WAC 480-96-080

(1) Public participation. Public participation in the development of an integrated system plan must meet the requirements for public participation in a CEIP under WAC 480-100-655, and a large combination utility must:

(a) Provide to its gas customers the same level of participation and notice provided to its electric customers; and

(b) File the required participation plan at the same time as an ISP work plan as described in subsection (4)(c) of this section.

(2) Publicly available information. The large combination utility must make the following information publicly available on its website:

(a) Meeting summaries and materials for advisory group meetings, including materials for future meetings;

(b) A current schedule of advisory group meetings and significant topics to be covered, regularly updated by the company and changes highlighted;

(c) Information on how members of the public may participate in advisory group meetings; and

(d) Advisory group comments about the ISP and its development received to date, including responses communicating how the subject of the input was considered or used. Comments with similar content or input may be consolidated with a single large combination utility response.

(3) Data disclosure.

(a) The large combination utility must file its modeling data inputs with the commission in native format per RCW 19.280.030 (10)(a) and (b) and in an easily accessible format as soon as the inputs are reasonably available during the integrated system plan development process.

(b) The large combination utility must file the outputs, and any associated modeling files with the commission in native format per RCW 19.280.030 (10)(a) and (b) and in an easily accessible format as an appendix to the integrated system plan.

(c) The large combination utility must provide any confidential inputs, outputs, and any associated modeling files in native format and in an easily accessible format to commission staff and interested parties who have signed a confidentiality agreement or nondisclosure agreement.

(d) If the large combination utility's integrated system plan analysis relies on software that is subject to a license fee, the utility must provide licenses for commission staff within three months of filing the work plan. Interested parties may request that the commission order the utility to provide them licenses as part of that party's petition to intervene in the ISP. The commission will address cost recovery for license fees within 60 days of any petition to defer such amounts that may be made by a large combination utility.

(4) Timing.

(a) Unless otherwise ordered by the commission, a large combination utility must file its first, second, and third integrated system plans with the commission on the following timeline: The first ISP by April 1, 2027; the second ISP by January 1, 2030; and the third ISP by January 1, 2033.

(b) Unless otherwise ordered by the commission, a large combination utility must file subsequent ISPs with the commission every four years thereafter.

(c) ISP work plan. No later than 15 months prior to the due date of its integrated system plan or six months before the large combination utility anticipates it will need to finalize any key ISP inputs, whichever is earlier, the large combination utility must file a work plan that includes advisory group input and outlines the content of the ISP. The large combination utility must include the following in its work plan:

(i) The methods for assessing potential resources;

(ii) A proposed schedule of meetings for the large combination utility's advisory groups, and the public, for the ISP;

(iii) A list of significant topics, consistent with WAC 480-100-620, that will be discussed at each advisory group meeting for the ISP;

(iv) The date the ISP will be filed;

(v) A link to the large combination utility's website, updated in a timely manner, to which the utility posts and makes publicly available information related to the ISP, including information outlined in subsection (3) of this section;

(vi) If the large combination utility makes significant changes to the work plan, it must file an updated work plan.

(5) Final ISP approval process. The utility's ISP filing will be set for an open public meeting. On the commission's own motion or at the request of any person who has a substantial interest in the subject matter of the filing, the commission may initiate an adjudication, or if appropriate a brief adjudicative proceeding, to consider the filing. The commission will enter an order approving, rejecting, or approving with conditions the utility's ISP at the conclusion of its review within 12 months of the filing. The commission may, in its order, recommend or require more stringent targets than those the utility proposes.

(a) The commission may adjust or expedite interim and specific target timelines when issuing a decision on an ISP.

(b) Any party requesting the commission make existing targets more stringent or adjust existing timelines has the burden of demonstrating the utility can achieve the targets or timelines in a manner consistent with the requirements of RCW 19.405.060 (1)(c)(i) through (iv).