In making grants under this part to any institution of higher education after August 14, 2008, the Secretary may give priority to institutions that meet or exceed the most current version of ASHRAE/IES Standard 90.1 (as such term is used in section
6313
(a)(6) of title
42) for any new facilities construction or major renovation of the institution after such date, except that this subsection shall not apply with respect to barns or greenhouses or similar structures owned by the institution.