(1) When the annual transactions with a vendor exceed one and one-half percent of total company sales to ultimate customers as reported in the utility's most recent Federal Energy Regulatory Commission (FERC) Form No. 1 (or combined Forms No. 1 and No. 2 for combined utilities), each electric utility must report the total contracts with that vendor for essential utility services specifying the relevant terms of the contract or contracts, along with anticipated associated charges. Information about the FERC Form No. 1 regarding the version adopted and where to obtain it is set out in WAC 480-100-999 (Adoption by reference).

(2) The report of essential service vendors is due one hundred twenty days from the end of each reporting period, whether a fiscal or calendar year.

(3) For each vendor the report must include:

(a) The parties to the contract;

(b) The type of contract;

(c) The essential obligations of each party to the contract;

(d) The length of the contract;

(e) The budgeted annual dollar value of the contract during the reporting period; and

(f) The actual payments for services rendered under the contract during the reporting period.

(4) Essential utility services are those services necessary to provide electric service such as:

(a) Operation or maintenance of electric system infrastructure;

(b) Operation or maintenance of computer systems;

(c) Purchase of electricity for classes of customer service regulated by the commission; and

(d) Construction of electric system infrastructure.

(5) The requirements under this section may be satisfied in whole or in part by cross-reference to the applicable portions of other documents that the utility has on file with the commission.