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The lack of hydrogen fuel stations is a major barrier to the introduction of hydrogen vehicles. Given the high cost of constructing hydrogen stations, it is desirable to build as few stations as possible while still adequately serving consumers. Although several studies have addressed the general question of how many stations are needed, the literature has been largely silent on how to relate the location of stations to the sufficient number of hydrogen stations. A geographic information system (GIS) provides a tool for evaluating station siting decisions as part of a greater hydrogen network. A GIS model was developed for siting generic hydrogen stations in Sacramento County, California, with the economics of supplying those stations with hydrogen ignored for now. The analysis used average one-way driving time from home or work to a station as a metric to evaluate scenarios. When a network is posited with 30% as …