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
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