List of the 200 largest PV-Installers France [2025]

Description

List of 5 large PV-Installers in France

Renewable energies are becoming increasingly relevant for both the use in industry and private households. Solar energy in particular, is at the forefront of sustainable power generation technologies. Electricity from PV systems still accounts for 15% of the energy mix in France, but like everywhere else in Europe, this trend is on the rise. Accordingly, there is a need not only for technology providers who develop and improve solar panels, but also for experts who take care of the installation of new systems, both for individuals, communities and the industry. The following article presents 5 of the largest PV-Installers in France.

1. Soltis France (Evere)

Soltis is one of the biggest and best-known PV installers in France. According to the company, the photovoltaic expert has installed over 300,000 solar panels for both residential customers and companies. Although the company, which is a subsidiary of the YesyConseil group, was founded in 2022, Soltis is already RGE-certified. The solar installer aims to offer cost-effective solutions, allowing their customers to become more energy independent.

2. O2 TOIT (Aix-en-Provence)

O2 TOIT is an energy expert offering an array of different services, one of which is the installation of solar panels. Since its foundation in 2012, O2 TOIT has offered its services mainly for private households – recent rooftop installations were finalized in Loire-Atlantique, Béziers, Gironde, and Narbonne. In addition to their expertise in installations, the company also provides maintenance services for its customers.

3. Groupe Valeco (Montpellier)

Groupe Valeco was founded in 1995 and has since evolved as one of the largest renewable energy players in France. As of today, the company has over 900MW of capacity in operation, generated by more than 55 solar plants and over 230 wind parks. This already indicates that, although the energy company has other areas of expertise beyond solar energy, it is particularly advanced in this field. For example, in addition to large-scale solar parks, Valeco also offers the installation of agricultural photovoltaics.

4. France Solar (Brumath)

While France Solar is also a large and well-known French PV-installer, the company also offers small-scale solar installations and is thus certified by RGE. The company was founded in 2009 and offers its installation services in Strasbourg, Lille, Reims, Rouen, Orléans, Rennes, Beaune and Chalon-sur-Saône. In addition to installations for individual households, France Solar also offers installations for farmers, communities and industry. To this date the company has installed over 1,000,000 m² of photovoltaic panels.

5. Orion Energies (Paris)

Orion Energies is a PV installer from Paris that offers various types of PV installations throughout France. Founded in 2009, the company has already installed 500MW of solar systems, in the form of ground-mounted projects, park roofs, photovoltaic roofs, agriphotovoltaics and more, which equals 350 solar plants. More than 500MW are under development in France and internationally. 

Included columns in our French PV-Installer database

• Company Details (Company Name, Legal Form, URL)
• Contact Details (Country, City, Postcode, Address, Email, Phone, Management)
• Additional Information (Top Installer, Certified Installer, Regional Focus)
• Status (Entry added, Last reviewed, last update)

In some cases, data can be missing due to unavailability (e.g. no management names were available). In these cases, we indicate the fields in the list as “n.a.”

Picture Sources: Bill Mead & Ricardo Gomez Angel via Unsplash