Sizing and Operation Optimization for Renewable Energy facilities with Demand Response in Micro-grid

A program called demand response (DR) is recently attracted attention because of the background of constraints on energy supply and the weakness of centralized energy systems, etc., appeard after the Great East Japan Earthquake. Real-Time Pricing (RTP) is a type of DR allows consumers to adjust the power consumption by reflecting the wholesale electricity price formed according to time in the electricity rate. In this paper, Photovoltaic (PV) and Wind Generator (WG) and Diesel Generator (DG) are used as the main power sources in Aguni-Island in Okinawa prefecture, where the peak demand is 1 MW. This study presents the operation schedule of DG and Battery Energy Storage System (BESS). It also evaluates the optimal capacity method of the equipment when DR is taken into consideration.