An LG solar battery can store surplus energy generated from rooftop solar panels for use when needed. When the sun has set, energy demand is high, or there is a black-out, you can use the energy stored in your LG solar battery to meet your energy needs at no extra cost. Unlike a grid-tied solar system which automatically switches off, a battery storage system allows you to keep generating and consuming energy when the grid goes down. In addition, an LG solar battery helps you pursue the goal of energy self-consumption and ultimately energy-independence.