An `example year' for the calculation of energy demand in buildings.

At present, there are many design and investigatory methods(often supported by computer programs)that take account of the reaction of the building and its heating and cooling systems to outdoor conditions as they vary with time. This makes it desirable to have some agreed sample of weather to allow contrast and comparison between various methods
for predicting building and system behaviour, and between individual design cases to be on a common basis.
The proposals below although evolved from work in the authors' establishments have been discussed more widely and
they have the support of the Electricity Council, National Coal Board, British Gas Corporation and Building Services Research and Information Association. The proposals are published to make them available more widely and thus fulfill their objective of eliminating one of the obstacles to easy comparison of information from diverse sources.