The use of windows in buildings plays a crucial role in creating a human-friendly environment. However, windows are not as insulating as walls and thus contribute significantly to heat loss and gain, making it necessary to use additional energy to maintain comfortable temperatures inside buildings. High performance windows, with improved insulating ability are excellent options for reducing energy consumption and cost. Aerogel, a highly insulating material could form the basis of a new type of high performance window. However, the traditional method for manufacturing aerogels is challenging and expensive. Union College's Aerogel Lab has developed a faster, less expensive and easier-to-use supercritical extraction technique for making aerogels. The goal of this project is to scale up the size of the aerogels made at Union and construct a demonstration aerogel window for display on campus. This presentation will review the challenges associated with scale up and present latest progress in the design of an aerogel window prototype.