A Fuzzy Utility-Based Multi-Criteria Model for Evaluating Households’ Energy Conservation Performance: A Taiwanese Case Study

Sung-Lin Hsueh

doi:10.3390/en5082818

Abstract

Industry and economy are developed to satisfy the needs and material desires of people. In addition to making high greenhouse gas emissions the responsibility of industry, individuals and families should also be held responsible for the production of greenhouse gas emissions. In this study, we applied the Delphi method, the analytical hierarchy process, utility theory, and fuzzy logic theory to establish an energy conservation assessment model for households. We also emphasize that subsidy policy makers should consider the social responsibility of households and individuals, as well as sustainability of energy conservation.

Highlights

Previous studies have discussed informational strategies for influencing the knowledge, perceptions, cognitions, motivations, and norms of individuals, and structural strategies for influencing the context in which decisions are made [1]
Previous household energy use studies have focused primarily on social and psychological factors that influence the acceptance of energy-saving measures
This study developed a model that combines the Delphi method, analytical hierarchy process (AHP), utility theory, and fuzzy logic theory

Summary

Introduction

Previous studies have discussed informational strategies for influencing the knowledge, perceptions, cognitions, motivations, and norms of individuals, and structural strategies for influencing the context in which decisions are made [1]. The Taiwanese government has worked continuously to decrease greenhouse gas emissions, rigorously promoting electricity, water, and oil saving policies and implementing subsidies for household electricity and water conservation and fines for increased usage [11]. These subsidies include a monthly household subsidy for electricity and water conservation, which can be used to purchase electricity and water-saving appliances, and a subsidy to install energy-saving equipment. One factor for Taiwan’s consistently high greenhouse gas emissions is the long-term energy-wasting habits of people This is a systemic social phenomenon that would be difficult to improve effectively and immediately through the implementation of policy. A case study is used to show the applicability of the proposed model

Model Overview

Application of AHP and Utility Theory to Examine x1 Criterion Data Properties

The Fuzzy Logic Inference System

Model Development

Findings

Conclusions