FRENCH MULTI-FACADE MARITIME LOGISTICS CAPACITY
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Offshore
TETIS & ISMER: A Key Player in Offshore Wind Energy
in Brittany-Atlantic and Channel Sea
TETIS & ISMER, based in Lorient, Brittany (France), is a specialist in maritime and underwater works, actively contributing to the expansion of offshore wind energy (and hydro turbine) in France.
With an experienced team of divers and marine experts, TETIS & ISMER is involved in the installation, maintenance, and inspection of offshore wind farms, ensuring the highest standards of safety and environmental sustainability.
Main Location
Main Location at the Heart of a Dedicated Offshore Wind Hub
Le Havre, Saint-Nazaire, Lorient, Saint-Malo locations provide TETIS & ISMER with a prime position within a growing network of infrastructures dedicated to offshore wind energy.
The city of Lorient hosts the Port of Services for Marine Renewable Energies (MRE), a key logistical hub that supports the maintenance and development of offshore wind farms along the Brittany-Atlantic coast.
The city of Le Havre…
TETIS & ISMER are also present in the following ports: Calais, Saint-Nazaire, Brest and Saint-Malo
Marine Renewable Energies
A Commitment to Marine Renewable Energies
TETIS & ISMER work closely with leading engineering partners in structural, oceanographic, and environmental sciences to provide innovative and sustainable solutions for offshore wind infrastructure. Through its expertise and strategic location, TETIS & ISMER plays a vital role in supporting the long-term growth of marine renewable energy in France.
Soaring high in the winds of innovation, TETIS & ISMER sets its sights on carving a niche as an essential player in Lorient’s maintenance services for wind farms. Nestled in an ideal location, the TETIS & ISMER site boasts a robust platform for equipment storage, a conveniently located loading dock, and ample room for temporary offices—making it the hub for maritime might.
Our company is no stranger to collaboration, effectively navigating both IMCA regulations and international waters.
With logistics facilities for storage and temporary offices, intervention vessels, and vigilant surveillance, TETIS & ISMER is primed to lead in offshore wind maintenance. Your quest for reliability in renewable energy starts here!
Le Havre, St Malo, Lorient, St Nazaire
Lorient's port infrastructure offers:
A sheltered and accessible bay with unrestricted open-sea access and no air draft restrictions, ensuring year-round operations.
- A dedicated maintenance base (1.5 ha) with 100 linear meters of quay and crew facilities for offshore wind service vessels.
- A specialized ship repair area, including a ship lift of up to 650 tons and an 80-meter quay.
Together with the EMR Terminal in Brest, Lorient forms a complementary port ecosystem supporting offshore wind projects. This strategic positioning places TETIS & ISMER at the heart of operations for the seven offshore wind farms currently under development in France, representing 6 GW of installed capacity and preparing for future floating offshore wind projects.
TETIS & ISMER
Marine Energy: Navigating New Horizons with TETIS & ISMER
TETIS & ISMER is your trusted ally in the realm of marine energy. With expertise that flows through installation, monitoring, maintenance, and recovery, we tackle all submerged marine devices.
- Tidal turbines that harness the moon’s rhythm
- Wave power plants riding the ocean’s pulse
- Offshore wind turbines, whether anchored or afloat
Collaborating with IMCA, TETIS & ISMER excels in international waters. Our operational hub features a containerized caisson in Le Havre. We’re also acquiring a second, even more cutting-edge caisson.
Our logistics facility boasts ample storage and temporary office spaces. Equipped with intervention vessels, we ensure seamless surveillance and top-notch maintenance for marine energy systems.
Survey
Survey & Monitoring
We provide comprehensive monitoring services, including mooring inspections, corrosion assessments, and emergency interventions on fishing gear, buoys, and mooring lines.
Our expertise extends to the maintenance of structures and supports for offshore substations, as well as the inspection of subsea cables, junction boxes, and landfall connections.
Additionally, we deploy lightweight observation ROVs equipped with acoustic cameras and precision positioning systems for detailed underwater assessments.
Bio acoustic monitoring & survey
About us
TETIS & ISMER Company
In the harbour of Lorient, TETIS & ISMER dives deep into underwater marvels. Specializing in maritime and river infrastructures, this company has been making waves for 30 years.
Located in the quaint submarine base on the Scorff’s southern bank, TETIS & ISMER proudly showcases its vibrant Lorient and Breton spirit. This connection roots it firmly within the thriving economic tapestry of the great west.
With a commitment to quality and service, TETIS & ISMER embodies a culture of advice and support. Their craftsmanship shines, paired with engineering brilliance and boundless inventiveness.
For 15 years, TETIS & ISMER has proudly held hyperbaric certification and is a valued SNETI member. Their experienced divers plunge to depths of 50 meters with confidence.
Currently at the helm is Mr. Jean Broch, steering this underwater enterprise to new horizons.
TETIS & ISMER has expanded its expertise in the field of Marine Renewable Energies (MRE). Our services encompass the installation of offshore and floating wind turbines, cable burial, and the deployment of tidal turbines. Our dedicated engineering team is prepared to assess your requirements and apply our specialized knowledge to fulfill your project needs.
Customers
Customers
– EDF – PRYSMIAN – SISGEN – FRANCE TELECOM –
– AXIONE – RTE – NOVA INNOVATION – BUREAU VERITAS –
Scope of Services
Scope of Services
We have contributed to the establishment of the SEMREV experimental site, specifically in cable and hub installations. Our range of services includes:
– Site Assessments: Conducting bathymetric surveys, sonar mapping, and ROV inspections.
– Subsea Inspections and Evaluations: Performing underwater assessments and expert analyses.
– Geotechnical Sampling and Analysis: Collecting and analyzing soil and sediment samples.
Our installation capabilities cover:
– Fixed and floating offshore wind turbines
– Tidal turbines for riverine and marine environments
– Wave energy converters
– Cable burial operations
– Subsea structures (e.g., hubs)
– Rock removal and drilling
– Mooring chain and anchor placement
– Foundation construction
– Access to ETPO‘s engineering bureau
Equipment
Equipment and Resource
To execute these projects, we maintain an extensive inventory of equipment, both independently and in collaboration with ETPO.
Our assets include:
– Work barges ranging from 5 to 1,000 tonnes
– Cranes with capacities up to 250 tonnes
– Tools and machinery capable of operating up to 20 nautical miles offshore
Certifications
Certifications
- Member of SNETI (National Union of Underwater Contractors)
- BV supplyerHyperbaric certification (French regulations)
- BV underwater survey
Scuba
TETIS & ISMER Divers
Seeking a seasoned team of scuba specialists? Look no further!
TETIS & ISMER boasts skilled divers ready to dive down to 50 meters. Our divers operate primarily within the legal hyperbaric framework of Mention A; however, we also expertly handle interventions per Mention B, fully adhering to regulations.
- Submarines
- Ports
- River
Curious about the captivating world of scuba diving?
TETIS & ISMER stands as the Brittany authority on maritime, port, and submarine operations.
As a proud subsidiary of the ETPO Group, we dive deep into excellence.
Contact
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For further information or to discuss your project requirements,
please contact us by phone +33 6 51 97 22 89. or use the contact form below
We will get back to you shortly, thank you
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Contact Us
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ISMER Petite Base des Sous-marins Zone Industrialo-Portuaire du Scorff, 56600 Lanester
Address to enter into GPS: Avenue Ingénieur Général Stosskopf, Lanester
Hours (French time): Monday to Saturday 07h00-20h00 et 24H/24H in case of emergency.
Phone : 06 51 97 22 89 (office)
or 06 11 05 05 51 (in case of emergency)