Do you need a battery?

Solar panels will generate electricity when there is sunlight and you can use solar power instead of buying it from your electric supplier.

You don't need a battery to run your solar panels? No but a battery will help you get the most out of your solar panels by storing the electricity.

If you don't have batteries, you're going to switch back to your electrical supplier - which is going to cost you money. If you have installed a battery you can use the power you have stored at night time. By doing this, you reduce your dependence on an electrical supplier.