Announcement • Aug 19
Portland General Electric Company Submits Tariff Filing to Federal Energy Regulatory Commission
Portland General Electric Company has submitted proposed revisions to its Open Access Transmission Tariff (OATT) related to Portland General’s anticipated participation in the California Independent System Operator (CAISO) Extended Day-Ahead Market (EDAM) to the Federal Energy Regulatory Commission. The proposed OATT revisions represent a just and reasonable, and not unduly discriminatory approach for participating in the EDAM and are consistent with or superior to the existing proforma OATT. As accepted by the Commission on August 29, 2025, Portland General is scheduled to begin participating in the EDAM on or about October 1, 2026. Accordingly, Portland General respectfully requests that the Commission issue an order by September 30, 2026 and grant an effective date of October 1, 2026, to provide certainty to Portland General and its customers ahead of EDAM commencement for Portland General. Portland General proposes to add a new Appendix 2 to Attachment P consisting of a pro forma EDAM Load Serving Entity Scheduling Coordinator Services Agreement template (LSE SC Services Agreement). The LSE SC Services Agreement establishes the contractual framework under which Portland General, in its capacity as an EDAM Entity Scheduling Coordinator, will provide cost-based scheduling coordinator services to participating Load Serving Entities within the Portland General Balancing Authority Area and support implementation of Attachment P’s EDAM provisions. Portland General submits for Commission acceptance a pro forma LSE SC Services Agreement for use in connection with Load Serving Entity participation in EDAM, to be incorporated as Appendix 2 to the Portland General OATT. As noted in Attachment P Section 3.2, unless and until an EDAM LSE has elected to be represented by its own Scheduling Coordinator and has satisfied CAISO’s requirements to that end, Portland General will serve as the EDAM LSE’s Scheduling Coordinator. The LSE SC Services Agreement implements the requirements of Attachment P of Portland General’s OATT under which such Load Serving Entities within the Portland General Balancing Authority Area participating in EDAM must designate Portland General as their Scheduling Coordinator for specified EDAM load scheduling activities. The LSE SC Services Agreement establishes the terms and conditions under which Portland General will provide Scheduling Coordinator services on behalf of participating EDAM Load Serving Entities. The LSE SC Services Agreement incorporates and is intended to operate consistently with the CAISO Tariff, Portland General’s OATT, and related CAISO Markets business practice requirements. It includes provisions addressing security, term and termination, billing and payment, confidentiality, records retention, dispute resolution, and other customary contractual matters. The agreement further provides for the pass-through of applicable market-related charges, credits, penalties, and other costs that are otherwise the responsibility of the EDAM LSE, consistent with the OATT, governing market rules, and cost-causation principles. In addition, to lower unnecessary barriers to market participation for EDAM LSEs, for the first year of Portland General’s EDAM participation, Portland General will not charge EDAM LSEs for any administrative costs associated with the scheduling coordinator services provided under the agreement. The proposed LSE SC Services Agreement will facilitate efficient implementation of EDAM participation by Load Serving Entities within the Portland General Balancing Authority Area while ensuring that Portland General can satisfy its OATT-based obligations and obligations under the CAISO OATT as an EDAM Entity and Scheduling Coordinator. The LSE SC Services Agreement is just and reasonable and not unduly discriminatory because it provides a standardized contractual framework that supports the administration of EDAM scheduling and settlement functions and promotes consistent treatment of similarly situated customers under Attachment P of the Portland General OATT. For ease of administration, upon Commission acceptance, Portland General intends for this LSE SC Services Agreement to be noted on Portland General’s Electric Quarterly Reports consistent with Commission precedent. In accordance with the Commission’s eTariff regulations, Portland General submits an eTariff filing package consisting of the following documents with this filing: This Transmittal Letter; Tariff records in eTariff format; Attachment A – clean proposed OATT Attachment P Appendix 2. A copy of the filing is being posted on OASIS and provided to each customer under Portland General’s OATT, as well as to the Oregon Public Utility Commission. Portland General respectfully requests that the Commission issue an order on this filing on or by September 30, 2026, and grant waiver of the Commission's prior notice requirements to permit the tariff revisions to become effective on October 1, 2026. Good cause exists to grant waiver of the Commission’s 60-day prior notice requirement, as noted above, Portland General will not charge for scheduling coordinator services for the first year of Portland General’s EDAM participation, and, in any event, any market participation costs passed-through under this agreement are only those for which the EDAM LSE would otherwise already be responsible. In addition, as explained in this filing, Portland General anticipates that EDAM operations will commence on October 1, 2026, and accordingly an October 1, 2026 effective date will permit this template agreement to become effective in time for the launch of the EDAM, thereby facilitating the market participation of the majority of the LSEs within Portland General’s BAA. Further, Portland General has engaged with stakeholders in advance of this filing to facilitate stakeholder review of the LSE SC Services Agreement and has incorporated feedback from stakeholders in the LSE SC Services Agreement included in this filing. Specifically, Portland General posted the draft LSE SC Services Agreement on its public OASIS page on July 29, 2026, for Transmission Customer feedback with a requested response date of August 11, 2026. Portland General received one substantive request for clarifying language regarding termination if an EDAM Load Serving Entity stops providing Load Serving Entity services, which Portland General incorporated into the draft LSE SC Services Agreement at Section 3.4 Thus, Portland General respectfully requests the Commission grant any other waivers or authorizations necessary to make the revisions effective upon the date requested. Portland General respectfully requests that the Commission accept this revised Tariff as discussed herein.
