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An energy systems management method includes steps of providing a hierarchically arranged, interrelated set of synoptic displays interfaced to an energy system for receiving information from and providing command inputs to the energy system. One synoptic display of the set of synoptic displays is an

An energy systems management method includes steps of providing a hierarchically arranged, interrelated set of synoptic displays interfaced to an energy system for receiving information from and providing command inputs to the energy system. One synoptic display of the set of synoptic displays is an overall energy synoptic, and the other synoptic displays of the set of synoptic displays are synoptics displaying the status of corresponding energy systems. The method also includes steps of acquiring human inputs through the synoptic displays, for example, by means of a computer user interface device, and controlling the energy system by processing the human inputs through the synoptic displays to provide command inputs to the energy system.

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An energy systems management method includes steps of providing a hierarchically arranged, interrelated set of synoptic displays interfaced to an energy system for receiving information from and providing command inputs to the energy system. One synoptic display of the set of synoptic displays is an

An energy systems management method includes steps of providing a hierarchically arranged, interrelated set of synoptic displays interfaced to an energy system for receiving information from and providing command inputs to the energy system. One synoptic display of the set of synoptic displays is an overall energy synoptic, and the other synoptic displays of the set of synoptic displays are synoptics displaying the status of corresponding energy systems. The method also includes steps of acquiring human inputs through the synoptic displays, for example, by means of a computer user interface device, and controlling the energy system by processing the human inputs through the synoptic displays to provide command inputs to the energy system. tion where said measurement electrode member contacts the developer when mounted in said developer vessel, has at least a pair of portions parallel to each other at a predetermined interval, and has an input electrode for receiving a voltage from the apparatus main body and an output electrode for outputting an electrical signal in accordance with an electrostatic capacitance generated upon application of the voltage, a reference electrode member which is arranged at a position where said reference electrode member does not contact the developer when mounted in said developer vessel, has at least a pair of portions parallel to each other at a predetermined interval, and has an input electrode for receiving a voltage from the apparatus main body and an output electrode for outputting an electrical signal in accordance with an electrostatic capacitance generated upon application of the voltage, an adhesion member to which said measurement electrode member is adhered, a lid member which is coupled to said adhesion member and covers said reference electrode member interposed between said adhesion member and said lid member, and an engaging portion which engages with said vessel positioning member when said detection unit is attached to said developer vessel, and positions said detection unit with respect to said developer vessel. 7. A vessel according to claim 6, wherein said measurement electrode member and said reference electrode member include flexible boards. 8. A vessel according to claim 6 or 7, wherein said reference electrode member is adhered to a surface of said adhesion member opposite to a surface to which said measurement electrode member is adhered. 9. A vessel according to claim 6 or 7, wherein said adhesion member has a passage which lets air escape so as not to seal air between said adhesion member and said measurement electrode member when said measurement electrode member is adhered. 10. A vessel according to claim 8, wherein said adhesion member has a passage which lets air escape so as not to seal air between said adhesion member and said measurement electrode member when said reference electrode member is adhered. 11. A vessel according to claim 6, wherein said developer vessel further comprises developer removal means for removing a developer deposited in a detection region of said measurement electrode member. 12. A process cartridge detachably attachable to an electrophotographic image forming apparatus main body, comprising: an electrophotographic photosensitive member; a developing member which develops an electrostatic latent image formed on said electrophotographic photosensitive member with a developer; and a developer vessel which stores a developer to be supplied to said developing member, said developer vessel having a developer storage portion, a positioning member, and a detection unit for outputting an electrical signal in accordance with an electrostatic capacitance to the apparatus main body in order to detect a residual amount of developer in said developer vessel by the apparatus main body, said detection unit having a measurement electrode member which is arranged at a position where said measurement electrode member contacts the developer when mounted in said developer vessel, has at least a pair of portions parallel to each other at a predetermined interval, and has an input electrode for receiving a voltage from the apparatus main body and an output electrode for outputting an electrical signal in accordance with an electrostatic capacitance generated upon application of the voltage, a reference electrode member which is arranged at a position where said reference electrode member does not contact the developer when mounted in said developer vessel, has at least a pair of portions parallel to each other at a predetermined interval, and has an input electrode for receiving a voltage from the apparatus main body and an output electrode for outputting an electrical signal in accorda