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March 4, 2026

CAISO Extended Day-Ahead Market (EDAM)

Pattern Energy
Western Market Seams Complicate Data Center, Clean Energy Investments, Panelists Say
As the West appears to move toward two separate day-ahead markets, data center developers like Google and clean energy companies are investing with the intent to mitigate seams and ensure operational consistency, panelists at an Advanced Energy United webinar said.
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CAISO Issues 1st Report Under Independent Governance Law
CAISO released its first mandatory report under the California assembly bill that paves the way for an independent regional organization to assume responsibility over the ISO’s energy markets.
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CPUC Urges ‘Stop the Brakes’ Tool for EDAM Congestion Revenue Approach
The California PUC wants CAISO to come up with a way to pause settlements of certain congestion revenue allocations in the ISO’s upcoming Extended Day-Ahead Market if participants begin to game the market through extensive self-scheduling.
JIRSA Hedrick
Colo. PUC Sticks with Approval of Markets+ for PSCo
Colorado regulators have declined to reconsider their decision finding that it would be in the public interest for Public Service Company of Colorado to join SPP’s Markets+.
Black Hills Energy
Black Hills Colorado Seeks Approval to Join Markets+
Black Hills Colorado Electric has filed an application with Colorado regulators to join SPP's Markets+, saying it has no choice because it is embedded in a balancing authority that will be a Markets+ participant.
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WRAP Builds Momentum, Faces Challenges Heading into 2026
With 16 binding participants and 58 GW worth of load committed, the Western Power Pool’s Western Resource Adequacy Program aims to build on the momentum in 2026 and prepare for more members.
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CAISO Readies EDAM Tariff Changes as New Market Nears Opening
CAISO is proposing a set of tariff changes for submission to FERC early in 2026 to help ease participants into the ISO’s new Extended Day-Ahead Market.
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UPDATED: NV Energy Filing Reveals Extensive Talks Around EDAM RA Program
Future participants in CAISO’s EDAM have already held extensive talks about developing an alternative to the Western Power Pool’s WRAP for non-CAISO EDAM members, NV Energy confirmed in a filing with Nevada utility regulators.
CAISO
WEM Board OKs Gas Management Changes to Provide ‘Equitable Access’ to Markets
The Western Energy Markets Governing Body approved a set of revisions to CAISO's gas-fired energy generation resource management program after two years of work with stakeholders.
CAISO
CAISO Looks to Eliminate Self-schedule Incentives in EDAM Congestion Revenue Design
CAISO continues to work to revise the rules around how congestion revenues will be allocated to participants in the ISO’s Extended Day-Ahead Market, which will be launched in spring 2026.

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