Revolution Wind goes local with Groton-based seabed surveyors

by James Bernthal-Hooker in Windfarms 30/01/2020 Ørsted

Ørsted and Eversource, who have a joint venture in the United States, have announced a Memorandum of Understanding (MOU) with Groton-based marine automation and monitoring outfit ThayerMahan. The MOU will explore maritime wildlife monitoring and seabed surveillance provision for the upcoming Revolution Wind offshore wind farm project, which is Ørsted/Eversource JV is developing.

Once commissioned in 2023, the 704 MW Revolution Wind project will bring 304 MW of clean energy to Connecticut. It will deliver an additional 400 MW to Rhode Island.


CEO of Ørsted U.S. Offshore Wind Thomas Brostrøm said: “When we started looking at growing the offshore wind industry in Connecticut, one of the most important factors was ensuring we are setting up in an area with some of the best innovators and most skilled workforce in the world […] The people at ThayerMahan are remarkable inventors, and their technology will help us reduce any disruption offshore wind might have on North Atlantic marine life and the local fishing fleets.”


Eversource’s Vice President of Business Development Mike Auseré added: “In addition to the hundreds of well-paying, local jobs that will be required to construct our Revolution Wind project, utilizing local partners like ThayerMahan will be critical to the overall success of our projects in Connecticut and beyond.”



According to a press release, services the MOU’s signatories plan to explore include but are not limited to:

  • Marine Mammal Monitoring using passive acoustic, mobile detection systems featuring ThayerMahan’s proprietary Outpost sonar system for detecting, classifying and reporting on NARW – North Atlantic Right Whales and other marine mammals
  • Environmental monitoring from fixed and mobile systems
  • METOCEAN measurements and weather forecasting
  • Marine traffic and wind project vessel traffic monitoring
  • Seabed Survey and Inspections of undersea cable and monopile systems during construction and operations
  • Balance of Plant Services including operations and maintenance of wind turbine generators, monopole foundations, transition pieces, onshore substations and array and export cable surveys
  • Land-based real estate and construction consulting services including permit assist, land/purchase assist, zoning and entitlement assist, construction management and monitoring.

“Ørsted and Eversource have been fantastic partners. We are glad to be part of their plans to fully utilize our local businesses, which have some of the best minds in the world,”
said ThayerMahan’s CEO, Mike Connor. “This MOU is yet another commitment, in writing, that offshore wind will grow Connecticut’s economy and that the joint venture is truly interested in working with our local developers and inventors. ThayerMahan is happy to be a part of this growing industry.”


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