The CIBSE Building Energy Code was first published in 1981 but has not been widely used among architects, civil engineers or building services engineers. A full calculation will require about 60 separate data inputs with some 80 calculation steps; perceived complexity and opacity perhaps inevitably lead to reduction in confidence. It is however, an ideal candidate to transferring to spreadsheet format. This paper presents work developed from an educational programme which allows simplified use of an otherwise complex and time-consuming procedure. It also allows the building thermal demand targets to be calculated from first principles.
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