Batteries
Home batteries
A home battery stores electricity — usually from your solar panels — so you can use it later, such as in the evening. Some systems can also provide backup power.
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How a home battery works
During the day, excess solar charges the battery instead of being exported. In the evening, the battery powers your home before you draw from the grid.
How useful a battery is depends on how much solar you export, when you use electricity, and your electricity plan. That's why installers look at your bills before recommending a size.
Frequently asked questions
Do I need solar to get a battery?
Most home batteries are paired with solar so they can store daytime solar energy for use at night. Some batteries can also charge from the grid. Installers can explain what suits your situation.
Will a battery keep my power on during a blackout?
Only if the system is designed and installed for backup. Not every battery setup provides backup power, so ask each installer specifically what will and won't run during an outage.
Can a battery be added to my existing solar system?
Often, yes. Depending on your current inverter, you may need a hybrid inverter or a battery with its own inverter (AC-coupled). Tell us about your existing system and installers will advise.
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