A method includes monitoring an available amount of electrical energy on an electrical power grid for powering one or more loads at one time. The available amount of electrical energy represents an amount of electrical energy that may be consumed at one time without exceeding a grid capacity. The method also includes monitoring an electrical energy demand of plural electric vehicles traveling on a network of routes that includes one or more conductive pathways extending along the routes for delivering the electrical energy from the electrical power grid to the electric vehicles. The method further includes controlling movements of the electric vehicles such that the electrical energy demand of the electric vehicles does not exceed the available amount of electrical energy on the electrical power grid.