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January 31, 2026

California Independent System Operator (CAISO)

McGranahan Architects
WEIM Emissions Attribution Rules Apply to EDAM, Wash. Agency Clarifies
Washington’s Ecology Department clarified that cap-and-invest rules that apply to CAISO’s Western Energy Imbalance Market also will cover the ISO’s Extended Day-Ahead Market when it begins operations in 2026.
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CPUC Approves Guidelines for Large IOUs’ Dynamic Rate Designs

The California Public Utilities Commission approved guidelines for utilities to use to design dynamic electricity rates, with one commissioner asking for more research on whether implementing such rates will leave some customers further behind financially.

© RTO Insider LLC
Pathways Initiative Unveils RO Proposed Name, Bylaws
The West-Wide Governance Pathways Initiative is preparing to file the incorporation documents for the independent RO that will govern CAISO’s energy markets, while funding challenges remain.
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CAISO’s EDAM Scores Simultaneous Wins at FERC

CAISO’s EDAM clinched a set of wins when FERC approved the market’s revised congestion revenue allocation model and authorized participation for the EDAM’s first two members — PacifiCorp and Portland General Electric.

Shutterstock
Pathways Bill Will Make It to Newsom’s Desk, Author Says
After months of negotiations, the author of the California legislation needed to transform CAISO’s market into an independent regional energy market for the West is confident the state legislature will have a bill to vote on before the session wraps up
Office of Gov. Gavin Newsom
Newsom Renews Call for Passage of Pathways Bill

California Gov. Gavin Newsom renewed his call for lawmakers to pass a bill to authorize CAISO to relinquish governance of its electricity markets and allow it and the state’s utilities to participate in a new “regional organization” designed to oversee a West-wide market.

© RTO Insider LLC
FERC OKs Imperial Irrigation District’s WEIM Agreement

FERC approved CAISO's Western Energy Imbalance Market implementation agreement with Imperial Irrigation District.

CAISO
EDAM Implementation Team Reveals New Intertie Scheduling Approach

CAISO staff showed how the grid operator plans to implement certain parts of its Extended Day-Ahead Market, with stakeholders asking for more time to comment on what they said crossed into potential policy revisions.

BLM California
CAISO Monitor Sees ‘Gaming’ Potential in Battery Storage Bid Cost Recovery

CAISO’s Market Monitor is concerned about potential gaming practices and inefficient bidding behavior in the ISO’s bid cost recovery  process for battery storage resources.

DOE
BPA Supported by Trade Orgs in Suit over Day-ahead Market Decision
Trade organizations for utilities and large energy consumers seek to intervene in the lawsuit filed in the 9th Circuit Court of Appeals challenging the Bonneville Power Administration’s decision to join SPP’s Markets+ instead of CAISO’s EDAM.

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