Rethinking Energy Performance Certificates (EPCs) – An Urgent Call for Comprehensive Reform

Here is a summary of the key points from the article:

The article calls for comprehensive reform of the UK’s Energy Performance Certificate (EPC) system for homes beyond just adjusting ratings targets. It argues the need for reform is becoming difficult to ignore despite resistance from EPC proponents.

Evidence of major EPC inaccuracies and flaws:

– Research by CarbonLaces found EPCs overestimate energy use by 344% on average versus actual smart meter data, especially for low G-rated homes.

– Estimated carbon emissions were also highly inaccurate – divergence of 308% for G-rated properties.

– The system seems focused more on compliance than genuinely promoting efficiency.

– Industry silence on the findings suggests acknowledgment of EPC problems.

– Personal accounts further fuel skepticism about assessments.

Replacing EPCs poses challenges and requires careful consideration. But assessing buildings’ real-world thermal losses during operation could be promising.

The Royal Institution of Chartered Surveyors advocates reform to emphasize final energy use, emissions and costs to better align with government climate goals.

More frequent EPC assessments may be needed given the pace of change. However, knee-jerk reactions must be avoided – a thorough, deliberate review is essential.

In conclusion, despite the effort required, a comprehensive EPC reform process embracing introspection and sustainable change is imperative. The political will seems lacking but the mounting evidence means the industry can no longer ignore the need.