Sea Technology

APR 2018

The industry's recognized authority for design, engineering and application of equipment and services in the global ocean community

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www.sea-technology.com April 2018 | ST 13 Installation and Operations In November 2017, the BTTS structure was installed near the Cape Cod Railroad Bridge located on the southwest side of the Cape Cod Canal. A three-pile structure, the BTTS is situated in the spot that was determined to have the best overall flow. The structure has mul- tiple sensors, such as a sensor on top of the platform that will measure the water height to correspond with the water velocity measurements being recorded underwater. There will also be a data acquisition and transmission system set on top of the platform to push data out in real time or as needed. Operations have been facilitated by oceanographic and maritime professionals using state-of-the-art equipment and ex- pertise. Perhaps most importantly, the BTTS can be accessed by small boats, and the working window is not limited to slack tide, which is particularly useful when operations take a bit longer than anticipated. As BTTS operations ramp up, the plan is to acquire a sensor suite that will enable device developers to compare data with other test sites to show consistency. Power curve data and energy output are two crucial results needed by designers to enable them to assess the perfor- mance of their device and compare it to others that are being tested elsewhere. Standardization in data acquisition and processing is key to advancing the ocean energy indus- try. Who Will Utilize BTTS? Already two groups have de- ployed equipment at the site to ver- ify sensor performance. Falmouth Scientific loaned its FSI-VCM cur- rent meter to MRECo to dry run data acquisition, processing and transmission methods. University of Rhode Island engineers studying water velocity and potential power output deployed an ADCP at the site for 30 days in December, and the data are being processed. MRECo is working with at least three device developers to map out the deployment of their technol- ogies in the spring and summer of 2018. New England has a ready workforce and tremendous re- search, manufacturing and mar- itime capabilities to support the emergent technologies associat- ed with converting the kinetic power of ocean processes to clean, reliable energy for the 21st century. Massachusetts in particular has been a leader in clean en- ergy development, as exhibited in the existence of a world-class clean energy sector that radi- ates out of MassCEC. MassCEC has made a large investment in the New Bedford Marine Com- merce Terminal that is designed to accommodate the staging and assembly needs of the growing offshore wind sector, as well as providing coastal ship- ping support. Massachusetts also has the Wind Technology Test Center, one of the largest wind blade test facilities in the country, located in Boston. Now that the BTTS is up and running, Massachusetts is an at- tractive place for ocean energy device developers to test and man- ufacture equipment for the U.S. and export markets. ST Stephen B. Barrett is principal of Barrett Energy Resources Group (BERG) and a board member of MRECo. His professional focus is on the siting and development of renewable energy and in- frastructure projects, including marine hydroki- netic, solar and wind. He has a bachelor's from Union College in international relations and a master's from the University of Virginia in ma- rine affairs and environmental science. Maggie L. Merrill provides communications, stakeholder outreach and marketing assistance to marine science and technology enterprises. Her recent focus is on the emergent marine re- newable energy space. She holds a degree from Boston College in English and environmental studies, attended Sea Semester in Woods Hole, Massachusetts, and received a master's in pub- lic policy from UMass Dartmouth in marine sci- ence and technology policy. John R. Miller is executive director of MRECo, a nonprofit dedicated to sustainable growth of marine renewable energy through educa- tion, collaboration and demonstration. He has 25 years of experience with technology com- mercialization. With engineering degrees from West Point and University of Washington and an M.B.A. from Worcester Polytechnic Institute, he has a history of tackling tough projects with ingenuity and pragmatism. A team of four ocean engineers from University of Rhode Island retrieved a trawl-resistant, bottom-mounted ADCP from a 30- day deployment at the BTTS January 2018 and installed a water level sensor on top of the work platform.

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