An on-demand power service provides electrical vehicle charging. Requesting the on-demand power service may include determining a current location of a computing device, determining an amount of power requested by a user of the computing device, and locating a plurality of mobile charging stations within a predefined geographic distance from the current location of the computing device. The method further includes receiving a price associated with each respective mobile charging station among the plurality of mobile charging stations, and providing on a display of the computing device, selectable options to purchase on-demand power from a mobile charging station among the plurality of mobile charging stations.