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April 16, 2025

California Independent System Operator (CAISO)

CAISO
Reliability Projects Dominate CAISO’s $4.8B Draft Transmission Plan
CAISO's 2024/25 draft transmission plan recommends 31 new projects at an estimated cost of $4.8 billion, slanting heavily toward reliability needs.
CAISO
WEIM Q4 Prices Down on Lower Gas Costs, CAISO DMM Finds
CAISO's Department of Market Monitoring found lower natural gas prices helped drive down energy prices in the WEIM in the fourth quarter of 2024.
© RTO Insider
WEIM Experience, Reliability Benefit Drove EDAM Decision, BANC Says
For the Balancing Authority of Northern California, a positive experience with CAISO’s Western Energy Imbalance Market was a key factor in the decision to also join the ISO’s Extended Day-Ahead Market.
CAISO
Fast-paced Effort will Address EDAM Congestion Revenue Issue
CAISO launched an “expedited” initiative to address stakeholder concerns about how EDAM will allocate congestion revenues when a transmission constraint in one balancing authority area causes congestion in a neighboring BAA.
Shutterstock
Stakeholders Call for Further IBR Standard Revisions
Industry stakeholders called for a number of revisions to NERC's proposed inverter-based resource ride-through standards, mostly involving the exemption process for legacy inverters.
Ameren
Utilities Ask FERC to Toss Local Tx Planning Complaint; Others Support It
FERC was flooded with comments on a wide-ranging complaint filed by electricity consumers seeking increased oversight of local transmission planning.
Capital Power
CAISO, EDF Trading Settle Fuel Cost Recovery Dispute
FERC approved a $528,000 settlement that ends a dispute between EDF Trading North America and CAISO over fuel cost recovery.
Shutterstock
Pathways Initiative Receives Praise, Skepticism at Calif. Hearing
California senators heard arguments for and against the West-Wide Governance Pathways Initiative, with some lawmakers voicing concerns about guardrails against market manipulation and what the effort means for the state's autonomy to set its own policies.
Camano Island Chamber of Commerce
7th ‘Issue Alert’ Highlights Markets+ Footprint
Proponents of SPP’s Markets+ argued in their last “issue alert” that the day-ahead market option provides a robust footprint with “exceptional generation and load diversity” across the region while also claiming recent warnings about its seam with CAISO’s EDAM are overblown.
Seattle City Light
Seattle City Light, Others Urge BPA to Pause Day-ahead Decision
The Bonneville Power Administration should remain in CAISO’s WEIM and hold off on joining a day-ahead market, Seattle City Light and other Northwest parties urged in a letter sent to BPA CEO John Hairston.

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