Do I need to install solar batteries with my solar power system?
Solar power systems that include solar batteries, known as solar-plus-storage, are increasingly popular, but can be pricey. Luckily, batteries are not necessary for most solar homeowners. As long as you are connected to the grid, your system does not need a battery: excess power goes back into the grid, and you can draw from the grid if you need more electricity than your panels can generate.

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