The general objective of this study is to estimate the relationship between electricity consumption, economic performance and the price of electricity in four sectors namely the industrial, commercial, mining and agricultural by using the panel data approach on leading ASEAN countries. The present study intends to contribute significantly to the existing literature by presenting a comprehensive approach of the issue of electricity consumption in Thailand. The information of electricity consumption in the industrial, commercial, agricultural and mining sectors is essential to understand the magnitude of the sectors’ sensitivity to change with respect to GDP and electricity price. Moreover, real electricity price is incorporated in this study to provide a more consistent result. The findings are important for researchers and academicians by providing a better knowledge of sectoral electricity demand to permit better regulatory decisions in order to facilitate economic efficiency. Apparently for the policy makers, it will be possible that the approach of this study could be useful as a guideline to facilitate the adoption of a more appropriate model for electricity demand management as well as restructuring the electricity sectors. Furthermore, the findings of this study will be helpful in the formulation of effective energy and pricing policies in order to encourage consumers towards the efficient use of energy for the future of sustainable energy and development.