LEED

LEED is an acronym which stands for "Leadership in Energy and Environmental Design." It is effectively a metric system which is used to determine how energy efficient a structure is.While many other types of certifications are binary, LEED operates off of a tiered point system. Depending on the level of efficiency the building demonstrates there are multiple levels of certification which can be earned. These rankings are as follows for a LEED Certified Building. 

Energy Saving

Water Reuse

Less Waste

Indoor Environment   Quality

Innovation

Sustainable Sites