This comprehensive handbook is recognized as the definitive stand-alone energy manager's desk reference, used by tens of thousands of professionals throughout the energy management industry. This new ninth edition includes new chapters on energy management controls systems, compressed air systems, renewable energy, and carbon reduction. There are major updates to chapters on energy auditing, lighting systems, boilers and fired systems, steam and condensate systems, green buildings waste heat recovery, indoor air quality, utility rates, natural gas purchasing, commissioning, financing and performance contracting and much more with numerous new and updated illustrations, charts, calculation procedures and other helpful working aids.