take into consideration competition from alternative services and the interest of all parties concerned.