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Policy implications for the performance gap of low-carbon building technologies

机译：对低碳建筑技术性能差距的政策影响

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摘要

It is widely recognized that the actual impact of low-carbon technologies is often lower than predicted by models alone, a phenomenon which has been coined the 'performance gap'. Despite this awareness, in many instances estimates of both energy savings and renewable energy generation in domestic buildings continue to rely on engineering models and building energy simulations rather than approaches that are based on measured parameters. Much of the existing literature on the performance gap focuses on energy efficiency and is concerned with the quantification of the scale of the performance gap. This paper adds to this body of evidence by drawing retrospectively on a range of grey literature evaluations of low-carbon technologies (including energy-efficiency measures, renewable heat and renewable electricity) in the UK household sector. The focus is on not only the quantification of the performance gap but also the qualitative factors often overlooked, such as installation issues or installer/user behaviour. Recommended policy changes include the development of evaluation standards, the experimentation with pay-for-performance programmes, ensuring that installation standards for low-carbon technologies are being enforced, and taking reasonable steps to ensuring that end users can use any new technology effectively.
机译：众所周知，低碳技术的实际影响通常低于模型所预测的效果，这种现象被称为“性能差距”。尽管有这种认识，但在许多情况下，对住宅建筑中的节能和可再生能源发电的估计仍继续依靠工程模型和建筑能耗模拟，而不是基于测量参数的方法。关于性能差距的现有文献很多都集中在能源效率上，并且与性能差距规模的量化有关。本文通过回顾性地对英国家庭部门对低碳技术（包括能效措施，可再生热能和可再生电力）进行了一系列灰色文献评估，从而补充了这一证据。重点不仅在于性能差距的量化，还在于经常被忽视的定性因素，例如安装问题或安装者/用户的行为。建议的政策更改包括：开发评估标准，按绩效付费计划进行试验，确保执行低碳技术的安装标准，并采取合理步骤以确保最终用户可以有效使用任何新技术。

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