CAISO Extended Day-Ahead Market (EDAM)
CAISO
A wide variety of stakeholders — including representatives of the DER sector — will serve as advisers to the Pathways Initiative as it enters its next phases.
Western Energy
With California passing the bill designed to transition the governance of CAISO’s markets to an independent regional organization, new challenges await the West-Wide Governance Pathways Initiative as the coalition seeks to turn a once-elusive goal into reality.
Office of Assemblymember Cottie Petrie-Norris
California lawmakers have passed a landmark bill that will allow CAISO to transition the governance of its markets to the independent “regional organization” envisioned by the West-Wide Governance Pathways Initiative.
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
After years in the making, CAISO released a price formation proposal intended to reduce “unnecessary” market power mitigation, strengthen reliability and provide consistent pricing incentives in the WEIM and future EDAM.
Office of Sen. Jeff Merkley
Six Western U.S. senators came out in support of the California legislation needed to transform CAISO’s market into an independent regional energy market, saying in a letter to Gov. Gavin Newsom the bill promises "improved grid reliability and significant energy cost savings.”
McGranahan Architects
Washington’s Ecology Department clarified that cap-and-invest rules that apply to CAISO’s Western Energy Imbalance Market also will cover the ISO’s Extended Day-Ahead Market when it begins operations in 2026.
PG&E
Four Western utility executives participating in an Energy Bar Association webinar presented their reasoning for why they ultimately chose either SPP’s Markets+ or CAISO’s EDAM, with some eyeing the creation of a full regional transmission organization in the future.
© RTO Insider LLC
The West-Wide Governance Pathways Initiative is preparing to file the incorporation documents for the independent RO that will govern CAISO’s energy markets, while funding challenges remain.
Shutterstock
CAISO’s EDAM clinched a set of wins when FERC approved the market’s revised congestion revenue allocation model and authorized participation for the EDAM’s first two members — PacifiCorp and Portland General Electric.
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