Analysis of Wind Energy Status and Capacity Factor of South Korea by EPSIS Wind Power Generation Data

전력통계정보시스템(EPSIS) 풍력발전자료에 의한 국내 풍력발전 현황 및 이용률 분석

This paper reviews the history and status of wind energy in South Korea using the wind power generation statistics (2002~2016) provided by the Electric Power Statistics Information System (EPSIS) and "2015 Renewable Energy Supply Statistics" from the Ministry of Trade, Industry, and Energy. In addition, the prediction accuracy of the Korea wind resource map made by the Korea Institute of Energy Research (KIER) was evaluated through correlation analysis of capacity factor by province between EPSIS and KIER. The average capacity factor of wind energy in South Korea is 23 %, which is in the middle class among the IEA Wind member countries. The monthly capacity factors of EPSIS and KIER showed a high correlation of R²=0.78. It was clearly reaffirmed that the wind energy supply is directly linked to the government's support policy. Therefore, in order to achieve the goal of 20 % renewable energy supply by 2030, establishing effective government policies is a matter of urgency to maximize the market share of domestic wind turbines and to solve conflicts related to environmental regulations and public acceptance.