This project, G2V & V2G Bidirectional Power Transfer Integrated with Solar Energy Source, focuses on the design and implementation of an intelligent energy management system that enables two-way power flow between the grid, solar panel, and electric vehicle (EV) battery. The system utilizes an AC-to-DC converter to charge the EV battery from either the grid or solar energy, while an inverter circuit allows excess stored energy to be fed back into the grid. Voltage sensors are used to continuously monitor solar panel output and battery levels, and these parameters are processed by an Arduino microcontroller. Based on real-time conditions, the controller determines the direction of power flow, ensuring efficient utilization of available energy sources and maintaining battery health. The system operates in multiple modes to enhance efficiency and reliability. When sufficient solar energy is available and the battery is not fully charged, the EV battery is charged using solar power. If the battery reaches full capacity and additional solar energy is still available, the system switches to Vehicle-to-Grid (V2G) mode, where excess energy is supplied back to the grid through an inverter. In situations where solar energy is insufficient and the battery level is low, the Grid-to-Vehicle (G2V) mode is activated, allowing the grid to charge the battery using a buck converter. Relay modules are employed for automatic switching between these modes, and an LCD display is used to show real-time system parameters for user monitoring. Furthermore, the system enhances energy reliability and promotes sustainable energy usage by effectively integrating renewable sources with conventional grid supply. Safety features such as over-voltage protection, under-voltage protection, and overcharging prevention are incorporated to ensure secure operation of the battery and associated components.