Parkway Atrium Building, Herndon, Virginia, USA, 2010 The Parkway Atrium Building is a 23 year old four story 184,000 sqft Class B office building located in the suburbs of Washington DC. The building was constructed as a spec building and has been through numerous small changes and a major renovation in 2004. In 2006 a new management of the building began to identify and implement energy conservation methods. In 2007 the building was benchmarked for an Energy Star with a score of 72 and a goal of obtaining a minimum Energy Star Rating of 75. It was then decided that a full building controls upgrade would proceed in a phased implementation over four years. After examination of various solutions the decision was made to implement a LonMark System using LNS® (LonWorks Network Services). The

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