Title: Geothermal development plan: Graham/Greenlee Counties
Abstract: The Graham/Greenlee County Area Development Plan evaluated the region-wide market potential for utilizing geothermal energy. The study identified five potential geothermal resource areas with temperatures less than 100{sup 0}C (212{sup 0}F). In addition, seven areas are inferred to contain higher temperature resources with the Clifton Hot Springs area having electrical potential. Geothermal resources are found to occur near Safford and Clifton, the two major population centers. Future population growth in the two counties is expected to average less than two percent per year over the next 40 years. Growth in the mining, trade and services economic sectors provide opportunities for the direct utilization of geothermal energy. A regional energy use analysis is included containing energy use and price projections. Water supplies are found to be adequate for urban needs, though agricultural and mineral water use may be limited in the future. The study also contains a preliminary economic analysis for two district heating systems as well as a section matching geothermal resources to potential users.