--- title: "Les Îlots Blandin — 74 MWp Floating Solar in France | PerPetum Energy" description: "Europe's largest floating solar plant: 74 MWp on former gravel pits in Perthes, France. 135,000 modules across 127 hectares, built by PerPetum." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "@id": "https://www.perpetumenergy.com/#organization", "name": "PerPetum Energy", "legalName": "PerPetum Energy", "url": "https://www.perpetumenergy.com", "logo": { "@type": "ImageObject", "url": "https://www.perpetumenergy.com/logo.png", "width": 600, "height": 120 }, "image": "https://www.perpetumenergy.com/logo.png", "description": "Energy-as-a-Service company delivering on-site energy hubs combining Flex Storage (BESS), Flex PPA (solar), and Power2Heat — without upfront investment. 1 GW+ constructed across Belgium, Netherlands, France and Germany.", "foundingDate": "2006", "numberOfEmployees": { "@type": "QuantitativeValue", "value": 60 }, "address": { "@type": 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Uncategorised Other uncategorised cookies are those that are being analysed and have not been classified into a category as yet. - Cookie \_\_Secure-YEC - Duration past - Description YouTube sets this cookie to stores the user's video player preferences using embedded YouTube video Reject All Save My Preferences Accept All Powered by[](https://www.cookieyes.com/product/cookie-consent/?ref=cypbcyb&utm_source=cookie-banner&utm_medium=sl-branding) [Skip to main content](#main-content) [ ![PerPetum Energy](/images/perpetum-logo-white.svg) ](/en) [Solutions](/en/solutions) [How we work](/en/how-we-work) [Projects](/en/projects) [Events](/en/events) [Resources](/en/resources) [About](/en/about) [Contact](/en/contact) EN [Day-ahead BE € 157,51 ](/en/resources/energy-market-monitor) [Book intake call](/en/book-call) ![](https://ymsoqmpukqirvcxrsicw.supabase.co/storage/v1/object/public/cms-media/projects/les-ilots-blandin.jpg) [Back to projects](/en/projects) Commercial & other Active Front-of-meter 🇫🇷 France ## Les Îlots Blandin 🇫🇷 Perthes, Haute-Marne, France # Europe’s largest floating solar installation Share on LinkedIn 74 MWp Capacity PV Floating Solution ![Les Îlots Blandin - PV Floating](https://ymsoqmpukqirvcxrsicw.supabase.co/storage/v1/object/public/cms-media/projects/les-ilots-blandin.jpg) Services Provided: EPC O&M ## Europe's largest floating solar, circular land use at scale A 74 MWp floating and ground-mounted PV installation built across six former gravel lakes, transforming industrial land into large-scale renewable infrastructure. ### Project Overview After six years of development, Les Îlots Blandin proves that legacy industrial sites can be given a second life as productive clean energy assets. The former gravel pits in Perthes now host 135,000 solar modules floating across 127 hectares of water, generating enough electricity to power 18,000 homes while actively improving the aquatic ecosystem by reducing evaporation and limiting algae growth. ### The Challenge Transforming former gravel extraction basins into Europe's largest floating solar plant, navigating six years of complex environmental permitting, water body regulations, and innovative anchoring engineering across 127 hectares of open water. ### Our Solution PerPetum delivered a 74 MWp floating photovoltaic installation with 135,000 modules, complemented by a 2 MW ground-mounted array. Specialised anchoring and mooring systems were engineered for deep water bodies, while the floating design actively reduces water evaporation and algae growth, creating environmental co-benefits beyond clean energy. - 74 MWp floating photovoltaic installation - 135,000 solar modules across 127 hectares - Complementary 2 MW ground-mounted array - Specialised deep-water anchoring and mooring systems - Reduced water evaporation and algae growth - Circular land use: extraction basin to energy asset Constructed and operated by PerPetum, transforming what was once an extraction basin into a European landmark for renewable energy. ### Project highlights 74 MWp Total installed capacity 85 GWh Annual clean energy production 135,000 Solar modules installed 127 ha Water surface covered 18,000 Homes powered 18,000 t CO₂ avoided per year ### Results & Impact Les Îlots Blandin generates approximately 85,000 MWh of clean electricity per year, enough to power 18,000 French homes, while avoiding 18,000 tonnes of CO₂ annually. The floating design delivers environmental co-benefits: reduced water evaporation protects local water tables, while limited sunlight penetration controls algae proliferation. The project demonstrates that circular land use, repurposing extraction sites for clean energy, can deliver utility-scale impact without consuming a single hectare of productive land. [Energy-as-a-Service](/en/solutions/solar-energy) [Battery energy storage](/en/solutions/battery-storage) [How we work](/en/how-we-work) ## Have unused water bodies or brownfield sites? Discover how floating solar can turn legacy sites into clean energy assets, without land consumption. 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