A comprehensive, practical reference on energy auditing in buildings and industry, this book provides all the information required to establish an energy audit program. Loaded with forms, checklists and handy working aids, the book is a must for anyone implementing an energy audit. Completely updated, the sixth edition reflects the technologies and software available to fine-tune the audit process. It covers accounting procedures, rate of return, analysis and software programs, evaluation tools for audit recommendations, and technologies for electrical, mechanical, and building systems in detail. There are also new case studies on an energy retrofit program and energy assessment using FEDS.