3 ▁a ▁more ▁flexible ▁H ERE , ▁known ▁by ▁Gr aded ▁five ▁star ▁rating ▁system ▁was ▁developed . ▁This ▁rating ▁scheme ▁was ▁much ▁flexible ▁and ▁was ▁suitable ▁to ▁all ▁clim atic ▁conditions ▁of ▁Australia . ▁Pres ently ▁there ▁are ▁different ▁H ERS ▁available ▁in ▁Australia ▁which ▁are ▁used ▁in ▁different ▁state ▁of ▁this ▁country . ▁Some ▁of ▁H ERS ▁used ▁in ▁this ▁country ▁are ▁: ▁ ▁Nat HER S ▁ ▁Acc u Rate ▁ ▁First Rate ▁ ▁Quick ▁R ate ▁▁ ▁B ERS ▁ ▁Q ▁R are ▁ ▁Brazil ▁ ▁In ▁Brazil , ▁the ▁first ▁national ▁program ▁for ▁energy ▁efficiency ▁in ▁buildings ▁( HER S ), ▁PRO CE L ▁E DI F IC A ▁was ▁developed ▁in ▁ 2 0 0 3 . ▁The ▁use ▁of ▁this ▁rating ▁scheme ▁was ▁extended ▁to ▁public ▁and ▁commercial ▁sector ▁in ▁ 2 0 0 7 ▁and ▁from ▁ 2 0 1 2 ▁the ▁oper ational ▁rating ▁is ▁mand atory ▁for ▁both ▁resident ial ▁and ▁commercial ▁buildings . ▁The ▁rating ▁system ▁consist ▁of ▁a ▁scale ▁r anging ▁from ▁A ▁to ▁E ▁basis , ▁where ▁A ▁represent ▁the ▁most ▁efficient ▁and ▁E ▁represent ▁the ▁least ▁efficient ▁rating . ▁The ▁rating ▁scheme ▁consider ▁three ▁aspects ▁of ▁buildings ; ▁ 1 ) ▁Building ▁en velop ▁thermal ▁performance ▁ 2 ) ▁Light ing ▁system ▁efficiency ▁ 3 ) ▁Inst alled ▁power ▁and ▁air ▁condition ing ▁system ▁efficiency ▁The ▁three ▁groups ▁are ▁evaluate ▁individually ▁and ▁the ▁combined ▁results ▁of ▁these ▁indicates ▁the ▁level ▁of ▁efficiency ▁of ▁a ▁building . ▁ ▁Canada ▁Home