We save you energy and cut costs in buildings by employing the Barkley approach to energy savings. The Barkley Building Energy Efficiency Program is systematic and automated. Our approach improves energy savings accuracy and reduces retrofit costs. During the energy audit process, we install data collection systems which give us a more accurate measurement of energy usage before, during and after the retrofit. Rebates and financing are available. In addition, we can cut costs by training a client’s staff to perform data collection and monitoring of building energy usage for the Barkley Group during and after the audit and retrofit process is completed. Our technical process is tailored to fit each client’s needs, whether it is for one or hundreds of buildings. We use the best instrumentation and available technology to insure satisfactory results. Barkley Group Approach in a nutshell! Barkley Group Approach (Details). We use computer models of buildings to calculate the expected energy usage for heating and cooling, as loads vary with changing outside weather – temperature, sun, and wind conditions. There are many excellent software packages out there for analyzing energy usage in buildings. A widely accepted package is DOE-2. Another system, which is layered on top of DOE-2, is Green Building Studio by Autodesk Green Building Studio and also, Revit Energy Analysis System The expensive part of analyzing the energy usage of a large number of buildings is getting the correct information about the buildings into the computer. This information includes but may not be limited to; data about building envelope area, window type and area, heating and cooling system types, manufacturers, size and seasonal energy efficiency, wall and roof thermal resistance numbers or U values, building ventilation fans. Small errors in data can result in large errors in predicted building energy usage.