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.
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."
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.
California’s fastest-growing energy resource — battery storage — is earning less net revenue each year, while capacity is forecast to continue to boom.
Out-of-state wind integration, merchant transmission development and the WestTEC planning effort are all factors influencing CAISO’s interregional transmission planning.
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.
CAISO delayed its final decision on how to allocate congestion revenues in its Extended Day-Ahead Market after receiving comments from stakeholders asking for more analysis.
CAISO, California and other parts of the West head into 2025 with a heavy load of priorities: implementing EDAM, developing the infrastructure needed to meet ambitious climate goals, and moving forward with new and continuing initiatives to address some of the ISO’s biggest challenges.
CAISO’s Board of Governors and the Western Energy Markets Governing Body voted unanimously to pass a proposal that will modify the calculation used to determine bid cost recovery payments for storage resources.
CAISO’s Board of Governors and WEM Governing Body approved ISO tariff amendments needed to implement the West-Wide Governance Pathways Initiative’s “Step 1” proposal.
