NOVELTY - The system has an energy distribution facility provided with an energy input and a set of energy outputs. An energy storage device (42) i.e. molten salt type of battery, is coupled to the energy input and one of the set of energy outputs. A charging station is associated with the facility. The charging station is removably coupled with the energy storage device in electric vehicles (88). A set of removable energy storage units i.e. ultracapacitors, is arranged to be moved from the energy storage device into the electric vehicles. The charging station is placed within the facility.    USE - Energy storage system for use in an electrical substation (claimed) on an electrical power network for providing electrical power to an area e.g. residential, commercial mixed-use area and street, and for charging electric based vehicles e.g. taxicabs. Can also be used for limousine.    ADVANTAGE - The system is provided with step-up transformers increasing voltage produced by power generators to high voltage so as to allow long distance transmission of the electric power over main transmission system. The system can be incorporated into transformers, switchgear and fuses according to the requirement so as to ensure safe and efficient operation of the system. The system is provided with a controller that can prioritize usage of the energy storage device based on predefined rules to refuse to charge vehicles when electrical demand is high, or conversely disable a peak-shaving mode, so that sufficient stored energy is available to charge the vehicles.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for the following:    (1) an electrical substation comprising transformers    (2) a method for operating an electrical substation and vehicle charging system.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view illustrating an electrical substation.    Electrical substation (34)    Energy storage device (42)    Voltage switch (68, 72, 74)    Central control (80)    Electric vehicles (88)