Every utility shall furnish reasonably adequate service and facilities at the rates filed with the commission and subject to these rules and the rules of the utility applicable thereto and not otherwise. The energy shall be generated, transmitted, converted and distributed by the utility and utilized, whether by the utility or the customer, in such manner as to obviate so far as reasonably practicable undesirable effects upon the operation of standard services or equipment of the utility, its customers, or other utilities or agencies.
Wis. Admin. Code Public Service Commission PSC 113.0201
As used in these rules the terms "rules of the utility" or "utility's rules" means the rules of the utility on file with the commission