Geospatial information technologies are reviewed and their application to a renewable energy expansion planning are introduced. In reviews of geospatial information technologies, recent technologies which are concerned with power engineering are explained. Moreover, in an application to renewable energy expansion planning, wind farm selections and expanded transmission network configurations are explained. Since wind farms are scattered in geographically remote areas which are far from demand areas, the construction cost minimization of wind farms and transmission networks is a considerably key issue under a condition which introduced wind powers are more than the target power capacity. Since transmission network configurations are changed according to the selection of feasible wind farms and geospatial conditions, two planning are inseparable and should be processed on the same platforms. Thus, new long-term facility planning software tools for geospatial integrated resource planning are necessary.
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