Independent renewable energy producer Groupe Volta, in partnership with greenhouse manufacturer Richel Group, has completed the commissioning of a 5-megawatt agrivoltaic project in the municipality of Loriol-sur-Drôme. Named “Les Vergers de Fouillas”, the site spans 5 hectares and includes two photovoltaic greenhouses located 200 metres apart. The facility will produce approximately 7.3 gigawatt-hours of electricity annually—equivalent to the consumption of 3,000 residents—under a 30-year contractual term.
A hybrid model of energy and agricultural value
The project is based on an economic model in which farmers are granted free use of the greenhouses in exchange for photovoltaic exploitation of the roof area. The structures are specifically designed for kiwi cultivation, a fruit that requires warm and humid conditions. Bifacial solar modules installed on the roof allow optimal light transmission while generating electricity. Integrated ventilation systems, including roll-up walls and tilting frames, help regulate humidity and temperature.
Local synergy and industrial expertise
Infrastructure adjustments were carried out in coordination with local producers. The project drew interest from the Lorifruit cooperative, particularly through the involvement of one of its members who cultivates yellow and red kiwis under greenhouse conditions. The infrastructure also reduces irrigation needs by shielding crops from the mistral and from weather events such as hail.
Several local companies contributed to the project’s electrical cabling, grid connection and logistics, reinforcing its integration into the regional economy.
Low-carbon intensity technologies
Groupe Volta selected low-carbon solar panels (400 gCO₂/Wp) and European-manufactured inverters to reduce the project’s environmental footprint. The electricity generated has a carbon intensity of 30 gCO₂/kWh, nearly 30% below the national average for the photovoltaic sector.
Richel Group incorporated this initiative into a broader industrial strategy, which includes electrification of its logistical equipment and meeting most of its energy needs through two photovoltaic plants installed on its production site.
An investment coordinated by Siparex
The project forms part of the investment strategy of TiLT Capital, a fund focused on the energy transition, and Mezzanine, both managed by investment firm Siparex. These two entities respectively hold stakes in Groupe Volta and Richel Group. Siparex executives welcomed the partnership as a case of industrial and regional complementarity.
