The four U.S. senators representing Oregon and Washington contend BPA has failed to make a financial case for joining Markets+, a condition they say should be the key driver of the agency’s decision to participate in a Western day-ahead market.

CAISO’s adoption of the Pathways Initiative’s “Step 1” changes won't overcome BPA’s objections to the governance of the ISO’s EDAM, Administrator John Hairston told U.S. senators from the Pacific Northwest.

The senators representing Oregon and Washington urged the agency to delay its decision to join a Western day-ahead electricity market until developments play out further around SPP’s Markets+ and CAISO’s EDAM.