This comprehensive handbook has become recognized as the definitive stand-alone energy manager's desk reference, used by thousands of professionals throughout the industry. Newly revised and edited, this eighth edition includes significant updates to energy management controls systems, commissioning, measurement and verification, and high performance green buildings. Also updated are chapters on motors and drives, HVAC systems, lighting, alternative energy systems, building envelope, performance contracting and natural gas purchasing. You'll find coverage of every component of effective energy management, including energy auditing, economic analysis, boilers and steam systems, heat recovery, cogeneration, insulation, thermal storage, indoor air quality, utility rates, energy systems maintenance, and more. Detailed illustrations, charts and other helpful working aids are provided throughout.