Basic sector dassification lnput 10ulput tab且 e were apPlied to ana 且 yze 重 he construction , operation and renewal of office buildings to oblain the Iife cycle energy consumplien and carbon dioxide emission . Tota]energy consumption is approximately g GJ per sq し lare meter bf floor area by construction , 1. 2 GJ per square meter per annum for opera1ion and O . 037 G 亅 per square meter per annum for renewaL 喰)lal carbon dioxide elnission is apProxiInately 980 kg per square meter of f且 ool ' area by construction .90 kg per square meter per annum for operation and 3 kg per sq 岨 re meter per anmlm for renewal . Kaytoord 二 inPut / OutPut ttzbte , energy 'onsumption , CO 2 emis εion , conStltruction. qparation , office
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