Every project and owner is unique. Some buildings are set out with goals to have the greenest building in the world while others are simply trying to provide adequate thermal comfort. There is a fine line between providing an adequate system while encouraging an owner towards an energy efficient design. And when and how do you bring the facilities engineer into the design process? This presentation covers how to present and tailor HVAC system design options to the owner, design team and facilities group, while addressing energy use concerns, architectural aesthetics, acoustical criteria, and operations and maintenance preferences.