39 Miss. Code. R. 1-29- 105 - IRP Schedule and Stakeholder Participation

The following schedule is applicable to the Integrated Resource Plan reporting requirements set forth herein:

1. Within thirty (30) days of the Commission's final approval of this Rule, each electric utility subject to the IRP provisions of this Rule shall file a "Notice of IRP Cycle" in a new Commission docket. The filing of such Notice shall initiate the IRP planning and reporting cycle described herein. Interested parties may move to intervene in a specific electric utility's IRP docket in accordance with Rule 6-121 of the Commission Rules of Practice and Procedure. Interested parties may also proceed with the execution of utility nondisclosure agreements in accordance with Section 108 of this Rule at any time after the filing of a Notice of IRP Cycle.

2. Within thirty (30) days of filing a Notice of IRP Cycle, each electric utility subject to the IRP provisions of this Rule shall notice and conduct an initial public workshop for interested parties to take place in the Commission's hearing room in Jackson, Mississippi. The purpose of the initial workshop is for the electric utility and interested parties to exchange pertinent information concerning the IRP process, such as resource options, planning assumptions and inputs that may be used in the development of a utility's Integrated Resource Plan. Any interested party that attends the public workshop may also provide written feedback to the electric utility and the Commission within twenty-five (25) days following the workshop.

3. No later than forty-five (45) days prior to an electric utility filing its Integrated Resource Plan, the electric utility shall notice and conduct a technical conference for those interested parties that have executed a nondisclosure agreement in accordance with Section 108 of this Rule. The technical conference shall also take place in the Commission's hearing room in Jackson, Mississippi. The purpose of the technical conference is for the electric utility to provide an overview of the process, planning assumptions and inputs ultimately used to develop its Integrated Resource Plan, and to answer questions related thereto. Interested parties that participate in the technical conference may provide additional written feedback to the utility and the Commission within twenty-five (25) days following the technical conference.

4. Electric Utilities subject to the provisions of this Rule shall file their first Integrated Resource Plan in their respective IRP dockets no later than twelve (12) months after issuance of the Commission's Final Order Approving this Rule. Each successive Integrated Resource Plan shall be filed in the same IRP docket no later than three (3) years thereafter. Each successive IRP cycle shall begin with the filing of a Notice of IRP Cycle and shall follow the schedule provided herein.

5. The filed Integrated Resource Plan shall include as a confidential appendix a set of work papers showing the key inputs used by the utility in developing the Plan. Interested parties may obtain copies of these work papers in accordance with the Confidentiality provisions of Section 108 of this Rule.

6. Within sixty (60) days of a utility filing its Integrated Resource Plan, any interested party may file comments addressing the Integrated Resource Plan. The Mississippi Public Utilities Staff ("Public Utilities Staff" or "Staff") shall have eighty (80) days from the IRP filing date to file any comments on the Plan. Initial Data Requests may be served upon the utility within thirty (30) days of the utility filling its Integrated Resource Plan.

7. Utilities may provide a response to any such comments no later than one hundred (100) days after the filing of its Plan.

8. The Commission shall review the Integrated Resource Plan and note any deficiencies within one hundred twenty (120) days after its submittal by the utility. The Public Utilities Staff shall assist the Commission with its review. If the Staff believes the use of consultants is necessary or helpful in its review of any Integrated Resource Plan, the utility shall be required to pay for the cost of such consultants and allowed to recover said costs in rates.

9. The Commission may require the utility to re-evaluate and resubmit its Integrated Resource Plan for the current planning cycle to address any concerns raised in the comments or expressed by the Staff or Commission.

10. Absent deficiencies, the Integrated Resource Plan review is concluded one hundred twenty (120) days after submittal of the Integrated Resource Plan by the utility.

Notes

39 Miss. Code. R. 1-29- 105

Amended 10/8/2018 Amended 12/26/2019