  Customer segmentation analysis can give valuable insights into the energy
efficiency of residential buildings. This paper presents a mapping system,
SEGSys that enables segmentation analysis at the individual and the
neighborhood levels. SEGSys supports the online and offline classification of
customers based on their daily consumption patterns and consumption intensity.
It also supports the segmentation analysis according to the social
characteristics of customers of individual households or neighborhoods, as well
as spatial geometries. SEGSys uses a three-layer architecture to model the
segmentation system, including the data layer, the service layer, and the
presentation layer. The data layer models data into a star schema within a data
warehouse, the service layer provides data service through a RESTful interface,
and the presentation layer interacts with users through a visual map. This
paper showcases the system on the segmentation analysis using an electricity
consumption data set and validates the effectiveness of the system.
