March 13, 2025--Written by Jill Sampson for Industrial Info Resources (Sugar Land, Texas)--Bonneville Power Association (BPA) (Portland, Oregon) has released a draft policy announcing its intention to join the Southwest Power Pool's (SPP) (Little Rock, Arkansas) Markets+. BPA is a federal agency that delivers hydropower produced in the Columbia River Basin to communities across the U.S. Northwest. SPP manages the electric grid and wholesale power market for the central U.S.