News & Media

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MAV Subsea Survey in Searsport off Mack Point to start 11/15

Alpine Ocean Seismic Survey, Inc., (Alpine) will conduct a geophysical survey for Maine Aqua Ventus (MAV) on November 15 - November 19, weather permitting, west and south of Mack Point in Searsport, Maine. The survey will be used to identify…
RV Shearwater

DELAYED - MAV Subsea Survey from Port Clyde to Monhegan Test Site

The following statement was sent via email to Zone D License Holders around St George and Monhegan on November 3, 2017: In response to feedback received from the Zone D fishing community and the Maine Department of Marine Resources, Maine…
Maine Aqua Ventus logo

Response to Petition to Ban Subsea Cables in Port Clyde

We look forward to continued dialogue with residents and fishermen of St. George as to what the facts of the proposed MAV demonstration project are. Information being distributed through the recent petition effort does not accurately reflect…
Maine Aqua Ventus logo

Project Description, Posters, and NEPA Scoping Comment Summaries Available Through DOE Website

As part of the U.S. Department of Energy (DOE) NEPA process, a current project description, posters, and other project details are available for viewing on the DOE NEPA website. On February 28, 2017, DOE conducted two public scoping informational…

UMaine Overviews of Test Site Selection, Avian and Bird Studies Available for Download

The University of Maine has published two new overview documents relating to the UMaine Deepwater Offshore Wind Test Site at Monhegan Island. UMaine Deepwater Offshore Wind Test Site Overview This document provides an overview of the test…
Image from Monhegan

March 10 Newsletter, DOE NEPA Scoping Session Follow-up

In this newsletter, a brief update is provided following the recent U.S. Department of Energy NEPA Scoping Sessions held last week in St. George and on Monhegan Island. MAV also provided a printable copy of our commitment to island and coastal…
METF community meeting

MAV February 2017 Newsletter, DOE Scoping Sessions Scheduled

Beginning in February 2017, in an ongoing effort to continue to share project milestones with communities and key stakeholders, MAV has launched a newsletter to ensure continued dialogue and information sharing as they work toward a planned…

Media Inquiries

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Media Gallery


The VolturnUS 1:8 experienced 70′ equivalent waves in a November 2013 storm off the coast of Castine, Maine.

Operational footage of the VolturnUS 1:8 during the 2013 winter storm, “Electra,” off the coast of Castine, ME.


VolturnUS 1:8 is a 65-foot-tall floating turbine prototype that is 1:8th the scale of a 6-megawatt (MW), 450-foot rotor diameter design. VolturnUS 1:8 the first grid-connected offshore wind turbine in the Americas. The patent-pending VolturnUS 1:8, was designed and built at UMaine, assembled at Cianbro’s facility in Brewer, successfully towed nearly 30 miles from Brewer by a Maine Maritime Academy tugboat, and anchored for testing off the coast of Castine, Maine in 90 ft of water.

The VolturnUS 1:8 was deployed in Castine, ME, for 18 months. On June 13, 2013, the turbine was energized and began delivering electricity through an undersea cable to the Central Maine Power electricity grid.

The VolturnUS 1:8 was towed down the Penobscot River from Cianbro’s facility in Brewer, ME, to Castine, ME, by Maine Maritime Academy.

The VolturnUS 1:8 was launched from Cianbro’s facility in Brewer, ME, on May 21, 2013. More than 2,000 people viewed the launch in person and online.

The VolturnUS 1:8 was deployed alongside DeepCLiDAR. DeepCLiDAR is an advanced metocean buoy outfitted with LIDAR, created with funding from the US Department of Energy and the Maine Technology Institute. DeepCLiDAR can be used in remote marine environments to provide high quality, low-cost offshore wind resource data, metocean monitoring, and ecological characterization capabilities. The system was developed in partnership with Dr. Neal Pettigrew of the UMaine Physical Oceanography Group, AWS Truepower, and NRG Renewable Systems.