As a committed regional player, we have a comprehensive expertise across the entire value chain of energy projects. Our proven expertise in rooftop photovoltaics enables us to offer solutions tailored to each specific challenge.


Rooftop photovoltaic is our signature solution. It’s the best representation of our expertise and perfectly illustrates our beliefs:
Roofing multi-experts
We offer several economic and technical models for buildings of 500 m² or more.
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Whether new or in need of renovation, you can install photovoltaic panels on your roof to enhance its value: a quality, sustainable, and turnkey installation to make use of an (already) available space.
To enhance and modernize your parking areas, opt for photovoltaic carports and actively participate in the energy transition.
Choose an innovative, high-performing, and proven agricultural tool. Through solid partnerships, Volta offers flexible layouts for optimal cultivation conditions: temperature and humidity control, extended production cycles, better water management with rainwater collection and storage, operational comfort, etc.
If your activity generates a significant demand for electricity, consider setting up a self-consumption photovoltaic plant: Volta takes care of the entire setup and sells you the electricity, allowing you to directly benefit from decarbonized, competitive, local energy for a duration of 10 to 20 years.
In early 2024, Volta acquired a specialist in roof waterproofing. Through this acquisition, Volta added a new roofing expertise hub with the goal of mastering all the skills necessary for a reasoned and long-term development of solar roofs.
In parallel with its historical activities, Volta also supports agricultural operators through innovative projects that allow them to maintain their activity and adapt to climate changes.
WOJO, 16 rue Washington, 75008 Paris
15 ZA Le Moulin, 04220 Corbières-en-Provence
10 rue Ferdinand de Lesseps, 33693 Mérignac
MDC, 5 rue Pierre Joseph Colin, 35000 Rennes