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Project Details

Author(s) Haobing Liu, Georgia Institute of Technology
Co-Author(s) Michael Rogers, Georgia Institute of Technology; Randall Guensler, Georgia Institute of Technology
CTEDD Funding Year 2019 General RFP
Project Status In Progress


The development and deployment of Plug-in Electric Vehicles (PEVs) helps reducing energy use, achieve greater energy security, decrease emissions, and provide operating cost stability. To help consumers overcome the higher initial purchase costs of PEVs, and to help promote PEV adoption, government agencies and electric utilities have offered incentives of various design. While the PEV population has grown rapidly since 2011, the PEV market share and the demographics of PEV users varies significantly within and across regions. This proposed research examines the distribution of benefits associated with consumption of PEV incentives across demographic and geographic groups in the Metro Atlanta area. The beneficiaries of the PEV incentives will be identified and benefits will be quantified using models, monitored data, and new surveys. The accessibility of incentives across demographic groups will also be evaluated to identify any barriers to incentives participation across household income and other demographic group(s), including the eligibility and credit amount. For example, income tax credits for PEV purchases or leases implemented in Georgia prior to 2015 were not accessible to many low-income household groups because credits could only be applied to taxes owed. A comparative analysis of sociodemographic characteristics of PEV users vs. non-PEV users will be conducted by geographic region, household size and structure, household vehicle ownership, etc. The differential impacts of energy saving and emission reductions associated with replacing conventional vehicles with PEVs will also be quantified across these groups to highlight the distribution of these supplemental benefits. The study findings are expected to help decision-makers identify any potential distributive justice issues concealed within existing incentive policies. The research team will then identify potential PEV purchase incentives that could be implemented that might provide additional energy saving and emissions reductions designed to enhance the distributional benefits to minority, low-income, disability, and other potentially underserved communities that may not have benefitted from traditional incentive programs.