Thesis (B.S.) -- Cagayan State University, 2023.
Includes bibliographical references.

The Hybrid - Power Relay Optimizer (H-PRO) is an innovative device designed to serve as an automatic switching device for Hybrid PV Systems. Its primary function is to prevent the leakage of current from the PV system to the grid by automatically disconnecting the connection between the PV system and the grid. Its automatic switching capability, driven by the Arduino Uno's programmed logic, minimizes the need for manual intervention and ensures optimal operation of the PV system. The H-PRO combines advanced switching technology, voltage monitoring through the Arduino Uno, and automatic control mechanisms to effectively prevent current leakage and enhance the performance of hybrid PV systems. The research methodology involved experimentation to evaluate the effectiveness of H-PRO in achieving zero power leakage. The existing Hybrid PV System was enhanced by integrating H-PRO, which enabled the optimization of power utilization. The results of the research indicate a significant improvement in system efficiency after the integration of H-PRO. Zero power leakage was achieved, indicating successful prevention of unnecessary power flow to the grid. This outcome ensures that all the generated power from the PV system is effectively utilized within the hybrid system, maximizing energy efficiency.

Keywords: Hybrid-Power Relay Optimizer, Efficiency Enhancement, Zero Power Leakage, Energy Efficiency, Automatic Switching Capability, Hybrid PV System.