Peyrolles-en-Provence Floating Solar PV

Project title: Peyrolles-en-Provence Floating Solar PV 

Project location: France

Client: Omexom and Boralex 

Project Summary:

INNOSEA, part of OWC, completed independent engineering work to support the design phase of the Peyrolles-en-Provence floating solar PV (FPV) plant – repurposing a decommissioned gravel pit of the same name. 

With a projected capacity of 14.7 MWc – enough to power around 6400 homes with green energy, the FPV plant was installed at the site of a disused water gravel pit, converting a large available water body for the production of renewable energy to power the local area. 

The plant consists of more than 43000 solar panels installed on a floating structure covering 12.6 hectors and moored with dead-weight anchors.  

Our scope of work

  • Aerodynamic and environmental loading calculation management
  • Detailed mooring and anchoring design 
  • Mooring installation operation follow-up and validation 

Start date: January 2022 


The appropriate site coupled with competent technical design, is key to mitigating future risk to infrastructure – thereby reducing unforeseen costs in construction, operations & maintenance, and common failures in mooring, float and electrical components. 

  • Design loads are typically complex to evaluate, as they depend on water conditions and behaviour of the asset in water 
  • Quarries have lower environmental restrictions and lower environmental loads but a high flood risk 


  • The design and construction of the floating substructure,  
  • Design and testing of all mounting components: mooring cables and bearings 
  • Dynamic design load case report 


  • Innosea is a world-leading specialist in R&D, engineering and advisory for FPV development 
  • Contributed to over 60 FPV projects in France, USA, Portugal, Maldives, Indonesia, Laos, Brazil and elsewhere 
  • Expert knowledge of regional or national standards for inshore/nearshore floating structures 

“We were really pleased to bring our expertise and track-record in engineering and consulting at the design stage of FPV projects, to the Peyrolles-en-Provence project. This is a project executed in complete compliance with the principle of ‘avoid-reduce-compensate‘ – integrating environmental challenges into the project design for optimised results. Not only that, this project repurposes a large, decommissioned space, for the development of beneficial green energy generation.”

Valentin Arramounet, Specialist Engineer, Innosea
Photo credit: Omexom
Engineers inspecting floating solar panels
Photo credit: Omexom
Cable Consultancy and Engineering

Cable Consultancy and Engineering

OWC provides the services our clients require to fulfil their mission of designing cable routes, installing and protecting cables, and maintaining and repairing cables for their offshore wind projects.
Research and Development

Research and Development

Innosea – the French branch of OWC – is a leading research & development (R&D) partner across the marine renewable energy landscape.

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