The Bonneville Power Administration’s planned departure from the Western Energy Imbalance Market has prompted questions about how the agency will handle the yearlong period before it joins SPP’s Markets+.

BPA released its draft proposed decision to join SPP’s Markets+, saying that preparations have advanced to a point where it can “move forward with implementation and propose joining Markets+ in October 2028.”

PJM’s Independent Market Monitor warned the cost of wholesale power in the RTO will continue to rise with the rapid addition of data center load without enough capacity to serve it.

As Nevada regulators consider NV Energy's request to join CAISO's Extended Day-Ahead Market, the debate over the independence of EDAM's governance is intensifying.

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.