Oct 22, 2019 - UMaine to develop alternative floating wind in place of Monhegan planned two 6-MW turbine project

The University of Maine at Orono will develop an alternative floating substructure design for a 10–12 MW wind turbine in place of the currently planned two 6-MW turbine floating offshore wind demonstration project planned for deployment off Monhegan Island, Maine.

DOE Awards $28 Million for Wind Energy Research, Development, and Demonstration Projects

October 22, 2019

WASHINGTON, D.C. – Today, the U.S. Department of Energy (DOE) announced the selection of 13 projects to receive a total of $28 million to advance wind energy nationwide. While utility-scale, land-based wind energy in the United States has grown to 96 gigawatts, significant opportunities for cost reductions remain, especially in the areas of offshore wind, distributed wind, and tall wind.

The funding selections were announced by DOE’s Assistant Secretary for the Office of Energy Efficiency and Renewable Energy, Daniel R Simmons, at the American Wind Energy Association Offshore WINDPOWER Conference in Boston, Massachusetts. “These projects will be instrumental in driving down technology costs and increasing consumer options for wind across the United States as part of our comprehensive energy portfolio,” said Simmons.

The selected projects span the technology development spectrum—including testing, demonstration, integration, and technical assistance—and cover all three wind energy sectors: distributed, offshore, and land-based utility-scale wind.

Four Wind Innovations for Rural Economic Development (WIRED) projects will receive a total of $6 million in federal funding to support rural electric utilities by developing technology to integrate wind with other distributed energy resources, and by simplifying distributed wind energy project development through standardized solutions and technical assistance.

  • Bergey WindPower of Norman, Oklahoma will develop a standardized distributed wind/battery/generator micro-grid system that rural utilities can provide to rural homes and businesses to deliver resilience, energy savings, and reliable power.
  • Electric Power Research Institute (EPRI) of Palo Alto, California will develop novel modeling, planning, and operation methods for deploying and operating wind energy and battery storage technologies that allow increased wind energy while maintaining rural grid reliability.
  • Iowa State University of Ames, Iowa will design optimization models and control algorithms that help rural utilities leverage distributed wind in coordination with other distributed energy resources such as battery storage and solar PV.
  • The National Rural Electric Cooperative Association of Arlington, Virginia will provide technical assistance and develop standardized wind engineering solutions, metrics, case studies, best practices, and finance models to help rural cooperatives cost effectively adopt distributed wind.

Six projects will receive a total of $7 million to conduct testing in support of innovative offshore wind research and development utilizing existing national-level testing facilities. Two of these projects involve upgrades to the facilities.

  • Clemson University of North Charleston, South Carolina will improve offshore-scale wind turbine nacelle testing through a hardware-in-the-loop capability enabling concurrent mechanical, electrical, and controller testing on the 7.5-megawatt (MW) dynamometer at its Wind Turbine Drivetrain Testing Facility.
  • Lehigh University of Bethlehem, Pennsylvania will upgrade its soil-foundation interaction laboratory to combine computer simulation with physical testing to model impacts of wind, waves, currents, and other factors on offshore wind turbine structures.
  • The Massachusetts Clean Energy Center in Boston, Massachusetts will upgrade its Wind Technology Testing Center to enable structural testing of 85 to 120-meter long blades.
  • Oregon State University of Corvallis, Oregon will use numerical models to simulate the combined effects of wind and waves on floating offshore wind turbines in a wave basin.
  • Tufts University of Medford, Massachusetts will quantify the effects of fatigue on the stiffness, strength, and durability of various marine concrete mixtures to facilitate development of cost-effective, resilient concrete offshore wind support structures.
  • The University of Massachusetts–Lowell will develop and validate a novel autonomous method of using measured acoustic pressure to detect degradation and damage in wind turbine blades.

Two offshore wind technology demonstration projects will receive up to a total of $10 million to conduct additional project development activities that enable demonstration of innovative technologies or methodologies to reduce offshore wind energy risk and cost.

  • The Lake Erie Energy Development Corporation of Cleveland, Ohio will use state-of-the-art sensing technologies to characterize the activity of birds near their project site in Lake Erie.
  • The University of Maine at Orono will develop an alternative floating substructure design for a 10–12 MW wind turbine in place of the currently planned two 6-MW turbine floating offshore wind demonstration project planned for deployment off Monhegan Island, Maine.

One project will receive up to $5 million to validate manufacturing innovations and demonstrate cost-effective tall tower technology that can overcome the transportation constraints currently hindering tall tower installations in the United States. Taller wind turbine towers can enable access to higher wind speeds, thereby increasing energy capture and reducing cost, but continued economies of scale are currently limited by transportation constraints.

  • Keystone Tower Systems of Westminster, Colorado will demonstrate on-site spiral welding of a 160-meter wind turbine tower, as well as installation of up-tower components with a tower-mounted self-hoisting crane.


Learn more about DOE’s wind energy research on the Wind Energy Technologies Office website.

 

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News Media Contact: (202) 586-4940

https://www.energy.gov/articles/doe-awards-28-million-wind-energy-research-development-and-demonstration-projects

RELATED:

DOE to Floating Wind Turbine Technology: Go Back To Square One

.....the current state of the art for Floating Offshore Wind Turbines (FOWT) is too massive and expensive for practical deployment.......FOWTs are currently designed to be large and heavy to replicate more familiar onshore wind turbine dynamics, maintain stability, and survive storms. However, this approach fundamentally limits how inexpensive FOWTs can ever become. 

http://www.windtaskforce.org/profiles/blogs/u-s-doe-seemingly-scraps-current-approaches-to-floating-wind-turb

  • Kenneth Capron

    If whales had a vote, they'd veto this idea.

  • Willem Post

    "The University of Maine at Orono will develop an alternative floating substructure design for a 10–12 MW wind turbine in place of the currently planned two 6-MW turbine floating offshore wind demonstration project planned for deployment off Monhegan Island, Maine."

    U-Maine will waste a few million FEDERAL dollars to keep hopes alive of Offshore wind aficionados and pay for propaganda forums (fora?), such as high school students "designing" floating wind turbine contraptions, which is off-the-charts nuts.

    ANYTHING "OFF MOHEGAN ISLAND" HAS TO BE ABOUT !5 MILES AWAY TO REDUCE LOW FREQUENCY NOISE and adverse visual impacts such as strobe lights.

    Here is the Norwegian design. Make sure to watch the videos.

    First Commercial Floating Wind Turbine Plant in Scotland

     

    Hywind Scotland project is the world's first commercial wind turbine plant using floating wind turbines.

     

    It is located 29 km (EIGHTEEN MILES) off PeterheadScotland to minimize visual impacts from shore.

    It has five Hywind floating turbines with a total capacity of 30 MW.

    It is operated by Hywind (Scotland) Limited, a joint venture of Equinor, Norway (75%) and Masdar, Kuwait (25%).

     

    In 2015, Equinor received permission to install 5 Hywind turbines in Scotland.  

     

    Manufacturing started in 2016 in Spain (wind turbine, rotor), Norway (tower, underwater base, assembly), and Scotland (various parts)

    The turnkey capital cost was $263 million for five 6 MW turbines, or $8,767/kW.

    They were designed to float on the surface, with about 180 m (600 ft) above the sea water level and 80 m (265 ft) submerged below the seawater level.

    Total steel weight is about 2300 metric ton, total ballasted weight is about 20,000 metric ton.

    Heavy weights in the bottom of the submerged parts serve to keep them steady and upright.

     

    The turbines were assembled at Stord in Norway in the summer of 2017, using the specialized Saipem 7000 floating crane, and then towed to the north of Scotland by sea-going tugboats.

    Make sure to see the videos showing the crane assembling the entire wind turbine.

    Nothing like that exists in Maine, or in the rest of New England.

    That means offshore wind turbine assembly and servicing would largely be performed by foreign companies, which already have built the infrastructures and other facilities during the past 25 years.

     

    https://www.youtube.com/watch?v=PUlfvXaISvc

    https://www.youtube.com/watch?v=PmkA6hbJ_j8

    https://www.youtube.com/watch?v=bQVU7UaMuck

     

    The huge, sea-going, specialized, crane (14,000-metric ton lifting capacity) is required for partial assembly on land and final assembly in an area close to shore with a very deep harbor, before towing, fully assembled, to the site.

     

    The finished turbines were towed to Peterhead, Scotland.  

    Three  cup anchors hold each turbine in place.

    About 2400 meter of chain is required, weighing 400 metric ton, for each turbine.

    The Hywind Scotland project was commissioned in October 2017.