As electric vehicle (EV) sales increase rapidly in many areas around the world, more and more people are searching for reliable, long-term, and durable charging stations for their EVs. The need for charging stations is even greater in places where the grid is unstable or where there are few options for solar or wind energy. In this paper, we report our experience with a hybrid system created to allow EV chargers to use both renewable energy (solar PV and wind) and fossil fuels (diesel generator) to charge EV batteries. Using this concept, we have designed a charging station that can operate off of the grid, or in connection with the grid, so that EVs can always be charged. We also analyze two different intelligent energy management systems (EMSs) designed to manage energy from various sources: battery-centric control and wind-priority control (WPC). The battery-centric control strategy uses a fuzzy-logic-based EMS to coordinate power flow between all three energy sources (solar, wind, and diesel generator) based upon real-time measurements of renewable energy availability, battery state of charge (SOC), and load demand as well as diesel generator operating constraints. Our dynamic model captures the real-life operation of a charging station including both intermittency of renewable energy and variability of electric loads associated with EVs. We discuss the overall efficiency of our system in detail. Simulation outcomes verified stable DC link voltage regulation, low total harmonic distortion (less than 5%), effective battery state of charge control, and reduction in diesel generator run time when utilising both techniques. A comparative evaluation confirms that battery-centric controlled charging patterns offer superior load stability versus wind-priority controlled charging which maximises the amount of renewables that can be supplied to an electric vehicle simultaneously with less wear on the batteries. Therefore, the results support the development of hybrid renewable/diesel electric vehicle chargers as a feasible and scalable option for managing the integration of electric vehicles into the electric grid in renewable resource rich locations, as well as areas of electrical grid congestion due to limited grid capacity