DISTRIBUTED ENERGY SYSTEMS -- NOTICE TO THE READER -- CONTENTS -- OPERATION PLAN OF A COMBINED FUEL CELLCOGENERATION USING GENETIC ALGORITHM -- INTRODUCTION -- FUEL CELL, SOLAR MODULES, AND GEO-THERMAL HEATPUMP COMBINED SYSTEM -- Scheme of Combined System -- Relational Expression -- Energy Supply Path -- ENERGY BALANCE AND OBJECTIVE FUNCTION -- Objective Function of System -- Multi-objective Optimization -- ANALYSIS RESULTS -- Results of Optimization -- Equipment Capacity -- Objective Function and Characteristics of Operation Plan -- CONCLUSIONS -- ROUTE PLANNING OF HEAT SUPPLY PIPINGIN A FUEL CELL ENERGY NETWORK -- INTRODUCTION -- FUEL CELL NETWORK AND ENERGY BALANCE -- Fuel Cell Network -- Heat Release Model of Hot-Water Piping -- Output Characteristics of the Fuel Cell -- Energy Balance Equation -- Urban Area Model and Energy Demand Pattern -- ROUTE PLANNING METHOD OF PIPING -- Route Planning Method of Piping Using the TSP (TravelingSalesman Problem [19]) -- Analysis Flow of the Search Program of the Piping Route -- CASE STUDY -- Program Check by Shortest Route Search -- Power Generation Capacity of a Fuel Cell -- Result of Route Planning -- Piping Route Plan with a Solar Module -- CONCLUSION -- LOAD LEVELING OF FUEL CELL SYSTEM BYOXYGEN CONCENTRATION CONTROL OFCATHODE GAS -- INTRODUCTION -- SYSTEM DESCRIPTION -- System Structure -- Fuel Cell Performance -- System Operation -- Water Electrolysis -- Energy Balance -- Analysis Method -- CASE STUDY -- Weather Conditions in Tokyo -- Energy Demand Models -- RESULTS AND DISCUSSION -- Operation Planning and Fuel Cell Capacity Reduction Effect -- Town Gas Consumption -- Reformer and Auxiliary Machines Operation -- CONCLUSION -- INDEX.