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Limits and uncertainty for energy efficiency in the UK housing stock

机译：英国住房存量的能效限制和不确定性

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The UK government's Clean Growth Strategy unambiguously described the decarbonisation of heat as the UK's greatest policy and technical challenge in meeting our carbon targets. Maximising the potential for energy efficiency in the existing domestic stock is critical to the low-carbon heat transition. Good information exists on the technical potential for energy efficiency measures in the UK stock, however, a lack of knowledge about current stock conditions and in-use factors places considerable uncertainty on how much of this technical potential is achievable in practice.This study uses data from the fifth carbon budget (CB5) policy projections and updates the in-use factors using measured data from the National Energy Efficiency Database (NEED). This results in a 26% shortfall by 2035 in the anticipated energy savings through cavity, solid wall, and loft insulation compared to what is assumed in the CB5 projections. This will have costly implications for meeting future carbon budgets. Risks and policy implications are discussed. The practical potential for energy efficiency measures beyond cavity, solid wall, and loft insulation is explored.
机译：英国政府的“清洁增长战略”明确地将热脱碳描述为英国实现我们的碳目标的最大政策和技术挑战。在现有的国内库存中最大程度地提高能效潜力对于低碳热转换至关重要。关于英国库存中能效措施的技术潜力有很好的信息，但是，由于缺乏对当前库存状况和使用中因素的了解，因此在实践中可以实现多少这种技术潜力存在很大的不确定性。根据第五个碳预算（CB5）的政策预测，并使用来自国家能源效率数据库（NEED）的测量数据来更新使用系数。与CB5预测相比，到2035年，通过型腔，实心墙和阁楼隔热层实现的预期节能量将减少26％。这将对满足未来的碳预算产生昂贵的影响。讨论了风险和政策含义。探索了除空腔，实心墙和阁楼绝缘之外的节能措施的实际潜力。

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