Local Self Power Supply Systems and Power Supply to the Outside

Abstract

Establishment of local power supply system is important and effective. The system consists of direct use of power generated from renewable energy, storage of surplus power in the form of synthesized natural gas, methane, regeneration of power by natural gas power plant using methane and the use of warm water formed. The surplus power will be used to water electrolysis to form hydrogen and oxygen. Hydrogen will be used for methanation of carbon dioxide captured from the power plant. Methane will be used for regeneration of stable power. Oxygen generated by water electrolysis will be used for combustion of methane at the power plant after dilution with carbon dioxide captured at the power plant. Warm water discharged from the power plant will be used in the local area. In this system, carbon will be recycled between the methanation plant and the power plant. The exhaust gas does not contain nitrogen because oxygen diluted with carbon dioxide is used for methane combustion instead of air, and carbon dioxide capture from the exhaust gas is easily carried out. Captured carbon dioxide is used for methane formation and dilution of oxygen. The excess power supplied to the outside will support industry, transportation, etc.