What are energy performance certificates (EPCs) and why are they important?

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What are energy performance certificates (EPCs) and why are they important? research summary What are energy performance certificates (EPCs) and why are they important? PDF / 289kB

Aotearoa New Zealand has over 2 million private homes but there is little detailed information on their year-round thermal performance. Energy performance certificates (EPCs) could fill a knowledge gap for policy makers, incentivise housing stock improvements and help reduce emissions.