Western Energy Imbalance Market (WEIM)

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NW Cold Snap Dispute Reflects Divisions over Western Markets

A dispute around the January cold snap that forced Northwest utilities to sharply increase electricity imports to meet surging demand has become a proxy for the broader day-ahead market contest between CAISO and SPP.

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Northwest Public Power Group Endorses Markets+ over EDAM
The Public Power Council has asked the Bonneville Power Administration to choose SPP’s Markets+ when the agency issues its day-ahead market “leaning” in April.
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Western RTO Effort Makes Gains on Funding, Legal Analysis
The West-Wide Governance Pathways Initiative is advancing on its $570,000 funding target. And its members also are wading deeper into one of the key subjects it was conceived to address: CAISO's governance.
LADWP
LADWP Poised to Join CAISO Day-ahead Market After Board OK

CAISO notched another victory in the competition to bring organized markets to the West when the Los Angeles Department of Water and Power’s oversight board authorized the utility to prepare to join EDAM.

CAISO
WEIM Ends 2023 Exceeding $5B in Benefits
CAISO’s WEIM last year hit $5.05 billion in benefits for its members since its inception in 2014, continuing the positive trend of growth tied to an expanding Western footprint.
Sun Valley Solar Systems
Petition Seeks PURPA Protections for Rooftop Solar
Solar advocates petitioned FERC to take enforcement action against SRP for setting rates that allegedly discriminate against customers with rooftop solar.
IBEW
Former Opponents Shift Position on CAISO ‘Regionalization’
The change of heart comes as participants in the West-Wide Governance Pathways Initiative work to build the framework for an independent RTO.
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Western Pathways Initiative Sets Budget, Seeks Funders
Backers of an effort to create the framework for an independent Western RTO know how much money they’ll need to get things off the ground, and they’re seeking funders.
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West Entered Pivotal Period for RTO Development in 2023

Future historians of the U.S. electricity sector one day might conclude the development of an RTO in the West hinged on two separate but interrelated events occurring on one day in July 2023.

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CAISO Wins (Nearly) Sweeping FERC Approval for EDAM
CAISO marked a key milestone in its Western expansion efforts after FERC approved nearly every aspect of its proposed Extended Day-Ahead Market.

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