Solar systems do not necessarily require a battery. The battery is only required if you want to store excess energy

Because solar panels produce their electricity when the sun is shining, a battery is a great asset if you want to use solar generated electricity at night.

The short answer is yes.

• Installing a system of solar panels on your home can reduce your power bills and even provide a profit. 

• It costs approximately 5 cents per kilowatt-hour (kWh) to produce solar power, and it costs approximately 26 cents per kWh to purchase from the grid.
  

• The general rule is that in NSW, a residential solar system can save around $400 annually, per kW of production capacity. A potential savings of $2000 annually.