High-Voltage Grid Integration for 230 MWp Solar Capacity in France

The deployment of large-scale solar energy in France is increasingly defined by the ability to integrate production into complex environments, such as active agricultural lands and aquatic surfaces. Neoen’s recent launch of 230 MWp in new solar capacity—comprising the Le Couret, Isle-sur-Marne, and Matignicourt facilities—demonstrates a competitive shift toward multi-use infrastructure. Unlike standard ground-mounted arrays, these projects utilize agrisolar and floating technology to optimize land use and grid stability, positioning the developer as a specialized independent leader in the French energy market.

Optimizing Land Use Through Large-Scale Agrisolar and Floating Technology
The 147 MWp Le Couret agrisolar farm in Haute-Vienne serves as a benchmark for high-capacity renewable integration. Spanning 170 hectares, it is designed to maintain active livestock farming, specifically sheep grazing, while generating power. This dual-purpose approach addresses a key competitive challenge in the industry: securing large land areas without displacing local agricultural production.

In the Marne department, the Matignicourt and Isle-sur-Marne projects further differentiate the infrastructure by utilizing former industrial sites. The 35 MWp Matignicourt plant introduces floating solar technology across four lakes in a disused quarry. This method prevents land-use conflicts and offers environmental benefits, such as reducing water evaporation and utilizing artificial nurseries (biohuts) to support aquatic biodiversity.

Enhancing Grid Stability with High-Voltage Infrastructure
A critical technical differentiator for these new assets is their direct connection to the French electricity transmission system (RTE). The construction includes two dedicated 225 KV substations, which allow for a more robust and reliable injection of power into the national grid compared to smaller, decentralized projects. This high-voltage integration is essential for supporting large-scale industrial energy needs, such as the 25-year agreement to power the Paris-Marseille high-speed rail line.

Operational Longevity and Strategic Implementation
The development of these assets, scheduled to be operational by 2028, relies on a long-term ownership model. By acting as both the owner and operator, Neoen ensures consistent performance and maintenance standards over a 20-year period. This integrated approach to construction and maintenance, executed in partnership with specialized firms like Equans Solar & Storage, provides a stable framework for scaling renewable capacity to meet national decarbonization targets.

www.neoen.com