There are two types of household energy storage systems: one is off-grid energy storage, which is just needed, and is used in areas without power grids to meet the basic needs of the people; the other is grid-connected energy storage, which has developed rapidly in recent years.
The investment method is mainly used in developed countries and regions with high electricity prices and large peak-to-valley price differences, such as Europe, America and Australia.
Australia launched a subsidy program for household photovoltaic plus energy storage in 2018.
Coupled with the high price of household electricity in Australia, the number of household energy storage installations is very high.
From 2015 to 2020, the number of household energy storage systems installed in Australia exceeds 8 Million sets.