Ohio Rev. Code Ann. § 5727.031
(B) A person subject to this section shall report the true value of the boilers, machinery, equipment, and any personal property used to supply electricity to others, which shall be the sum of the following:
(C) The property reported under division (B) of this section shall be listed and assessed at an amount equal to the sum of the products determined under divisions (C)(1) and (2) of this section.