; (B) is contained within a clearly defined electrical boundary and has the ability to operate as a single and controllable entity; (C) has the ability to— (i) connect to, disconnect from, or run in parallel with the applicable grid region; or (ii) be managed and isolated from the applicable grid region in order to withstand larger disturbances and maintain the supply of electricity to a connected location; (D) has no point of interconnection to the applicable grid region with a throughput capacity in excess of 20 megawatts; and (E) can connect to one building or multiple interconnected buildings. (12) Micro-hydropower The term micro-hydropower means hydropower that produces no more than 100 kilowatts of electricity using the natural flow of water. (13) Produced in the United States The term produced in the United States means, in the case of iron or steel, that all manufacturing processes, including the application of a coating, occur in the United States. (14) Registered apprentice The term registered apprentice means a person in an apprenticeship program that is registered with, and approved by, the United States Department of Labor or a State Apprenticeship Agency in accordance with parts 29 and 30 of title 29, Code of Federal Regulations (as in effect on January 1, 2020). (15) Small business The term small business has the meaning given the term small business concern under section 3 of the Small Business Act ( 15 U.S.C. 632 ). (16) Tribal and indigenous community The term Tribal and indigenous community means a population of people who are members of— (A) a federally recognized Indian Tribe; (B) a State-recognized Indian Tribe; (C) an Alaska Native or Native Hawaiian community or organization; or (D) any other community of indigenous people located in a State.