Energy Performace Certificate
The Energy Performance Certificate (EPC) is broadly similar to the certificates found on many domestic appliances and is a compulsory document in the Home Information Pack.
An EPC gives the building a rating based on its energy efficiency, but doesn't take into account how its occupants use the home. It gives a rating from A to G. An A rating shows it's very efficient (meaning lower fuel bills) while G is inefficient (meaning higher fuel bills). The Certificate also shows the building's environmental impact by indicating its carbon-dioxide emissions.
There are also recommendations for cost-effective actions to improve the building's rating. The potential rating is based on all the recommendations being implemented.
An Energy Performance Certificate will be required for most homes marketed for sale. There are a few limited exceptions.