; (B) with gross annual sales of less than $100,000,000; (C) with fewer than 500 employees at the plant site; and (D) with annual energy bills totaling more than $100,000 and less than $2,500,000. (9) Smart manufacturing The term smart manufacturing means advanced technologies in information, automation, monitoring, computation, sensing, modeling, and networking that— (A) digitally— (i) simulate manufacturing production lines; (ii) operate computer-controlled manufacturing equipment; (iii) monitor and communicate production line status; and (iv) manage and optimize energy productivity and cost throughout production; (B) model, simulate, and optimize the energy efficiency of a factory building; (C) monitor and optimize building energy performance; (D) model, simulate, and optimize the design of energy efficient and sustainable products, including the use of digital prototyping and additive manufacturing to enhance product design; (E) connect manufactured products in networks to monitor and optimize the performance of the networks, including automated network operations; and (F) digitally connect the supply chain network. 4. Development of national smart manufacturing plan (a) In general Not later than 3 years after the date of enactment of this Act, the Secretary, in consultation with the National Academies, shall develop and complete a national plan for smart manufacturing technology development and deployment to improve the productivity and energy efficiency of the manufacturing sector of the United States. (b) Content (1) In general The plan developed under subsection (a) shall identify areas in which agency actions by the Secretary and other heads of relevant Federal agencies would— (A) facilitate quicker development, deployment, and adoption of smart manufacturing technologies and processes; (B) result in greater energy efficiency and lower environmental impacts for all American manufacturers