Bidirectional EV Charger Installation (V2H/V2X) on the French Riviera

Charge your electric car with solar power — then use its battery to power your home

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REGIS ELECTRIC installs bidirectional V2H/V2X EV charging systems in Valbonne, Cannes, Mougins, Antibes, Nice and throughout the Alpes-Maritimes on the French Riviera.

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With a conventional EV charger, electricity flows in one direction only: from the home to the vehicle. With a bidirectional charger and a compatible electric vehicle, energy can also flow back from the car to the property. The vehicle battery then becomes a large mobile energy reserve that can help power the home.

As a specialist in solar photovoltaic systems, battery storage, backup power and EV charging infrastructure, REGIS ELECTRIC installs and integrates the SIGENERGY EVDC — the fast DC charging module designed for the SigenStor energy ecosystem.

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In short: V2H allows a compatible electric vehicle to supply energy to the home. V2X is the broader term covering the different ways energy can be exchanged between the vehicle, the home and, where regulations and contracts allow, the electricity grid.

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What is a bidirectional EV charger?

 

A conventional EV charger draws electricity from the grid, solar panels or a home battery to charge the vehicle.

A bidirectional EV charger can also operate in reverse. If the vehicle supports bidirectional discharging, energy stored in its battery can be sent back into the home's electrical system.

An electric car is therefore no longer simply a means of transport. When parked and connected, it can become a high-capacity mobile battery for the property.

What is the difference between V2H, V2G and V2X?

 

V2H — Vehicle-to-Home

 

V2H, or Vehicle-to-Home, uses energy stored in a compatible electric vehicle to help power the home.

Depending on the system design, this energy can be used to:

• cover part of the home's electricity demand;

• reduce peak power drawn from the grid;

• complement a residential battery;

• help supply backed-up circuits during a power cut, provided that the correct backup and grid-islanding equipment is installed.

 

V2G — Vehicle-to-Grid

 

V2G, or Vehicle-to-Grid, refers to energy being exchanged between the vehicle and the public electricity grid. For example, a vehicle may be able to return stored energy when the grid needs additional support.

Actual V2G availability depends on the vehicle, its software, the energy contract and the applicable regulatory framework.

 

V2X — Vehicle-to-Everything

 

V2X is the general term covering the various bidirectional uses of an electric vehicle, including V2H for the home, V2G for the grid and other current or future energy applications.

 

SIGENERGY EVDC: bidirectional charging integrated with SigenStor

 

The Sigen EV DC Charging Module, commonly known as the SIGENERGY EVDC, is a fast DC charger integrated into the SigenStor home energy ecosystem.

It is not simply a standalone wallbox. The system can coordinate:

• solar photovoltaic production;

• SigenStor residential battery storage;

• the electricity grid;

• electric vehicle charging;

• energy returned by a compatible vehicle.

 

Depending on the selected module and system design, SIGENERGY EVDC solutions are available with charging capacities of 12.5 kW or 25 kW. The power actually available will depend on the Sigen Energy Controller, the vehicle, the property's electrical supply and the energy sources available at that moment.

The system can provide:

• fast DC charging at home;

• smart charging with surplus solar production;

• scheduled charging periods;

• coordinated use of solar power, the grid and battery storage;

• preparation for V2H/V2X operation;

• energy monitoring and control through the mySigen app.

 

View the official SIGENERGY EVDC product page.

 

Why combine a V2H charger with solar panels?

 

A photovoltaic system produces most of its electricity during the day. When the home does not immediately use all this energy, the surplus can be sent to a residential battery or used to charge the electric vehicle.

 

The vehicle can therefore be charged with a greater share of locally generated solar energy. If it supports V2H, its battery may later return energy to the home when the solar panels are no longer producing.

This creates a smarter energy cycle:

1. The solar panels generate electricity.

2. The home uses the energy it needs.

3. Surplus production charges the SigenStor battery or the electric vehicle.

4. The stored energy can be used later.

5. With a compatible vehicle, V2H adds the car battery to the home's available energy resources.

 

Every project must be sized around the property's actual consumption, the times when the vehicle is normally at home, daily driving requirements and the minimum battery level the owner wants to preserve for travel.

 

Do you need a home battery with the SIGENERGY EVDC?

 

The EVDC module must be integrated into a SIGENERGY system that includes the Sigen Energy Controller.

A residential battery is not necessarily required solely to operate the charger. However, it provides valuable continuity whenever the vehicle is away from home or disconnected.

Combining the EVDC with a SigenStor battery makes it possible to:

• maintain an energy reserve that remains available at the property;

• store surplus solar production when the vehicle is not at home;

• manage energy more effectively between the home and electric mobility;

• strengthen the property's energy-independence and backup strategy.

 

REGIS ELECTRIC assesses each project individually, without unnecessarily oversizing the residential battery.

 

Can V2H power the home during a power cut?

 

Yes, provided that the entire system has been designed for backup operation. The vehicle must support bidirectional discharging, and the installation must include the appropriate backup, grid-islanding and energy-management equipment.

 

A technical assessment is required to determine:

• which circuits need to remain powered;

• the maximum power required;

• the energy available from the vehicle and any residential battery;

• whether the vehicle is likely to be present when backup power is needed;

• the minimum vehicle battery level to preserve for travel.

 

V2H does not automatically replace a correctly designed backup system. It adds another potential energy source to that system.

 

Are all electric vehicles compatible with V2H/V2X?

 

No. A CCS2 charging port alone does not guarantee that a vehicle can return energy to the home.

Compatibility depends on several factors, including:

• the vehicle manufacturer and model;

• the model year and exact version;

• the vehicle's onboard software;

• the features enabled by the manufacturer;

• the communication protocol;

• the country and applicable regulatory framework.

 

Before confirming V2H operation, REGIS ELECTRIC checks the exact vehicle and the functions currently available. Sigenergy publishes a database of vehicles tested for V2X operation, but notes that performance and availability may vary by region, software version and model year.

 

Why choose REGIS ELECTRIC for a V2H/V2X installation?

 

A bidirectional EV charger brings together several technical areas: the property's electrical installation, EV charging, solar generation, energy storage and backup power.

REGIS ELECTRIC combines these areas of expertise as both an electrical contractor and a specialist energy-system installer:

• IRVE Recharge+ qualification for electric vehicle charging infrastructure;

• RGE QualiPV qualification for photovoltaic installations;

• practical experience with SigenStor batteries and SIGENERGY systems;

• expertise in electrical panels and protection devices;

• integration of backup power systems;

• a personalised technical study based on the property and vehicle;

• careful, professional installation;

• support after commissioning.

 

We do more than connect a charger. We verify that the complete electrical and energy system is safe, coherent, correctly sized for the property's real needs and able to evolve over time.

 

Bidirectional EV charger installer in Cannes, Valbonne and the Alpes-Maritimes

 

Based in Valbonne, REGIS ELECTRIC installs bidirectional EV charging systems throughout the Alpes-Maritimes and the French Riviera, including:

Valbonne, Sophia Antipolis, Cannes, Le Cannet, Mougins, Antibes, Biot, Mouans-Sartoux, Vallauris, Grasse, Roquefort-les-Pins, Le Rouret, Villeneuve-Loubet, Cagnes-sur-Mer and Nice.

We also work in neighbouring towns when a project requires combined expertise in solar power, battery storage, backup systems and V2H/V2X technology.

You may also be interested in:

• EV charger installation;

• solar photovoltaic installation;

• home energy independence, battery storage and backup power.

 

Frequently asked questions about V2H/V2X bidirectional charging

 

What is a bidirectional EV charger?

 

A bidirectional charger can charge an electric vehicle and, with a compatible model, recover energy stored in the vehicle battery to power the home or another authorised application.

 

What is the difference between V2H and V2L?

 

V2L supplies individual appliances directly from an outlet on the vehicle. V2H integrates the vehicle battery into the home's electrical installation through a bidirectional charger and suitable energy-management and safety equipment.

 

Does the SIGENERGY EVDC work with every electric vehicle?

 

No. Charging may be widely compatible, but V2H/V2X discharging requires the vehicle to authorise bidirectional energy flow. The exact model, model year and software version must be checked.

 

Can the vehicle battery power the entire home?

 

It depends on the vehicle, charger, inverter, electrical supply and the home's power demand. A technical study determines whether it is appropriate to back up the whole property or only selected priority circuits.

 

How much power can a SIGENERGY EVDC provide?

 

SIGENERGY offers 12.5 kW and 25 kW EVDC configurations. The power actually used may be lower depending on the vehicle, electrical connection, Sigen Energy Controller and system settings.

 

Are solar panels required for V2H?

 

No. However, combining V2H with a photovoltaic system allows the vehicle to be charged with locally generated solar energy and can significantly improve the home's self-consumption.

 

How much does a V2H/V2X installation cost?

 

The price depends on the existing electrical installation, charger capacity, whether a SigenStor system is already installed, the number of batteries, backup requirements, cable routes and any work required at the electrical panel. A site visit is necessary to provide an accurate and reliable quotation.

 

Where can I have a bidirectional EV charger installed on the French Riviera?

REGIS ELECTRIC installs SIGENERGY EVDC solutions in Valbonne, Cannes, Mougins, Antibes, Grasse, Nice

and surrounding towns throughout the Alpes-Maritimes. Every project begins with an assessment of the property, the vehicle and the existing electrical installation.

 

Request an assessment for your V2H/V2X bidirectional charger

 

Would you like to charge your electric vehicle with solar energy and prepare your home for bidirectional charging?

REGIS ELECTRIC will assess your vehicle compatibility, electricity consumption, existing installation and energy-independence goals to design a safe, coherent and future-ready solution.

REGIS ELECTRIC — Valbonne, Alpes-Maritimes
Phone: +33 7 82 18 92 43
Email: office@regiselectric.fr
Contact form: Request a personalised assessment