Energy grading and labeling tools. a Energy Star and Building EQ from the US ((Agency and History of EPA's Climate Partnership Programs. 2022; ASHRAE. Building E.Q. 2022)). b DEC from the UK (Department of Finance. Display Energy Certificates 2022). c BELS in Janpan (Center and of Japan. BELS evaluation. 2022). d EEEG in China (Ministry of Housing and Urban-Rural Development. Notice on the trial implementation of the energy efficiency evaluation and grading system for civil buildings 2008)