; Independent System Operator The terms Regional Transmission Organization and Independent System Operator have the meanings given such terms in section 3 of the Federal Power Act ( 16 U.S.C. 796 ). (12) Transmission system The term transmission system means a network of transmission facilities used for the transmission of electric energy in interstate commerce. 2. Sense of Congress It is the sense of Congress that— (1) in much of the United States renewable generation projects and energy storage projects face unfair and inefficient barriers to Commission-jurisdictional interconnection with the electric grid; (2) legislation is needed to accelerate the timely and efficient interconnection of renewable generation projects and energy storage projects, and to ensure that individual interconnection customers are not forced to bear disproportionate amounts of shared network upgrade costs; (3) network upgrades required to be constructed to interconnect renewable generation projects and energy storage projects benefit all transmission system customers as well as parties that receive power delivered over such transmission systems; (4) the practice of exclusive or disproportionate participant funding, whereby the costs of network upgrades are assigned solely or disproportionately to individual interconnection customers, is unduly discriminatory, harmful to consumers, and not in the public interest; (5) in certain cases, the deployment of grid enhancing technologies can substitute for, and thereby reduce the need for, time required, or cost to construct, a traditional transmission upgrade or addition, such as modifying or adding a conductor or substation element, that otherwise would be required to interconnect a new generation project or energy storage project