A home battery stores energy — usually from your solar panels — so you can use it later instead of drawing from the grid at peak prices. It can also keep essential circuits running during an outage. But is it worth it, and how do you choose? Let’s break it down.
What a battery actually does
Solar panels generate the most power in the middle of the day, when many households use the least. Without a battery, that surplus is exported to the grid for a low price. A battery lets you store it and use it in the evening — using more of your own energy and buying less from the grid.