Last edited 30 Jan 2021


The Building Research Establishment Domestic Energy Model (BREDEM) is a calculation methodology used to estimate the energy consumption of a home based on its characteristics. It complies with the principles given in BS EN 13790:2008.Energy performance of buildings.

The output of a BREDEM calculation is in the form of estimated fuel requirements for various end uses, which can be converted into fuel costs or CO emissions using suitable conversion factors.

BREDEM is suited to a range of energy modelling tasks, such as stock modelling and the assessment of the potential benefits of energy efficiency improvements.

(Ref. Home Quality Mark One, Technical Manual, England, Scotland and Wales, SD239.)

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