TotalEnergies partners with the Norwegian company Semar to develop an innovative mooring solution

Stavanger, February 14, 2022 – Committed to develop the offshore wind technologies for renewable energy, TotalEnergies continues to promote research and development partnerships in Norway. The Company has selected the Norwegian Semar Honeymooring™ solution, aiming to reduce floating wind costs and seabed footprint. The innovative mooring solution is expected to reduce the development costs of TotalEnergies future Offshore Wind projects Norway and worldwide.

Floating offshore wind turbines have removed the depth constraints but raised the challenge of cost-effective, reliable mooring¹. Mooring design is based on the traditional technologies from mooring of oil & gas floating structures. The innovation of the Honeymooring™ technology is to connect floating wind turbines in a “honeycomb” network and enables new ways of applying well-proven mooring technology in new and more effective anchor-sharing configuration.

TotalEnergies believes Semar Honeymooring™ solution can meet this challenge by:

• Reducing the carbon footprint and impact on the seabed,

• Reducing the cost of the mooring hardware and floating wind turbine structure by reducing peak loads of the mooring system,

• Making marine operations more efficient and less costly, partly due to lower pre-tension and line weight in the mooring system, and opening the possibility of using smaller, less expensive vessels for marine operations.

“Thanks to our longstanding experience in the offshore oil & gas industry, we know mooring systems very well, and as we today have a large portfolio of offshore wind projects, we are proud to partner with Semar in the development of the innovative Honeymooring™ solution, which will contribute to lower the cost and the environmental impact of offshore wind energy,” said Olivier Terneaud, VP Offshore Wind at TotalEnergies.

“We are proud to have TotalEnergies as one of the important partners and contributors in the development of the Honeymooring™ solution. The overall project is being lifted by their support and the high-quality expertise which contribute to keep all of us in the forefront of the transformation towards green energy for the future,” said Thor Valsø-Jørgensen, CEO of Semar.

¹ Once a turbine is installed on a floater, it is anchored to the mooring system to ensure the platform stay around an original target position while limiting motions. 

TotalEnergies and R&D in Norway

TotalEnergies, with the support of its R&D Center in Stavanger, has for many years fostered highly efficient partnerships with industrial consortiums, research institutes and universities, and invests in an extensive portfolio of research and development activities in Norway. This will enable the Company to strengthen its experience and expertise in offshore wind technologies and accelerate the deployment of the industry to make wind power cheaper, more efficient, and more sustainable. In Norway, TotalEnergies has joined forces with Norsk Havvind and Iberdrola to respond to the 4.5 GW Utsira Nord and Southern North Sea II tenders and is committed to develop Norway’s offshore wind potential.

TotalEnergies and offshore wind

TotalEnergies is already developing a portfolio of offshore wind projects with a total capacity of more than 6 gigawatts, of which 2/3 are bottom-fixed and 1/3 are floating. These projects are located in the United Kingdom (Seagreen project, Outer Dowsing, Erebus), South Korea (Bada project), Taiwan (Yunlin project), and France (Eolmed project). The Company will participate in competitive tenders in the US, UK, France and Norway.

About TotalEnergies

TotalEnergies is a global multi-energy company that produces and markets energies on a global scale: oil and biofuels, natural gas and green gases, renewables and electricity. Our 105,000 employees are committed to energy that is ever more affordable, cleaner, more reliable and accessible to as many people as possible. Active in more than 130 countries, TotalEnergies puts sustainable development in all its dimensions at the heart of its projects and operations to contribute to the well-being of people.

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About Semar

Semar is a Structural Engineers and Marine Consultancy company based in Norway, specialized in marine operations, planning and design of tools and analysis of mooring solutions. Semar has a proven track record in the design and analysis of mooring systems, and has been granted major support from partners, including TotalEnergies, to develop the Honeymooring™ solution. By 2025, Semar intends to be world-leading in designing and analyzing mooring systems for offshore floating wind farms. Semar ambition is to create a Norwegian "Centre of excellence" in mooring design and to deliver complete mooring solutions based on its Honeymooring™ concept.

TotalEnergies Contacts

• Norway Corporate Affairs & Communications Director: Henning Eide l +47 918 66 728 l [email protected]

• Media Relations: +33 1 47 44 46 99 l [email protected] l @TotalEnergiesPR

• Investor Relations: +44 (0)207 719 7962 l [email protected]

Semar Contact

• VP Business Development and Sales: Per E. Sørum l +47 97595373 l [email protected]

Cautionary Note

This press release, from which no legal consequences may be drawn, is for information purposes only. The entities in which TotalEnergies SE directly or indirectly owns investments are separate legal entities. TotalEnergies SE has no liability for their acts or omissions. The terms “Company” or “TotalEnergies company” refer collectively to the company TotalEnergies SE and the companies it controls directly or indirectly. Such terms are used solely for the sake of convenience for purposes of the present communication. Likewise, the words “we”, “us” and “our” may also be used to refer to subsidiaries in general or to those who work for them. This document may contain forward-looking information and statements that are based on a number of economic data and assumptions made in a given economic, competitive and regulatory environment. They may prove to be inaccurate in the future and are subject to a number of risk factors. Neither TotalEnergies SE nor any of its subsidiaries assumes any obligation to update publicly any forward-looking information or statement, objectives or trends contained in this document whether as a result of new information, future events or otherwise