WEIM Governing Body
CAISO DMM
CAISO’s Western Energy Imbalance Market saw an increase in battery storage capacity and coal use in 2025 compared with 2024, although the total load across the market did not increase over the year.
CAISO
It’s an “all-hands-on-deck” moment for CAISO to open its extended day-ahead market in less than two months, CAISO’s CEO Elliot Mainzer said at a Western Energy Market Board of Governors meeting.
© RTO Insider LLC
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.
CAISO
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
In an ongoing high-stakes analysis, CAISO has determined that transactions between PacifiCorp’s two balancing authority areas can “materially” affect parallel flows on certain CAISO transmission constraints.
CAISO
PacifiCorp and Portland General Electric remain on track to join CAISO’s Extended Day-Ahead Market on their planned entry dates, although the schedule remains “very tight and very aggressive."
CAISO
Western Energy Imbalance Market prices increased sharply in the second quarter of 2025 compared with the same period in 2024, mostly due to higher natural gas prices at Western hubs.
CAISO DMM
California’s fastest-growing energy resource — battery storage — is earning less net revenue each year, while capacity is forecast to continue to boom.
CAISO
Out-of-state wind integration, merchant transmission development and the WestTEC planning effort are all factors influencing CAISO’s interregional transmission planning.
Seattle City Light
Former Seattle City Light CEO Debra Smith has been nominated to join the Western Energy Markets (WEM) Governing Body, with a three-year term to begin July 1.
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