; or (II) an Energy Star score of 70; and (ii) to offset not less than 20 percent of energy consumption with onsite renewable energy. (6) Additional standards In carrying out a project using a grant provided under this section, an eligible entity shall adhere to the applicable guidance contained in— (A) the design guide of the American Society of Heating, Refrigeration and Air-Conditioning Engineers (ASHRAE) entitled Achieving Zero Energy—Advanced Energy Design Guide for K-12 School Buildings ; and (B) the document of the National Renewable Energy Laboratory entitled A Guide to Zero Energy and Zero Energy Ready K-12 Schools . (g) Measurements and assessments (1) In general On conclusion of a healthy green retrofit or construction project funded by a grant under this section, the applicable eligible entity shall submit to the Secretary a measurement and assessment of the energy performance of each facility affected by the project, as determined— (A) before and after the project