; and (2) $25,000,000 for administration of the Office under this section. (g) Definitions In this Act: (1) Department The term Department means the Department of Energy. (2) Director The term Director means the Director of the Office of Advanced Clean Energy Technologies. (3) Office The term Office means the Office of Advanced Clean Energy Technologies established under subsection (b). (4) R EIDI s The term Regional Energy Innovation and Development Institute or REIDI means a partnership between local, State, regional, Tribal governments, academic institutions, businesses, DOE national laboratories, and other clean energy entities that the Director designates under section 2(d) to advance the development of early-stage innovations and support after proof concept to help clean energy innovations reach viability for commercial demonstration and deployment. (5) Secretary The term Secretary means the Secretary of Energy.