The Split-stacked three phase hybrid ESS is a solar energy storage system that can operate both on and off-grid. It comes with a split hybrid inverter that has MPPT for load-shedding protection, peak shaving, valley filling, back-up power supply, PV self-generation, and self-consumption. The system uses LiFePo4 battery and smart energy management software to efficiently manage solar energy usage throughout the day. It is a safe and long-lasting solution that can provide output of 220V/380V, 230V/400V,240V/415V. The system can connect with solar panels, grid, or generator and store excess solar power for use at night. It also provides reliable emergency backup power during grid outages. Additionally, the system can feedback extra electricity by connecting to the grid and selling it for money. The system detects outages and automatically recharges with sunlight to keep appliances running for days.