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National calculation methodology for determining the energy performance of buildings

Publication Year

2007

Document Status

Current

Abstract

Defines the procedure for calculating the annual energy use for a proposed building (based on a range of factors) and compares it with the energy use of a comparable notional building. The National Calculation Methodology (NCM) also calculates the rate of carbon emissions from the building which should not be greater than its Target Emission Rate as described in Approved Documents L and also calculated by the NCM.

Publisher Information

NBS

NBS are committed to offering distinctive, innovative specification and information solutions to construction industry professionals and are proud to be leading the construction industry in its digital evolution. Their roots lie in the UK's National Building Specification and for nearly 50 years has been helping the construction industry build better and with lower risk. Their future lies in cloud-based technologies and connected data, as they fast become the information marketplace for the global construction industry.

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