Hybrid solar PV system single-line diagram integrating three 8kW Felicity hybrid inverters in parallel (24kW total) with a 15kWh LiFePO4 battery, 21-module PV array, and utility grid connection at 400/230Vac 50Hz. DC and AC protection stages include QF2 battery fuses, QF3 PV isolators with Type II SPD, QF4 AC output breaker, and grid main breaker QF1, feeding a main distribution board with automatic transfer switch and residual current protection. Load distribution splits priority loads (ground floor 10kW) and apartment circuits with 5A backup limits, demonstrating a resilient microgrid architecture for commercial or residential hybrid systems. Fork this diagram on Diagrams.so to customize inverter ratings, battery capacity, or load profiles for your specific site conditions. The design exemplifies IEC 61936 compliance and best practices for hybrid system protection coordination.