Energy Storage


Battery Backup

Battery backup provides you peace of mind so that your life doesn’t get interrupted when the power goes out. In the Carolinas, solar systems stop providing energy to the grid when an outage occurs as a safety precaution, preventing injury to neighbors and energy grid workers. With battery backup, your solar system will be able to continuously keep your house running. Effectively, this creates a “closed loop” system. Once the power has been restored, the system automatically goes back to normal.

Here are a few different examples of how the battery backup system might work in different scenarios:

If The Power Goes Out in The Middle of The Night

The charged battery powers your kitchen and critical appliances such as your coffee maker and garage door opener so you can get to work on time. You have hot water and can charge your cell phone, perhaps you can run a single air conditioning unit. With minimal impact on your energy use, you can enjoy a normal day.

The Power Goes Out for 3 Days

Your solar system charges the battery until full. It allows you to use energy during the day while charging the battery to use at night. Your fridge stays on. You don’t have to worry about eating all the ice cream, or what to do with wild game in that garage freezer!

Maybe your battery is fully charged and your solar system is still producing while the grid is still down. Then it will probably be smart to take advantage of your daylight power, and do your energy-intensive tasks like running the clothes washer during the daytime.

Renu Energy Solutions has trained professionals who will make sure your battery is configured to stretch your stored power as long as possible in the event of a multi day-long outage. Our team will work with you to make your that the essential powered services in your home that you rely on – your kitchen appliances, garage door, maybe your bedroom air conditioner unit, and critical electronics – will stay energized until the power has been restored. You can even set up your battery with special programming to help you make the most of your solar and avoid using more utility power than you have to.

If you’re interested to hear about one of our energy storage success stories, learn about the first Sonnen battery installed in South Carolina. Some customers in the outer portions of the metro Charlotte area and in Greensboro and Winston-Salem have unique reasons to go solar with storage having to do with the solar connection programs that they have access to. Renu Energy can help you understand the advantages of using storage with your solar for different utility and coop customers, whether you’re in upstate South Carolina or North Carolina.


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