ELECTRIC POWER SUPPLY SYSTEM TO PORT FACILITIES BY USE OF OFFSHORE WIND ENERGY AND ITS REDUCTION EFFECT OF CARBON DIOXIDE

Abstract

In Japan, the power grid is regionally divide by utility companies, then the wind power potential is not effectively developed. The purpose of this research is to establish the stand-alone power generation system by means of offshore wind power generation in ports and coastal area. It is necessary to know the variance characteristics of demand of electric power in port facilities. This paper shows investigated the electric power usage in two ports those are located at the west coast of Hokkaido and the northernpart of Kyushu. The time variance characteristics of electric power consumptionin a port are estimated depends on wharf operation data such as cargo handling and so on. The difference of demand in the port facilities and supply by wind energy generation by use of offshore wind turbinesis analyzed. The countermeasure to reduce the gap of demand and supply with the storage battery system is also discussed. And its reduction effect of carbon dioxide is analyzed.