BGR Consulting Engineers uses the program eQUEST® as a building energy use analysis tool. eQUEST® is a sophisticated, yet easy to use program, allowing any member of the design team to perform a detailed simulation of the building design without the need for extensive experience in energy modeling. By utilizing a step by step graphical procedure, users can create an effective model of the proposed building design. Features such as: HVAC equipment, building type and size, floor plan layout, construction materials, window sizes, building orientation and lighting control systems can be evaluated to determine their impact on energy usage.