The winter of 2025/26 was the most expensive winter in the history of ISO-NE’s wholesale markets, driven by the lowest average temperatures in 20 years.

Politicians increasingly are interested in wholesale markets, which has meant price caps but also is pushing regulators and the industry to move faster on meeting rising demand affordably and reliably.

Energy officials in Idaho, Utah and Wyoming called on the West-Wide Governance Pathways Initiative to ensure states with members in the Regional Organization for Western Energy have full access to data and market information, saying failure to do so risks infringing states’ rights and undermining public confidence.

For the first time in years, California’s grip on Western market design is genuinely at risk, writes Nick Myers of the Arizona Corporation Commission.

Arizona Public Service would save $110 million/year by joining CAISO's Extended Day-Ahead Market rather than SPP's Markets+, a new analysis found.

The consequences of the Bonneville Power Administration’s decision to join SPP’s Markets+ could hit the Northwest sooner rather than later even though the agency has yet to formally join the market, a group of nonprofits suing it over the choice told the 9th U.S. Circuit Court of Appeals.

CAISO released a set of guiding principles for upcoming discussions about seams between the ISO, SPP and other entities as the Extended Day-Ahead Market nears its opening in May.

Stakeholders endorsed PJM’s recommended installed reserve margin and forecast pool requirement for the 2028/29 Base Residual Auction at the Markets and Reliability Committee meeting.

FERC has rescinded the West-wide wholesale electricity price cap mechanism it implemented in response to widespread price manipulation during the Western energy crisis of 2000/01, saying development of new markets and expanded authority has led to improved monitoring capabilities.