Unlike most electric loads, electric vehicles are mobile. Consequently, one cannot necessarily know that an electric vehicle will be configured safely for any of the charging stations at which it might try to charge. Limitations might be imposed by any of the components, including battery packs, power electronic chargers, premise plug and wiring infrastructure. Furthermore, preferences (and perhaps hard limits) will be imposed by the electric utility, which might insist, for example, that electric vehicles charge off peak, or by vehicle owners, each of whom might wish to assert preferences that will affect charging costs and convenience. This invention describes a fuzzy approach for accommodating such limits and preferences from numerous sources.