Energy Performance Certificates (EPC) are being introduced to help improve the energy efficiency of buildings.
If you are buying or selling a home you now need a certificate by law. From October 2008 EPCs will be required whenever a building is built, sold or rented out. The certificate provides 'A' to 'G' ratings for the building, with 'A' being the most energy efficient and 'G' being the least, with the average up to now being 'D'.
Accredited energy assessors produce EPCs alongside an associated report which suggests improvements to make a building more energy efficient.

The EPC is part of a series of measures being introduced across Europe to reflect legislation which will help cut buildings’ carbon emissions and tackle climate change.
Other changes include requiring public buildings - for example town halls, libraries, hospitals - to display certificates showing the energy efficiency of the building and requiring inspections for air conditioning systems.