1.1 This Standard sets out three objectives:
(a) To identify appropriate, achievable target energy budgets, for use by either designers or operators
(b) To offer guidance to designers, to pinpoint the commonly important choices for them to consider. The correct decision will usually be a result of a complex interplay between several partly conflicting requirements
(c) To offer guidance to operating staff responsible for running a building, and useful techniques and points for attention, to achieve satisfactory low-energy performance.