(1) Each retail supplier shall provide to its existing and new retail electric customers its annual fuel mix information by generation category as required in RCW
19.29A.060.
(2) Disclosures required under subsection (1) of this section shall be provided through an electricity product content label presented in a uniform format.
(3) Except as provided in subsection (4) of this section, each retail supplier shall provide the electricity product content label:
(a) To each new retail electric customers at the time service is established;
(b) To each existing retail electric customer, delivered with the customer's billing statement or as a separately mailed publication, not less than annually;
(c) On the retail supplier's publicly accessible website; and
(d) As part of any marketing material, in electronic, paper, written, or other media format, that is used primarily to promote the sale of any specific electricity product being advertised, contracted for, or offered for sale to current or prospective retail electric customers. For the purposes of this subsection, an electric product does not include conservation programs, equipment or materials, or equipment or materials related to transportation electrification.
(4) Each small utility and mutual light and power company shall provide the electricity product content label not less than annually through a publication that is distributed to all its retail electric customers, publicly display the electricity product content label at its main business office, and provide the electricity product content label on its publicly accessible website. If a small utility or mutual company engages in marketing a specific electric product new to that utility it shall provide the electricity product content label described in subsection (3)(d) of this section.