; and (B) that has the ability— (i) to disconnect from a traditional electric grid; and (ii) to operate autonomously when disconnected. (4) Renewable energy; renewable energy system The terms renewable energy and renewable energy system have the meanings given those terms in section 9001 of the Farm Security and Rural Investment Act of 2002 ( 7 U.S.C. 8101 ). (5) Smart grid The term smart grid means an intelligent electric grid that uses digital communications technology, information systems, and automation to, while maintaining high system reliability— (A) detect and react to local changes in usage; (B) improve system operating efficiency; and (C) reduce spending costs. (6) Territory of the United States The term territory of the United States means the Commonwealth of Puerto Rico, Guam, the United States Virgin Islands, American Samoa, and the Commonwealth of the Northern Mariana Islands.