BER Rating

A

Very energy-efficient with low carbon emissions

B

Good energy efficiency

C

Average energy efficiency

D

Below average energy efficiency

E

Poor energy efficiency

F

Very poor energy efficiency

G

Extremely poor energy efficiency

A Building Energy Rating (BER) is a measure of the energy performance of a building. It is typically used to assess and communicate how energy-efficient a residential or commercial property is. The rating is presented in the form of a certificate, and it gives an indication of the building’s energy consumption and carbon emissions.

The BER rating is expressed on a scale from A to G, with A being the most energy-efficient and G being the least. The scale is color-coded, with green for higher efficiency (A-rated) and red for lower efficiency (G-rated). Here’s a brief overview of the ratings:

The rating takes into account various factors, including insulation, heating systems, ventilation, and renewable energy sources. Having a higher BER rating not only indicates that the building is more environmentally friendly but can also result in lower energy bills for the occupants.

In Ireland, every new dwelling and non-domestic building offered for sale or rent to any prospective purchaser or tenant must have an energy rating certificate provided by a certified BER assessor. New dwellings will typically require a Building Energy Rating (BER) of A2, compared to the current requirement of A3 for new residential dwellings. A BER certificate shows a building’s energy performance.