providing quality assurance services for obtaining and maintaining energy efficiency in buildings; providing quality assurance services for obtaining and maintaining HVAC (heating, ventilation, and air conditioning) and building shell energy performance energy efficiency in buildings; providing quality assurance services, information, and protocols for use by technicians to obtain or maintain energy efficiency of buildings, and to insure building systems obtain and maintain energy efficient operation by taking necessary steps using the correct tests with readily available historical and optimal energy operating information; providing quality assurance technical information and analysis to obtain or maintain energy efficiency of buildings by systematic, namely, HVAC systems; providing routine testing, analysis and evaluation of energy efficiency parameters of a HVAC system; providing retesting of HVAC system for compliance with specified criteria, submitting efficiency data to a database, which receives, stores, and supplies system operating information, and confirming improved operating efficiency by reference to known and specified operating efficiency HVAC information; computer services namely, providing a website featuring online non-downloadable software that enables users to enter building energy efficiency data, comparison of secured building energy efficiency data with known and specified operating energy efficiency information