Western Energy Imbalance Market (WEIM)
As NV Energy moves forward with plans to join CAISO’s Extended Day-Ahead Market, Nevada regulators have laid out a framework for how the company can seek approval for EDAM participation.
Backers of the West-Wide Governance Pathways Initiative will move quickly on a proposal to alter the governance of CAISO’s Western EIM and EDAM after voting to approve the plan.
CAISO’s Board of Governors and WEIM Governing Body unanimously voted to approve an expedited proposal to increase the ISO’s soft offer cap from $1,000/MWh to $2,000.
An NV Energy executive provided the strongest public indication yet as to why the utility is poised to choose the ISO's Extended Day-Ahead Market over SPP’s Markets+.
CAISO’s first-quarter benefits report offers another footnote to the debate over the market’s role in the response to the January deep freeze that brought parts of the Northwest to the brink of rolling blackouts.
Fast-start pricing could fix certain “price anomalies” in CAISO markets more effectively than existing mechanisms for compensating ramping resources, the WEIM Governing Body’s market expert told the group.
CAISO's Department of Market Monitoring found that limits on WEIM imports last year led to increased transmission congestion in the ISO's markets.
The 80-page report represents the latest volley in an ongoing skirmish among Western electricity sector stakeholders over what exactly occurred on the regional grid during the Jan. 12-16 deep freeze.
In an interview, CAISO CEO Elliot Mainzer touted the importance of interregional coordination — and a single Western market — to meet state policy and reliability goals.
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.
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