Development of reliability based Demand response program in Korea

DR (Demand response) has an important role in electricity power market by reducing load quantity instead of increasing generation for balancing demand and supply. DR resources are regarded as an extra tool of balancing supply and demand in emergency condition. Also, DR resources can be used in normal condition or used for the purpose of maintaining the reserve rate. Because of the characteristics of Korean electricity market, reliability based DR programs are researched and implemented preferentially. For example, summer vacation period reduction program, DLC (Direct Load Control) and demand bidding market were operated for reliability-based DR program. This paper describes novel DR prospects for Korea considering smart grid environment. The Korean electricity community plans to transit the conventional DR system to novel DR system and decides to develop several DR reliability programs more. The novel DR system is composed of forward DR market, day-ahead DR market and real-time DR market. In this paper, time-line, information flows and the specification of proposed reliability based DR program are described briefly.