We have a project that we are pursuing LEED certification on and have a question on how it should be modeled.  The project is a heated and ventilated aircraft hangar with an adjoining conditioned office building and it was modeled as such.

When the energy model and supporting LEED documentation were provided to the Client for preliminary review, we received the comment that the hangar should be modeled as though it was heated and cooled.  They cited Table G3.1 1.b, which states:

All conditioned spaces in the proposed design

shall be simulated as being both heated and cooled even if no heating or cooling system is to be installed, and temperature and humidity control setpoints and schedules shall be the same for proposed and baseline building designs.

Is it the intent of the performance rating method to model a fictitious system as being part of the proposed design in this case?  If so, this artificial energy use will have a negative impact on proposed energy savings.

Thanks.