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March 11, 2025

California Independent System Operator (CAISO)

NOAA
CAISO Leaders Look Ahead to 2025 with Confidence
CAISO, California and other parts of the West head into 2025 with a heavy load of priorities: implementing EDAM, developing the infrastructure needed to meet ambitious climate goals, and moving forward with new and continuing initiatives to address some of the ISO’s biggest challenges.
© RTO Insider LLC
EDAM Won’t Eliminate WEIM-only Option, CAISO CEO Says

CAISO’s launch of the Extended Day-Ahead Market will not spell the end of a Western real-time-only offering from the ISO, according to CEO Elliot Mainzer.

Kevin Dooley, CC BY-SA-2.0, via Wikimedia Commons
Western Market Developers Compare Approaches to GHGs
On the surface, CAISO’s Extended Day-Ahead Market and SPP’s Markets+ will take similar approaches to accounting for greenhouse gas emissions — but important differences remain.
CAISO
FERC OKs CAISO Plan to Streamline Interconnection Process
FERC approved CAISO’s request to further streamline its generator interconnection process in response to the high volume of requests in its interconnection queue.
CAISO
CAISO Launches New Initiative for Storage Resource Design
CAISO kicked off a new Storage Design and Modeling Initiative intended to tackle an array of challenges related to the growing market participation of storage resources.
CAISO
CAISO Monitor: ISO Easily Handled Annual Peak Demand in 2024
CAISO's Department of Market Monitoring reported that the ISO saw “one of the highest demand peaks” in recent years in 2024.
NREL
FERC Approves Fines on Batteries for Misleading Bids in CAISO
FERC approved fines on Sonoran West Solar Holdings for submitting misleading initial state of charge values that led to undue bid cost recovery payments.
Tacoma Public Utilities
Pathways Step 2 Not Good Enough, Markets+ Backers Say
The West-Wide Governance Pathways Initiative still grapples with political uncertainties and governance concerns despite efforts to fix those issues, proponents of SPP’s Markets+ contended.
© RTO Insider LLC
CAISO Considering Fast-start Pricing for Extended Day-Ahead Market
CAISO is considering how to apply fast-start pricing to the Extended-Day Ahead Market — a topic that has been a sticking point for some as entities across the West decide which day-ahead market to join.
© RTO Insider LLC 
Amid Praise for Pathways Step 2 Milestone, Skeptics Remain Unmoved
The Pathways Initiative drew praise from many quarters with the vote to approve its “Step 2” proposal, but it was quickly apparent the development will do little to sway Markets+ supporters.

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