The Bonneville Power Administration’s draft decision “solidifying” its day-ahead market choice in favor of SPP’s Markets+ has reignited a yearslong debate over the agency’s direction.

A group of nonprofits suing BPA said its decision to join SPP’s Markets+ instead of CAISO’s EDAM “violated clear mandates from Congress.”

Trade organizations for utilities and large energy consumers seek to intervene in the lawsuit filed in the 9th Circuit Court of Appeals challenging the Bonneville Power Administration’s decision to join SPP’s Markets+ instead of CAISO’s EDAM.