http://www.ue-power.net/home-e....nergy-storage-system China Home Energy Storage System suppliers What is the on and off grid energy storage system? After installing solar panels, the energy generated from them needs to be converted to power for your home, there are a few ways to do this 鈥?you can remain connected to the grid, go completely off-grid, or have a hybrid system. A hybrid system is when your solar panels remain connected to the grid鈥檚 power lines and have a backup battery system to store excess power. It's through an inverter to create usable electricity for use or enter the battery so as to supply power when power cut occu