This paper presents the evaluation of the potential of integrating battery electric vehicles into the energy structure of a commercial company. First, this evaluation is done by analyzing fleet test data of 35 commercial vehicles. The goal is to evaluate how long and how often a commercial vehicle is parked at the company location. Second, smart meter data which was recorded over a period of three years for one commercial company is analyzed. The recorded data displays the time dependent energy flow of energy producers (photovoltaic systems, combined heat and power systems), energy consumers (base load of the company, different household consumers) and energy used to charge a battery electric vehicle. The goal is to evaluate the potential of a technically and economically rewarding integration of battery electric vehicles in commercial companies. The energy used to charge the electric vehicles will be evaluated to define the degree of integration into the total energy structure. It will be compared to the total energy within the system to determine the potential of enhancing profitability while charging. Furthermore those results will be compared to an exemplary private household (smart home).