Wat. Code, § 80822.5

(a) Load-serving entities shall have a voluntary option to obtain incremental eligible energy resources from the department beyond the amounts allocated to the load-serving entity from procurement pursuant to paragraph (1) of subdivision (a) of Section 80820, subject to the approval of the commission and a specific determination by the commission that sufficient capacity is available to accommodate the request to obtain amounts beyond those allocated to the load-serving entity.

(b) The department, in consultation with the commission, may establish a schedule for load-serving entities to provide advance notice of an intent to obtain incremental eligible energy resources. Any load-serving entity exercising its option to voluntarily participate shall be obligated to impose a nonbypassable charge on its ratepayers sufficient to fund its allocated share of the costs of incremental eligible energy resources for the duration of the contract, as determined by the department and approved by the commission, if applicable.