Clearwater Paper granted intervention in AVISTA energy tariff rider case

Orders

Published April 2nd, 2026

Detected April 3rd, 2026

Summary

The Idaho Public Utilities Commission issued Order No. 36987 granting Clearwater Paper Corporation's petition to intervene in Avista Corporation's application to increase its Schedule 91 energy efficiency tariff rider. The intervention was granted because no party timely opposed the petition. Clearwater Paper is now an official party of record in Case No. AVU-E-26-01.

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What changed

The Idaho Public Utilities Commission granted Clearwater Paper Corporation's petition to intervene in Case No. AVU-E-26-01, where Avista Corporation seeks to adjust its Schedule 91 energy efficiency tariff rider. The Commission found that no party timely opposed the petition and that intervention would serve the purposes described by Rule 74. As a result of this order, Clearwater Paper is now an official party of record entitled to receive all documents filed in the proceeding.

Clearwater Paper should ensure its designated representatives (Peter J. Richardson, Carol Hauge, Randi Johnson, and Jamie McDonald) are properly set up to receive electronic service of all documents filed in this matter. All parties must continue to comply with Commission Rules 71-75 and 222-223, and comply with Order No. 35375. The company should monitor future filings and proceedings in this tariff adjustment case.

What to do next

Ensure designated representatives are set up to receive electronic service of all documents filed in Case No. AVU-E-26-01
Review and comply with Commission Rules 71-75 and 222-223
Monitor future filings and participate in proceedings as an intervenor

Source document (simplified)

Office of the Secretary Service Date April 2, 2026

BEFORE THE IDAHO PUBLIC UTILITIES COMMISSION

IN THE MATTER OF AVISTA ) CASE NO. AVU-E-26-01 CORPORATION'S APPLICATION TO ) INCREASE ITS SCHEDULE 91 ENERGY ) EFFICIENCY TARIFF RIDER ) ORDER NO. 36987 ADJUSTMENT ) )

Clearwater Paper Corporation ("Clearwater") petitioned to intervene in this case on March 19, 2026. This petition was filed pursuant to Idaho Public Utilities Commission Rules of Procedure 71-75, IDAPA 31.01.01.071-.075.

FINDINGS OF FACT

We find that no party timely opposed this Petition to Intervene. We further find that based on the pleadings and other documents filed in this case, intervention by this party would serve the purposes of intervention as described by Rule 74 and should be granted.

ORDER

IT IS THEREFORE ORDERED that the Petition to Intervene filed by Clearwater is granted. IT IS FURTHER ORDERED that all parties comply with all rules of the Commission including Rules 71-75, and 222-223, IDAPA 31.01.01.071-.075, .222-.223. IT IS FURTHER ORDERED that all parties in this proceeding serve all documents hereafter filed in this matter on all parties of record. This Intervenor is represented by the following for purposes of service: Clearwater Paper Corporation: Via Electronic Service Only:

Peter J. Richardson

Richardson Adams PLLC Carol Hauge, VP, Deputy General Counsel 515 N. 27 Street carol.haugen@clearwaterpaper.com th Boise, ID 83702 Randi Johnson, Sr. Corporation Counsel peter@richardsonadams.com randijohnson@clearwaterpaper.com Jamie McDonald, VP, Purchasing jamie.mcdonald@clearwaterpaper.com

ORDER NO. 36987 1

IT IS FURTHER ORDERED that parties comply with Order No. 35375, issued April 21,

Generally, all pleadings should be filed with the Commission electronically and will be deemed timely filed when received by the Commission Secretary. See Rule 14.02. Service between parties should continue to be accomplished electronically when possible. However, voluminous discovery-related documents may be filed and served on CD-ROM or a USB flash drive. DONE by Order of the Idaho Public Utilities Commission at Boise, Idaho this 2 day of nd April 2026. __________________________________________ EDWARD LODGE, PRESIDENT __________________________________________ JOHN R. HAMMOND JR., COMMISSIONER __________________________________________ DAYN HARDIE, COMMISSIONER ATTEST: Monica Barrios-Sanchez Commission Secretary