Two Common Situations

Are you starting from scratch, or do you already have some panels?

In both cases, the goal is the same: to determine whether the storage capacity is truly suitable for your needs before choosing a battery.

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I'm planning a new solar installation

From the very beginning, we can consider your solar power generation, your energy needs, and whether it makes sense to integrate storage right away or plan to add it later.

Learn about solar + battery →
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I already have solar panels

Would you like to make better use of the electricity you generate? We'll assess your existing system, its compatibility, and the types of storage options available.

Check if I can add a battery →
Understand It in 30 Seconds

What is a solar battery actually used for?

It doesn't generate electricity: it simply shifts some of the energy already generated by your panels to a later time.

1

Your panels generate

The house uses some of the available solar electricity directly as it is generated.

2

The surplus can be stored

Depending on the system used, some of the available energy can be directed to the battery instead of being used immediately.

3

You'll use it later

The battery can release this energy when solar generation is insufficient and the home is using electricity.

Storage battery connected to a photovoltaic systemPhotovoltaic Storage
Storage

Use what you're producing now later on

A battery truly comes into its own when it addresses an actual imbalance between solar production and consumption. Its capacity is determined based on your actual usage, not on a random number.

An AR SERVICES consultant explaining how to size an energy storage project
Proper Sizing

The best battery isn't necessarily the biggest one.

Your storage capacity should be consistent with what your panels produce, how much you consume, and when you consume it. Oversized equipment can be unnecessarily expensive, while insufficient storage may not meet your needs.

Your Actual ProductionInstalled capacity, orientation, and available production throughout the year.
Your Consumption HabitsDaytime presence, evening energy use, and household electrical appliances.
Your goalTo increase self-consumption, balance out certain uses, or lay the groundwork for a larger energy project.
Size my storage →
AR SERVICES is here to guide you

Before choosing a battery, we look at the entire system.

A battery must be compatible with the photovoltaic system, the inverter, or the chosen system architecture, as well as with how you plan to use your energy.

Get advice from AR SERVICES →
Photovoltaic SystemNew installation or panels already in service.
Technical CompatibilityElectrical architecture, inverter, and potential storage solution.
Useful CapacityA capacity designed with your production and usage in mind—not based on a random number.
Future DevelopmentsChanges in usage, heat pumps, electric vehicles, or other energy consumption factors to anticipate, if relevant.
Home Energy Project with Solar PanelsScalable Project
Big Picture

Anticipating the Uses of Tomorrow

Air conditioning, heat pumps, or electric vehicles can change your energy consumption profile. Planning for them now helps ensure you don’t design a system today that will quickly become obsolete.

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Just because you have a battery doesn't automatically mean your home will have power during an outage.

If this feature is important to you, please mention it during the planning phase. Whether certain equipment remains powered during an outage depends on the installed solution, its architecture, and the availability of an appropriate backup feature.

From A to Z

A storage project that's easy to understand.

You always know why a solution is proposed and what the next step is.

01Your GoalYou tell us what you want to improve regarding your energy use.
02Your DataWe review your existing system, available generation, and consumption.
03CompatibilityWe verify that the solutions are technically compatible with your system.
04SizingWe offer capacity and architecture tailored to your needs.
05Installation & Follow-upThe solution is implemented and then clearly explained.
Thinking About the Project as a Whole

Storage works even better when it's designed with the home's other functions in mind.

Solar power, heat pumps, and electricity consumption can be considered together to avoid making decisions in isolation.

Frequently Asked Questions

Helpful answers to know before you begin your study.

Can you add a battery to solar panels that are already installed?

This may be possible, but it is necessary to verify the architecture of the existing installation, the equipment currently in place, and compatibility with the proposed storage solution.

What battery capacity should I choose?

Capacity depends on your solar power generation, your energy consumption, and your goal. It should be determined based on actual data rather than a standard figure.

Does a battery work if the power is out?

Not automatically. To maintain power during an outage, the solution must include a compatible backup feature and be designed for the applications you want to keep running.

Is it better to install the battery right from the start?

Not in every case. Depending on your profile, it may make sense to install it immediately, prepare for installation at a later date, or start without storage. The study allows you to compare these options.

Does AR SERVICES operate in the Caen area?

Yes. AR SERVICES is based in Louvigny, near Caen. Calvados is a priority area, though projects are also considered more broadly throughout Normandy, depending on their nature.

Your Storage Project

Do you already have solar panels? Now might be a good time to look into energy storage.

AR SERVICES checks whether your system is compatible and helps you determine if a battery is actually suitable for your needs.