ASHRAE - American Society of Heating, Refrigerating and Air-Conditioning Engineers
"The Green Standard": 189.1-2009 Developed by ASHRAE in conjunction with USGBC and IES (Illuminating Engineering Society of North America), A Standard for the Design of High-Performance Green Buildings, provides a ‘total building sustainability package’ for those who strive for green buildings. An excellent reference when working with engineers and architects.
Energy Star -
ENERGY STAR is a government-backed program helping businesses and individuals protect the environment through superior energy efficiency.
Energy Star Programs and Products Government resource site for products, buildings, home improvement and repair. Templates for energy management. Publication “Putting Energy into Profits" (pdf) offers good tips for business owners on implementing steps to manage energy costs.