A Display Energy Certificate (DEC) provides an overview of the annual energy consumption of a building based on data obtained from the gas, electricity and water meters. The certificate is accompanied by a mandatory advisory report which outlines potential measures for improving the energy performance of the building. The certificate must be replaced every year and a new advisory report generated every 7 years.
At present Display Energy Certificates are only required for buildings occupied by a public authority or an institution providing a public service to a large number of persons. However, the Government has announced its intention to review in the future whether this regulation should be extended to include private sector buildings occupied by commercial organisations and visited frequently by members of the public.
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