Home Battery for Beginners: Everything You Need to Know

What is a home battery?

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.

How does a home battery work?

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:

• Charging: the battery charges with solar power or cheap grid electricity (with dynamic tariffs)
• Storing: the energy is safely stored in lithium cells
• Discharging: when you need electricity, the battery supplies it to your household
• Smart management: the Battery Management System (BMS) automatically controls charging and discharging
• Monitoring: via an app on your phone, you can see what's happening in real time

Do I need solar panels?

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:

With solar panels (most popular)

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 €300–€800 per year.

Without solar panels (dynamic tariffs)

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 €150–€400 per year.

Combination of both

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 €600–€1,000+ per year.

What types of home batteries are there?

There are two main categories of home batteries. The difference lies in the installation method:

• Plug & play (low voltage): you connect them yourself to your micro-inverter or power socket. No electrician required. Examples: Anker SOLIX Solarbank 2 Pro, Zendure SolarFlow.
• Hardwired (high voltage): installed by a certified installer and connected to your consumer unit. Higher capacity (10–30 kWh). Examples: Anker SOLIX X1, Dyness Tower, Huawei LUNA.
• Compact balcony systems: specifically for apartments, connected to balcony solar panels. Example: Anker SOLIX Solarbank 2 E1600.
• Modular systems: start small and expand later with additional battery modules. Most brands offer this option.

What does a home battery cost?

Prices have dropped significantly in 2026. Here is an overview of the common price ranges:

Keep in mind that plug & play systems typically have no additional installation costs. For hardwired systems, expect €500–€1,500 for installation by a certified installer.

First steps: how do you get started?

Ready to get started? Follow these steps:

• Step 1: Determine your consumption. Check your annual statement to see how many kWh you use per year.
• Step 2: Do you have solar panels? If so, how much do they produce? Check your inverter app.
• Step 3: Use our savings calculator to calculate how much you can save.
• Step 4: Compare models in our webshop or request personal advice.
• Step 5: Order and install. With plug & play, you can start saving the same day.

Conclusion

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.