This practical reference serves as a comprehensive resource for performing energy audits in commercial facilities. The book begins by explaining that when commercial facilities are subdivided into categories based on business type, many useful patterns can be identified that are applicable to the performance of an effective energy audit. It discusses procedures and guidelines for a wide range of business and building types, such as schools, restaurants, medical facilities, grocery stores, laboratories, office buildings, religious facilities, libraries, and warehouses. The book also covers building energy audit and assessment, including building envelope, lighting, HVAC, controls, heat recovery, thermal storage, electrical systems and utilities.