Conn. Gen. Stat. § 12-80: Property of utility company to be taxed where located.

Real and tangible personal property owned by any company, including a foreign municipal electric utility as defined in section 12-59, employed in the manufacture, transmission or distribution of gas or electricity or both to be used for light, heat or motive power or in the operation of a system of water works for selling or distributing water or both for domestic or power purposes or for two or more of such purposes shall be set in the list of each town where such property is situated on its assessment day and shall be liable to taxation at such percentage of its fair market value as is determined by the assessors under the provisions of sections 12-64 and 12-71. The provisions of this section shall not affect the provisions of section 12-76. Property subject to taxation under the provisions of this section shall not be subject to taxation under the provisions of sections 12-77, 12-78 and 12-79. Railroad companies subject to taxation under the provisions of chapter 210, and express, telephone and cable companies subject to taxation under the provisions of chapter 211, shall not be subject to the provisions of this section.