
New to the world of home batteries? This complete beginner's guide explains everything: what it is, how it works, and whether you need one.
A home battery is a rechargeable energy storage system that you install at home. It stores electricity that you can use later. Think of it as a large power bank, but for your entire house. Most home batteries use lithium iron phosphate (LFP) technology: the same proven technology as in electric vehicles, but optimised for home use.
A home battery is not the same as a backup generator. A generator produces electricity (from fuel), while a battery stores electricity that you previously generated or purchased. Most home batteries range in capacity from 1.6 kWh to 30+ kWh, depending on the model and your needs.
The principle is simple. Your home battery charges when there is a surplus of electricity (for example, during the day when your solar panels produce more than you consume) and delivers that stored electricity back when you need it (for example, in the evening). These are the basic steps:
No, that's not strictly necessary. The most common combination is solar panels + home battery, but you can also use a home battery without solar panels. There are two main scenarios:
You store surplus solar energy instead of feeding it back to the grid. With the end of the net metering scheme in 2027, you'll receive less and less for exported electricity. By storing that electricity and using it yourself, you save ā¬300āā¬800 per year.
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With a dynamic energy contract, electricity prices fluctuate hourly. Your battery automatically charges when the price is low (sometimes even negative) and supplies electricity when the price is high. This can yield ā¬150āā¬400 per year.
Maximum savings are achieved with solar panels and a dynamic contract. You charge with free solar power and cheap grid electricity, and consume when prices are high. Savings: up to ā¬600āā¬1,000+ per year.
There are two main categories of home batteries. The difference lies in the installation method:
Prices have dropped significantly in 2026. Here is an overview of the common price ranges:
| Type | Capacity | Price range |
|---|---|---|
| Balcony / compact | 1.6 – 2.4 kWh | €699 – €999 |
| Plug & play | 3 – 6 kWh | €999 – €2,499 |
| Hardwired | 5 – 30 kWh | €2,500 – €10,000+ |
Keep in mind that plug & play systems typically have no additional installation costs. For hardwired systems, expect ā¬500āā¬1,500 for installation by a certified installer.
Ready to get started? Follow these steps:
A home battery is a smart investment that lowers your energy bill, makes you more independent from the grid, and prepares you for the end of the net metering scheme. With current prices and simple plug-and-play installation, the barrier to entry is lower than ever.
At Home Energy Solutions, we're happy to help you get started. Whether you're a beginner or already experienced: we offer independent advice, competitive prices, and a wide range of the best brands. Get in touch for a no-obligation consultation.
Browse our range or use the savings calculator to see how much you can save.
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