NewSun Energy LLC v. Public Utility Comm.

Court of Appeals of Oregon·Decided September 10, 2026·No. A184078·Unpublished

Opinion

832 September 10, 2026 No. 862

This is a nonprecedential memorandum opinion pursuant to ORAP 10.30 and may not be cited except as provided in ORAP 10.30(1).

IN THE COURT OF APPEALS OF THE STATE OF OREGON

NEWSUN ENERGY LLC,

Petitioner,

v.

PUBLIC UTILITY COMMISSION OF OREGON;

Portland General Electric; PacifiCorp, dba Pacific Power; and Idaho Power Company, Respondents.

Public Utility Commission of Oregon UM2032; A184078

Argued and submitted April 22, 2026. Jonathan Harlan argued the cause for petitioner. On the briefs were Richard G. Lorenz, Casey M. Nokes, Tyler R. Whitney, and Cable Huston LLP.

Jordan Silk, Assistant Attorney General, argued the cause for respondent Public Utility Commission of Oregon. Also on the brief were Dan Rayfield, Attorney General, and Benjamin Gutman, Interim Deputy Attorney General.

Jordan R. Schoonover argued the cause for respondents Portland General Electric Company, PacifiCorp, dba Pacific Power, and Idaho Power Company. Also on the brief were Adam Lowney and McDowell Rackner Gibson PC.

Before Aoyagi, Presiding Judge, Lagesen, Chief Judge, and Egan, Judge.* AOYAGI, P. J. Reversed and remanded.

* Lagesen, Chief Judge, vice Pagán, Judge.

Nonprecedential Memo Op: 352 Or App 832 (2026) 833

AOYAGI, P. J. Petitioner NewSun Energy, Inc. (NewSun)

seeks judicial review of a final order of the Public Utility Commission of Oregon (PUC) approving compliance filings by Idaho Power, PacifiCorp, and Portland General Electric (collectively, Joint Utilities). In Order No. 23-005, the PUC decided to experiment with allowing qualifying facilities (QFs) under the Public Utility Regulatory Policies Act of 1978 (PURPA) and its state counterpart to utilize energy resource interconnection service (ERIS) under certain circumstances , whereas they have historically been required to use network resource interconnection service (NRIS) to connect to utility transmission systems. The order contemplated the possibility of later compliance filings, and the Joint Utilities subsequently made compliance filings. The PUC approved those filings with two modifications. NewSun appeals, raising five assignments of error. As explained below, we conclude that the order on review lacks substantial reason in one regard. We therefore reverse and remand.

Background. The PUC has authority to conduct an investigation that it “believes * * * should be made” into “any matter relating to any public utility or telecommunications utility or other person.” ORS 756.515(1). In this case, the PUC opened a docket to investigate “the treatment of network upgrade costs for QFs,” and it decided to use a contested case proceeding, rather than rulemaking. The initial issue addressed was the scope of the investigation. An administrative law judge (ALJ) ultimately settled on two questions to be addressed. The first was who would be required to pay for network upgrades necessary to interconnect a QF with a host utility. The second was: “Should on-system QFs be 0F1

required to interconnect to the host utility with [NRIS] or should QFs have the option to interconnect with [ERIS] or an interconnection service like ERIS?”

The ALJ conducted extensive proceedings on those two questions. The PUC then issued Order No. 23-005. Its answer to the first question is not relevant to this appeal. As 1 The process adopted contemplated a potential “second phase” of the docket, depending on how the first question was answered. The first question was ultimately answered in such a manner that a second phase did not occur.

834 NewSun Energy LLC v. Public Utility Comm.

to the second question, the PUC took a middle path. The Joint Utilities opposed allowing ERIS connection, and PUC staff recommended against it, while NewSun and other parties advocated for it. The PUC concluded that “QFs should interconnect with NRIS with a limited exception.” Essentially, the PUC felt that it did “not yet have sufficient information to determine that every on-system QF should have a right to choose ERIS without other changes to our construct for administering PURPA,” but it also recognized “the value of more efficiently optimizing the existing transmission system ” and therefore wanted to experiment with allowing “QFs to utilize ERIS under certain circumstances” so as to gain “some experience.” The PUC described its approach as an “experiment” with “voluntary arrangements between QFs and utilities that allow for more efficient use of the existing transmission system at a time of increasing constraints.”

“To facilitate further assessment about how on-system QF interconnection with ERIS would work and what efficiencies may be gained, but with lower risks,” the PUC “adopt[ed] NewSun’s suggestion to allow any on-system QF to choose to be studied for both ERIS and NRIS, at the QF’s expense.” Order No. 23-005 ends with two “orders” regarding the ERIS experiment. First, the PUC directed the Joint Utilities “to develop and make filings, as necessary, to facilitate a QF’s ability to pay for both ERIS and NRIS analysis.” Second, the PUC directed the Joint Utilities “to negotiate a non-standard contract implementing a QF’s decision, after review of both ERIS and NRIS reports, to interconnect with a host utility using ERIS, so long as the QF voluntarily commits to allow curtailment at a level that obviates the need for the Network Upgrades identified in a NRIS report.” A third order regarding the ERIS experiment appears in the “Summary” of Order No. 23-005: The PUC directed the Joint Utilities “to make any filings necessary to allow this process to go forth as described in this order” and “invite[d] petitions to modify any tariffs or contracts, as necessary, if not brought forward by a utility within a reasonable timeframe following this order.”

We affirmed Order No. 23-005 in NewSun Energy LLC v. Public Utility Comm., 337 Or App 79 (2024)

Nonprecedential Memo Op: 352 Or App 832 (2026) 835

(nonprecedential memorandum opinion), rev den, 373 Or 736 (2025). 1F 2

Meanwhile, in the same docket, the Joint Utilities made compliance filings, in which, among other things, they proposed a process for the non-standard contract negotiation contemplated by Order No. 23-005. Under that process, a QF who reviews the ERIS and NRIS reports and decides to use ERIS must negotiate and enter into a power purchase agreement (PPA) with the utility before signing an interconnection agreement. We will refer to that herein as the early-PPA requirement. As we understand it, the early-PPA requirement substantially changes the normal sequence of events, in which interconnection agreement negotiations and PPA negotiations proceed on separate tracks and different commercial readiness milestones govern their timing.

In its comments on the compliance filings, NewSun objected to the early-PPA requirement, largely raising the same points now argued on review. NewSun argued that such a requirement was unnecessary, that it would violate PURPA, that the PUC should open a separate docket to address the issue, that stakeholders had not had the opportunity to fully present arguments or evidence on the issue, and that the requirement would unduly burden QFs by making them agree to the sale of power on particular terms before having knowledge of the complete terms of interconnection.

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NewSun Energy LLC v. Public Utility Comm., (Or. Ct. App. 2026).

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