National Home Energy Rating
Encyclopedia
The National Home Energy Rating Scheme (NHER) is both a UK accreditation scheme for energy assessors and a rating scale for the energy efficiency of housing.
The NHER is owned and operated by National Energy Services (NES). Until 2011, NES was a trading subsidiary of the National Energy Foundation
, an independent charity set up in 1988 to promote energy conservation and renewable energy, which launched the NHER scheme in 1991.
The NHER runs an accreditation scheme for energy assessors to produce the following:
The NHER scale for new build dwellings runs from 0 to 20, with 20 being best. It uses different criteria than the Standard Assessment Procedure
(SAP) rating. The NHER rating takes into account the local environment and the effect it has on the building's energy rating. The NHER calculates the costs of space and water heating, but adds cooking, lights and appliances to give a comprehensive picture of energy usage in the home.
An average dwelling in England would currently score between 4.5 and 5.5 on the NHER scale. A gas-heated masonry semi meeting current United Kingdom
Part L1 Building Regulations would score approximately NHER 10. A dwelling with NHER rating 20 achieves zero CO2 emissions along with zero net running costs.
The NHER is owned and operated by National Energy Services (NES). Until 2011, NES was a trading subsidiary of the National Energy Foundation
National Energy Foundation
The National Energy Foundation is an independent British charity, established to encourage the more sustainable use and generation of energy.- Aims :...
, an independent charity set up in 1988 to promote energy conservation and renewable energy, which launched the NHER scheme in 1991.
The NHER runs an accreditation scheme for energy assessors to produce the following:
- Energy Performance Certificates for existing dwellings, using RDSAP
- Energy Performance Certificates for new build dwellings, using SAP
- Energy Performance Certificates for non domestic buildings dwellings, using SBEM
- Display Energy Certificates for public buildings, using DECs
The NHER scale for new build dwellings runs from 0 to 20, with 20 being best. It uses different criteria than the Standard Assessment Procedure
Standard Assessment Procedure
The Standard Assessment Procedure is the UK Government's recommended method system for measuring the energy rating of residential dwellings. The first version was published in 1995, to be replaced by newer versions in 1998, 2001 and 2005. It calculates the typical annual energy costs for space...
(SAP) rating. The NHER rating takes into account the local environment and the effect it has on the building's energy rating. The NHER calculates the costs of space and water heating, but adds cooking, lights and appliances to give a comprehensive picture of energy usage in the home.
An average dwelling in England would currently score between 4.5 and 5.5 on the NHER scale. A gas-heated masonry semi meeting current United Kingdom
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...
Part L1 Building Regulations would score approximately NHER 10. A dwelling with NHER rating 20 achieves zero CO2 emissions along with zero net running costs.