scope:

This standard covers

a. new buildings and existing buildings or portions thereof;

b. the determination and expression of building energy performance and the estimate of greenhouse gas emissions associated with that energy use; and

c. techniques for the comparison of the energy performance and associated greenhouse gas emissions between different buildings or between alternative designs or operation strategies for the same building.

This standard does not

a. establish building energy performance or greenhouse gas emissions goals or limits;

b. present a method for certification of prediction methodology, such as computer programs;

c. address embodied energy of building materials and systems; or

d. incorporate transportation energy or associated greenhouse gas emissions for building functions, including commuting, business travel, and process transportation.

PURPOSE

This standard provides consistent methods for determining and reporting the energy performance of buildings to facilitate (a) the comparison of design and operation strategies in new and existing buildings, (b) the development of building energy performance standards, and (c) the reporting of greenhouse gas emissions associated with building operation.

This standard provides consistent methods for determining, expressing, and comparing the energy performance of and the greenhouse gas emissions associated with the design of new buildings and with improvements to, or changes in, the operation of existing buildings.