我国绿色建筑认证项目增量成本现状及建议

Status and Suggestion for the Incremental Costs of Green Certification Projects

基于美国的LEED和中国的GBES两大绿色建筑认证体系在中国应用广泛的背景,研究了我国实现GBES和LEED各评价项的技术增量成本现状,及GBES和LEED各认证等级的增量成本,通过分析GBES和LEED(2.2版)两大认证体系,明确GBES与LEED各认证等级的近似关系,为绿色认证项目增量成本的现状分析提供理论依据。研究表明我国GBES的较多评价项需使用较高(高)增量成本技术实现,绿色认证项目的增量成本偏高,且GBES认证项目的准入增量成本高于LEED(2.2版)认证项目。提出了降低增量成本的建议:大力发展实现绿色建筑评价项的低增量成本绿色技术体系、选择低增量成本技术实现的评价项进行认证、进一步完善GBES的认证体系,研究成果可为新标准的实施提供借鉴。

Based on the two equally well-practiced green certification systems, LEED and GBES, in China, this study investigated the incremental cost for realizing each LEED and GBES evaluation item and for different LEED and GBES certification levels, and the incremental costs for different LEED and GBES certification levels. Results indicated that most of the evaluation items of LEED （2.2 version） and GBES （2006 version） needed to be realized with relativity high and high incremental cost technologies in China; the incremental cost of green certification projects were relativity high; GBES-certified projects leaded to higher prerequisite incremental cost than LEED-certified projects. Three suggestions for reducing the incremental cost were proposed, the first one was that the low incremental cost technologies should be developed; the second one was that evaluation items that can be realized with low incremental cost technologies should be chosen with priority; and the third one was that the rating method of Green Building Evaluation Svstemshould be improved.