Comments on Draft 2027 Grid Management Charge Revenue Requirement, Project Budget, and Grid Management Charge Rates posting and Oct 27, 2026 meeting.

1. Please provide your organization’s comments on the Draft 2027 Grid Management Charge Revenue Requirement, Project Budget, and Grid Management Charge Rates posting and Oct 27, 2026 meeting.

PGE appreciates the opportunity to submit comments regarding CAISO’s Draft 2027 Grid Management Charge (GMC), Revenue Requirement, Project Budget, and GMC Rates posting and its corresponding meeting. PGE supports the proposed 2027 GMC rates and the methodology used to develop them. CAISO’s approach to calculating rates based on forecasted billing volumes and prior-year true-ups is reasonable and transparent. PGE notes the proposed decline in the Market Services Charge (CC4560) and appreciates the ISO’s efforts to leverage increasing market participation and transaction volumes to moderate costs. PGE also recognizes that certain rate components are expected to increase and understands these adjustments are consistent with underlying revenue requirement and billing forecasts. PGE is encouraged by the potential continued growth in EDAM participation and look forward to continued engagement in the stakeholder process.