The eighth edition of this bestselling handbook includes revisions covering ASHRAE Level 1 and 2 energy audits, as well as a chapter on water conservation. Topics include energy assessment and computer software that guide readers in planning and carrying out a thorough and accurate energy audit for any type of facility, including electrical, mechanical, and building systems analysis. Clear, easy-to-follow instructions cover accounting procedures, rate of return, and life cycle cost analysis. Loaded with forms, checklists and handy working aids, this resource provides important tools for anyone responsible for conducting or overseeing a facility energy audit.