Impact on utilization factor with increasing wind power penetration level in Jeju Island

Many Korean companies are eager to construct wind farms in Jeju Island, thanks to the Government´s policy of supporting renewable energy. Total capacity of planned wind farm is 250MW and government´s target is 500MW. At the same time local government of Jeju Island has plans to build new 300MW LNG power plant or 400MW HVDC#2 with mainland. However local power demand of Jeju Island will not be increased largely in near future. Therefore the utilization factors of conventional units are to be decreased significantly. Over construction compare with scale of Jeju power system is worried in this case, it is needed to verify the feasibility of both plans. In this research, the impact on utilization factor of conventional units and HVDC transmission with increased wind power penetration level is presented. And impact of devices planned - LNG, HVDC- is also investigated. The best way for Jeju Island case to increase wind power is presented in this paper.