Why install a home battery?

A domestic battery is the ideal solution for maximizing your home’s energy autonomy. It stores the energy produced by your photovoltaic panels during the day for use in the evening or in the event of a power cut. This considerably reduces your dependence on the electricity grid, while making substantial savings on your bills.

What’s more, installing a domestic battery contributes to the energy transition by optimizing the use of renewable energies. In Wallonia, where subsidies and tax incentives are available, this choice is even more advantageous for private individuals.

The financial benefits of home batteries

By opting for a domestic batteryyou’ll save money in the long term. It allows you to consume the energy you’ve produced without feeding it back into the grid at a lower rate. What’s more, thanks to the subsidies available in Wallonia, you can significantly reduce the initial cost of installation.

Investing in a domestic batteryalso means stabilizing your energy consumption, avoiding electricity price rises, and enhancing the value of your property by increasing its energy score.

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The types of domestic batteries we offer

We offer high-performance domestic batteries tailored to the needs of individual consumers:

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    Lead-acid batteries

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    Lithium-ion batteries

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    Solid electrolyte batteries

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What are the advantages of home batteries?

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    Lower electricity bills

    Store the energy produced by your photovoltaic panels for use when the sun isn't shining, and reduce your dependence on the grid.

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    Greater energy autonomy

    Benefit from electricity available at all times and reduce your exposure to energy price fluctuations.

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    Enhancing the value of your home

    A modern home battery adds value to your property by making it more eco-friendly and independent.

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    Contributing to the energy transition

    By storing and consuming your own green energy, you play an active role in reducing CO2 emissions and promoting renewable energies.

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How to choose a home battery?

How to choose a home battery?

Your energy needs

Evaluate your average consumption to determine the capacity you need.

Compatibility with your equipment

Make sure the battery is suitable for your photovoltaic panels or other renewable energy sources.

The budget

Compare the options available, taking into account the financial aid available in Wallonia.

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How do we go about installation?

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01Audit your installation

Our experts analyze your energy needs and infrastructure to propose the most appropriate solution.

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02Detailed quotation

We provide a transparent quotation and a customized installation plan.

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03Installation on schedule

Our certified technicians guarantee fast, standard-compliant installation.

Our projects

We continually strive to satisfy our customers. We offer tailor-made solutions for your sector of activity.

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Individuals

Storage batteries

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Take the first step towards a sustainable future.

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Why choose Vectura?

We are experts in installing charging stations, photovoltaic panels and storage batteries. Thanks to our recognised expertise, we offer customised, reliable solutions that comply with the most stringent standards. By choosing us, you are opting for a sustainable, economical energy transition supported by a team committed to your satisfaction.

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What's the latest?

Keep up to date with the latest news and legislation concerning storage batteries and renewable energies.

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    Installing solar panels to power your boiler: what you need to know as of 2026

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    Updated on 16 December 2025 Written by Nicolas Nihon Co-founder of Vectura
  • Time for autonomy: the solar storage battery takes over from the inverted meter.

    Illustration de l'auteur
    Updated on 16 December 2025 Written by Nicolas Nihon Co-founder of Vectura

Frequently asked questions

Find answers to frequently asked questions about energy storage batteries.

  • How long does a storage battery last?

    The average service life of a storage battery is between 10 and 15 years, depending on the technology used and the maintenance carried out. Many modern batteries maintain high efficiency throughout this period.

  • Can I add a storage battery to an existing solar system?

    Yes, it is entirely possible to add a storage battery to an existing solar system. Our experts at Vectura can evaluate your current system and integrate a storage solution tailored to your needs.

  • What battery capacity should I install?

    Battery capacity depends on your energy consumption and the output of your solar panels. Our technicians will help you choose a battery capable of storing enough energy to cover your needs during periods of low production.

  • Are storage batteries eligible for aid or subsidies?

    Yes, some regions, such as Wallonia, offer financial aid or bonuses to encourage the installation of storage batteries. These subsidies reduce the initial cost of your investment.

  • Do the storage batteries work during a power cut?

    Yes, in the event of a power cut, the storage batteries can power your home’s essential appliances, provided the system is configured for this. This guarantees energy autonomy even in the event of a power failure.

  • What's the difference between a lithium-ion battery and a lead-acid battery?

    Lithium-ion batteries are lighter, more efficient and last longer than lead-acid batteries. They are also better suited to modern solar home systems, thanks to their ability to recharge quickly and deliver better long-term performance.

  • Does a storage battery require regular maintenance?

    Storage batteries, especially lithium-ion models, require very little maintenance. It is simply recommended to monitor the system via the management tools provided to ensure that the battery is working properly.

How do household batteries work?

 

A domestic battery is a system designed to store surplus electricity generated by photovoltaic panels or captured during off-peak hours. The energy thus conserved is used when production is insufficient, for example in the evening or in the event of a power cut. This guarantees optimized energy management for your home and significantly reduces your bills.

 

Transforming and supplying usable energy

The electricity stored in a domestic battery is converted into alternating current by a built-in inverter, making it compatible with your household appliances. This system ensures a continuous, reliable power supply, even in the event of a power cut.

 

An intelligent domestic battery for a connected home

Modern domestic battery systems include intelligent management, monitoring consumption and state-of-charge in real time. They optimize storage and use cycles to maximize efficiency and extend battery life.

 

Why install a domestic battery in your home?

Investing in a domestic battery allows you to reduce your dependence on the electricity grid while increasing your energy autonomy. It’s an ideal solution for households seeking to prioritize consumption of their own green energy and reduce their environmental impact.

 

Is a home battery profitable for your home?

 

Investing in a domestic battery is a strategic choice that can transform your energy management. Here are the main criteria for assessing its profitability:

 

1. Increase your own consumption

With a domestic batteryyou can store the energy produced by your photovoltaic panels for use when the sun isn’t shining. This increase your self-consumption reduces your dependence on the grid and helps you save on your electricity bills. On average, a battery can increase self-consumption from 30% to 70This can save you hundreds of euros a year. Contact our experts at all about self-consumption !

 

2. Lower costs thanks to the prosumer tariff

In Wallonia, the prosumer tariff is calculated according to the energy drawn from the grid. With a domestic batteryyou can reduce the amount of energy you draw from the grid, which in turn considerably reduces the costs associated with this tariff. This optimization is particularly advantageous for households equipped with a dual-flow meter.

 

3. Energy security and independence

In addition to savings, a domestic battery ensures a continuous power supply in the event of a power cut. This security is invaluable for households wishing to guarantee constant comfort, even in the event of a mains failure.

 

Calculated return on investment

Although the initial cost of a domestic battery may seem high (between €4,000 and €10,000), the savings generated, combined with available subsidies, enable an average return on investment of 7 to 10 years. By installing a battery adapted to your energy needs, you not only maximize your profitability, but also your contribution to a sustainable energy transition.

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This page was written by

Nicolas Nihon

Co-founder of Vectura

A graduate of Maastricht University in 2017 and Rescert-certified since 2021, Nicolas specialises in energy solutions for individuals and professionals, with more than 400 photovoltaic projects to his credit.