How Much Can You Save With a Home Battery?

Home batteries are becoming more popular as a way to reduce electricity costs. But how much can you actually save?

That depends on your energy use, whether you have solar panels, and what type of electricity contract you have. In this blog, we explain what a home battery can offer in different situations.

Making Better Use of Your Own Energy

If you have solar panels, you often generate more electricity during the day than you use. Without a battery, that extra energy goes back to the grid. Later, when you need power, you buy it again, sometimes at a higher rate.

With a battery, you can store the surplus and use it later. For example, in the evening when the sun is no longer shining. This means you use more of your own energy and buy less from the grid.

What If You Don’t Have Solar Panels?

You can still benefit from a battery, especially if you have a dynamic energy contract. These contracts offer hourly pricing. A battery can charge when prices are low, such as at night or during periods of high wind and solar production, and discharge when prices are high.

In short, you buy electricity at the best moment and use it when it’s most valuable.

So, How Much Can You Actually Save?

It depends on your setup. Here are some general guidelines:

• With solar panels: a battery can increase your self-consumption from around 30 percent to 60–80 percent. This reduces the amount you send back to the grid and lowers how much you buy later.

• Without solar panels: if you have dynamic pricing, you can save tens of euros per month, depending on your energy use and how smartly the battery operates.

Example (indicative)

An average household with solar panels and a home battery could save between €200 and €400 per year. The exact number depends on your contract, energy habits, and battery size.

Is This Useful for Renters?

Yes. A plug-in battery connects to a standard outlet. You do not need to modify your home, and you can take the battery with you when you move. That makes it ideal for renters and apartment residents.

And What If You Add Solar Panels Later?

No problem. Some systems work with or without solar panels. That means you can already start saving today and expand your setup later if you install panels.

In Summary

Whether you produce electricity or not, a home battery helps you use power more efficiently, avoid high peak rates, and reduce your energy costs over time. And with a plug-in system, you can start right away — no installation required.