In this guide, we've tested each option for real-world runtime, charging flexibility, port selection, and ease of use, so you can choose a solar generator for home backup that fits your home, budget, and outage plan. Switching to solar power for a duplex is an exciting way to save on energy bills and reduce your carbon footprint. A solar generator can keep essentials like your fridge, lights, Wi-Fi, and phones running indoors without gas fumes, loud noise, or ongoing maintenance. The EcoFlow DELTA Pro Ultra with 12kWh is best for extended power outages with its massive 90kWh expandability, while the GROWATT HELIOS 3600 excels at budget-conscious whole-home backup with 240V capability. After all, a wise man once said precaution is better than cure. What is a Solar Generator? A.