A solar on-grid system with DG synchronization seamlessly integrates solar power, the electrical grid, and a diesel generator to ensure a reliable and continuous energy supply. Solar panels convert sunlight into electricity through an on-grid inverter, synchronizing the power with the electrical grid. During periods of low solar production or high demand, an automatic transfer switch (ATS) facilitates the smooth integration of a diesel generator. This synchronized system optimizes energy usage, ensuring uninterrupted power by automatically switching between solar, grid, and diesel generator sources. The setup is beneficial in locations with intermittent grid access or unreliable power, providing energy resilience and sustainability. Additionally, the integration with the grid allows users to take advantage of net metering, potentially reducing energy costs and promoting a more efficient and environmentally friendly energy profile.