January 24, 2025

Western Energy Imbalance Market (WEIM)

WestConnect
WestConnect Tx Cost Allocation Plan Rejected by FERC
FERC rejected a proposed settlement intended to resolve a longstanding dispute over how to implement Order 1000 in the WestConnect planning region.
Red Cliffs Desert Reserve
Hawks Key Concern in Draft EIS for Proposed Wash. Wind Farm
A draft environmental impact study for a proposed Washington wind and solar farm examines concerns about nesting areas for the region’s ferruginous hawks.
Southern California Edison
CAISO, WEIM Boards Back Reliability Enhancements
The CAISO Board of Governors and Western Energy Imbalance Market Governing Body adopted resource sufficiency and storage changes to promote summer reliability.
CAISO
PacifiCorp to Join EDAM, Final Plan Released
CAISO issued its final plan to add a day-ahead market to its real-time Energy Imbalance Market, and PacifiCorp said it would join if the plan is approved.
Business Wire
NV Energy IRP Looks to Reduce Reliance on Open Market
NV Energy has filed a proposal that would reduce Nevada's dependence on the open energy market through new geothermal, storage and a gas-fired peaker.
Energy Strategies/CAISO
West Could Save $1.2B a Year in CAISO EDAM
An extended day-ahead market for CAISO's Western Energy Imbalance Market could produce up to $1.2 billion annually for Western participants, a new study found.
Pattern Energy
SunZia Transmission OK’d by Ariz. Regulators
Arizona regulators granted a key approval to the SunZia Transmission project, which would deliver wind energy from central New Mexico into Arizona.
CAISO
CAISO Finalizing Plan for WEIM EDAM
CAISO's draft final proposal for a day-ahead expansion of its Western Energy Imbalance Market is up for review this month, with a final plan due in December.
CAISO
WEIM Q3 Benefits Top $500M, Near $3B Total
CAISO's Western Energy Imbalance Market reached a record $526 million in benefits in Q3 and neared $3 billion in cumulative benefits since it started in 2014.
CAISO
CAISO Reports on Summer Heat Wave Performance
CAISO said it avoided September blackouts through a combination of public conservation, imported electricity and coordination with utilities and agencies.

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