Design/Construction of Fixed Bottom Turbines

The majority of the studies in this category focused on design and construction considerations for fixed bottom wind turbines, primarily with monopile foundations. Valuable information was provided for upcoming wind farm projects in areas with little past research:

  • Cost estimation for construction and decommissioning;
  • Scour around monopiles; and
  • Cable design.

This category also addressed interrelated structural design issues, focusing on the unique risks to offshore wind farms on the Outer Continental Shelf (OCS), including:

  • Hurricane loading;
  • Vibrations and turbine periods;
  • Fatigue; and
  • Lateral loads under cyclic loading

More research is needed to address similar issues with other foundation types.


Project No.

Title

648

Offshore Wind and Ocean Energy Installation Cost Estimation in the U.S. Outer Continental Shelf

651

Evaluate the Effect of Turbine Period of Vibration Requirements on Structural Design Parameters

656

Seabed Scour Considerations

671

Offshore Electric Cable Burial for Wind Farms: State of the Art; Standards and Guidance; Acceptable Burial Depths and Separation Distances; and Sand Wave Effects

672

Development of an Integrated Extreme Wind, Wave, Current, and Water Level Climatology to Support Standards-Based Design of Offshore Wind Projects

706

Checklist of Items for the Design Basis Document for Offshore Wind Turbines

710

Safety of Renewable Energy Operation in the U.S. Outer Continental Shelf

724

Establishment of Met-Ocean Data and Hazard Curves for Wind Energy Areas (WEAs) off the Atlantic Coast

725

Model Testing to Evaluate Degradation of Axial Capacity from Cyclic Loading

757

Design of Offshore Wind Turbine Monopiles for Lateral Loads

771

Cyclic Loading on Suction Bucket Foundations


Current Projects


Project No.

Title

Performing Activity

 

Breaking Wave Loads on Offshore Wind Turbines

University of Massashusetts

 

Assessment of Partially verses Fully Coupled Dynamic Analysis of offshore Wind Turbines

NREL

769

Laboratory Testing of Lateral Load Response for Monopiles in Sand

The University of Texas at Austin