This foundational document examines the grid impacts of large-scale electric vehicle deployment, with specific focus on commercial and fleet vehicles. It provides utilities with critical insights into load profiles, peak demand impacts, and infrastructure upgrade requirements associated with commercial vehicle electrification. The primer addresses both light-duty and heavy-duty vehicle impacts, offering utilities guidance on grid planning and investment prioritization to support transportation electrification goals through 2030. The analysis includes commercial vehicle load characteristics and their implications for utility distribution systems and generation planning.


