National Home Energy Rating

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 scheme was launched in 1991 and operated by National Energy Services (NES), a trading subsidiary until 2011 of the National Energy Foundation, an independent charity set up in 1988 to promote energy conservation and renewable energy. In September 2016, NES transferred ownership of the NHER scheme to another independent accreditation scheme operator, Elmhurst Energy.^{[citation needed]}

The NHER runs an accreditation scheme for energy assessors to produce the following:

Energy Performance Certificates for existing dwellings, using RDSAP^{[clarification needed]}
Energy Performance Certificates for new build dwellings, using the Standard Assessment Procedure (SAP) rating
Energy Performance Certificates for non-domestic buildings dwellings, using SBEM^{[clarification needed]}
Display Energy Certificates for public buildings, using DECs^{[clarification needed]}

The NHER scale for new build dwellings runs from 0 to 20, with 20 being best. It uses different criteria than the 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 an NHER rating of 20 achieves zero CO₂ emissions along with zero net running costs.

National Home Energy Rating

See also

References

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