Firstly, how much power stored in the battery do you expect your household will actually use?
What is the difference between your existing power costs and the benefits of a feed-in tariff in your local area?
LG CHEM BATTERIES
Sovereign Solar chooses to use batteries made from reputable electronic giant LG, because they are leaders in solar energy storage systems. LG Chem Batteries are designed to be a stylish addition to your solar system, blending with the aesthetic of most Australian homes. The LG Residential Energy Storage Unit (RESU) is available in three different sizes; 6.5kW, 9.8kW and 13kW. LG Chem is extremely versatile and compatible with a range of inverters.