We completed a specialized solar system expansion and diagnostic service for a residential client in Los Angeles. Our crew addressed hardware faults in an existing SolarEdge inverter before integrating a new array of high-capacity solar modules. We carefully mapped the electrical configuration to ensure seamless operation between the old and new system components. For the installation phase, we utilized CertainTeed 440W panels and an Enphase IQ Gateway for advanced system monitoring. We also replaced the rapid shutdown switches and optimized the electrical enclosures with updated wiring and circuit protection. This project resulted in a fully functional, expanded solar array with clear communication and significantly improved energy output.