长期以来，减少建筑物中的能源利用一直是绿色承包商和所有者的目标。美国能源部报告说，建筑物占美国能源消耗的40％，建筑物所有者每年花费400亿美元。尽管有这笔费用，但在工作空间中，建筑物的居民通常还是不舒服的。

不w a study by McGraw Hill Construction (MHC) suggests that high-performance building system technologies already on the market can offer substantial savings in energy use over traditional systems. Working in partnership with Siemens Building Technologies, MHC surveyed practicing engineers and contractors and delved deeper into 10 energy-efficiency technologies to understand those with the most market success.

The Level of Use

数据表明，回应的工程师和承包商中有63％至71％具有高性能技术的工作知识，或者已经指定并安装了调查中包括的10个系统中的6个。对于较新的或更多的专业系统，例如冷藏梁和热电联产，超过40％的公司仍然报告了至少对它们的工作知识，足以产生足够的客户兴趣。这表明该行业知道这些技术，但系统并不广泛使用，因此其他因素必须发挥作用。

到目前为止，他们使用的最大障碍是关注成本。该研究说新利18备用，建筑物所有者的兴趣和能力也是关键因素。这些担忧得到了对使用许多系统的工程师进行的深入访谈的支持。大多数人报告需要考虑所有者是否拥有内部专业知识来操作和维护系统。工程师还必须权衡所有者处理新技术风险的能力。

These findings suggest that more intensive education of building owners and their staffs is essential to take full advantage of the technologies. The main factor driving most engineers and contractors to employ new technologies is their ability to deliver the desired results on specific projects. For example, the study reveals that under-floor air distribution systems can be used effectively in large, open floor plans. Such considerations should drive selection of systems rather than concerns that they will challenge owners' capabilities.

使用的好处

The good news is that when engineers and contractors use these technologies, they result in notable energy savings over more traditional systems. For four of the technologies included in the survey—energy recovery, demand-control ventilation, geothermal and automated facades—more than 60% of those who have used them report a median level of energy savings ranging from 11% to 13% compared with traditional systems. For the remainder of the 10 technologies, one-third to one-half of the respondents report energy savings, with the exception of dedicated outdoor air systems, more typically used in combination with other strategies.

这些发现清楚地表明，当前可用的技术可以帮助建筑所有者实现能源使用目标。但是，没有单一的技术，没有“银弹”，它适用于所有建筑类型以获得所需的结果。技术及其相关的好处范围表明，增加现有系统的使用可能会对建筑环境中的能源消耗产生强大的影响。

但是，该研究还揭示了可以通新利18备用过系统创新和集成来最大化收益。从事这些技术工作的工程师和承包商很少分别使用它们报告，尤其是在深入访谈的专家中。他们说，现有系统的有效性可以提高。