NOVELTY - The system (20) has an energy source (23) comprising a fuel cell (24) and a fuel module (26) that are located in a remote area for providing electrical energy, heat energy, and a by-product. A supplemental fuel source (28) is located within physical boundary e.g. canister. A set of galley devices and a set of lavatory devices are located in an interior cabin (30) of an aircraft, and receive the electrical energy, the heat energy, and the by-product. A set of connectors connects the electrical energy, the heat energy, and the by-product with the system.    USE - Aircraft galley and lavatory energy system i.e. localized utility power or energy system, for distributing energy e.g. electrical energy and heat energy, to a power device e.g. utility load such as cargo container e.g. built-in heating and cooling systems, and in-flight entertainment system, galley oven, galley coffee maker, galley faucet, compartment in food and beverage cart, lavatory faucet, and refrigerator of a galley and lavatory in a vehicle i.e. aircraft (all claimed) such as airplane. Can also be used for an automobile, truck, maritime vessel, and a recreational vehicle.    ADVANTAGE - The system avoids the necessity of the separate aircraft energy generating system for the galley and the lavatory, thus reducing complexity, weight, and cost of an overall power system, improving flexibility in an installation, and simplifying the control and protection. The energy source is more efficient, thus reducing total power consumption of the aircraft. The fuel cell is arranged close proximity with the fuel source, thus minimizing the wiring connection length and the electrical loss, and increasing reliability of the power device.    DETAILED DESCRIPTION - The set of connectors is selected from a group comprising an electrical power wiring (38), a water heater line (34, 46), a fuel cell line (74), a drain line (54), communication and control wiring, and protection wiring. The fuel cell is selected from a group comprising a polymer exchange membrane (PEM) fuel cell, alkaline fuel cell, direct methanol fuel cell, enzyme based fuel cell, regenerative fuel cell, phosphoric acid fuel cell, solid oxide fuel cell and high temperature polymer exchange membrane (PEM) fuel cell. The by-product is selected from a group comprising water, waste heat, and waste electricity. An INDEPENDENT CLAIM is also included for an aircraft comprising an aircraft structure.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a localized utility energy system.    Aircraft galley and lavatory energy system (20)    Energy source (23)    Fuel cell (24)    Fuel module (26)    Supplemental fuel source (28)    Interior cabin (30)