Analyzing contributions of consumers to microgrids by using Shapley Value

Abstract

Microgrids enable efficient use of power and heat by interchanging surplus power from distributed power sources within a region. Recently, the microgrids are emerged as a mean to reduce greenhouse gas emissions. Although there have been many studies focusing on the effect of microgrids, the large part of these studies evaluated the performances of microgrids as a whole. On the contrary, this study focuses on the characteristics of each consumer consisting microgrids, and quantitatively investigates which consumers mainly contribute to cost and CO₂ reduction in microgrids. The Shapley value is adopted as an index of contributions by each consumer, and adopted to analyze the conditions under which microgrids can be established in the real world. As a result, I found that the key consumers to form microgrids are those who supply large amounts of electricity to other consumers.