The Cher department gets its first PV power plant

Advanced Energies, a VINCI Energies business unit, led and coordinated the Cher department's first photovoltaic power plant project, located in Marmagne (central France).

The new PV power plant is part of the municipality's Eco-Park project, which over time aims to bring together on a single site an anaerobic digestion plant, a composting unit, a storage facility for wood packaged in the form of pellets and a wind farm.

Commissioned in the spring of 2016 following 5 months of works, the plant produces 2.7MWp of power, the equivalent of the electricity consumption of 1,400 households.

“We had already supported the project initiator Langa Solar in other types of schemes, and this cooperation continued when the plant project came about. Because energy feed-in tariffs are fairly low, this type of energy is in competition with other types, cheaper to produce. So we identified technical solutions that would help reduce the financial cost and optimise whatever could be optimised so that a project of this size could become possible, and at the same time profitable,” explains Willy Blaiteau, Advanced Energies business unit manager.

Advanced Energies carried out the concept design, followed by the engineering and 3D modelling studies, right through to the connection of the PV panels to the inverters and high voltage grid. Several local businesses took part in the works, including some VINCI Energies business units (Mercier Berry and CEE Berry).

“This is the first time that our company has executed a solar plant of this size in its entirety,” adds Willy Blaiteau. “A second phase is planned, including the installation of another plant. We expect to hear whether it has been approved at the beginning of next year.”


  • 7MWp output
  • 2km of highways created
  • 11,232 PV panels
  • 5 months of works
  • a site with a 1km perimeter spread out over 4.7 hectares