The main purpose of this legislation, known as the POWER Up Act, is to clarify the role of the Federal Energy Regulatory Commission (FERC) in overseeing the connection of large load facilities to the electric transmission system that operates across state lines. This is important for ensuring that these large facilities can connect to the grid in a way that maintains reliability and fairness in the electricity market. Key provisions of the Act include a definition of what constitutes a "large load facility," which is any facility with a peak electricity demand of 100 megawatts or more.