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The emerging national effort to commercialize electric vehicles (EVs) has significant potential for impact on utility load curves and distribution feeder systems. With the implementation of national energy goals, utilities recognize the need to identify the interactions between large-scale use of EVs and utility operations. Since utilities will have to provide the needed energy and “live with the impact”, it is appropriate and desirable that utilities participate actively in the national effort to accelerate evaluation and introduction of EVs. This paper discusses the Electric Power Research Institute (EPRI)/Tennessee Valley Authority (TVA) demonstration program, describing the initial testing and evaluation of non-prototype EVs in a real-world environment, the demonstration design, and finally the data acquisition and reporting plans.