Washington Revised Code Title 19. Business Regulations--Miscellaneous § 19.29A.140. Sources and uses of electricity--Report to department

(a) Electricity delivered to retail electric customers;

(b) Purchases or receipts of electricity from declared resources used to serve retail electric customers, by generating facility and fuel type; and

(c) Purchases or receipts of electricity from unspecified sources used to serve retail electric customers.

(a) A retail supplier must report an electricity purchase or receipt as a declared resource if the retail supplier was the direct or indirect owner of the generating facility or acquired the electricity in a transaction, supported by an auditable contract trail, in which the buyer and seller specified the source or set of sources of the electricity.

(b) A retail supplier may assign declared resources and unspecified resources to its retail service for purposes of this section using reasonable methods consistent with its business practices. A retail supplier must identify any change in method from the prior year in its report to the department.

(c) A retail supplier may not report a declared resource as a renewable resource if there exists a renewable energy certificate or other instrument representing the nonpower attributes of the electricity and the retail supplier does not own the renewable energy certificate or instrument.

(d) For an electricity product that is an optional product complying with RCW 19.29A.090, a retail supplier may report as a declared resource any combination of renewable energy certificates and electricity that meets the requirements of RCW 19.29A.090.