Next Generation Lighting Initiative Act - Directs the Secretary of Energy to implement: (1) the Next Generation Lighting Initiative to support research, development, demonstration, and commercial application activities related to advanced solid-state lighting technologies based on white light emitting diodes; (2) fundamental research activities of the Initiative through a private consortium (which may include private firms, trade associations and institutions of higher education), selected through a competitive process; and (3) development, demonstration, and commercial application activities of the Initiative through awards to private firms, trade associations, and institutions of higher education.