NREL developed the Geospatial Toolkit (GsT) — a map-based software application that integrates resource data and geographic information systems (GIS) — for integrated resource assessment. A variety of agencies within countries and global datasets provided country-specific data. For some countries, NREL has developed a HOMER GsT version of the toolkit, which contains all of the features of the standard GsT and also integrates HOMER, an optimization model for distributed