Modern studies on green technologies for transportation sector are attaining attraction among the research communities from diverse parts. We learn the significance of plug-in hybrid electric vehicles which play a key role toward the policy option to reduce the environmental concern. There are major uncertainties in the diffusion of electric vehicles timing of market diffusion among consumers. However, there has been a considerable effort made towards the benefit of electric vehicles demand. Yet, the debates on consumer behavior towards the adoption of electric vehicles are less recognized. Researcher's highlighting the significance of plug-in hybrid electric vehicles from a combined perspective considering V2G technology which allows bi-directional flow of electricity. On the other hand, when electric vehicles are recharged from electricity produced from conventional technology power plants such as oil or coal-fired plants, they may produce equal or sometimes more greenhouse gas emissions than conventional gasoline vehicles. © 2017 by IGI Global. All rights reserved.