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Accelerated Lifetime Testing of Main Shaft Seals for Tidal Turbine Rotors

The lifetime assessment experimental platform described in this report is specifically designed for testing the low-speed main shaft seal for Verdant Power's (Verdant Power Inc., New York, New York) fifth-generation (Gen5) underwater power generation turbine. This project is joint...

Murray, R. et al National Renewable Energy Laboratory

Jul 01, 2024
1 Resources
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Advanced TidGen Power System Composites Structural Testing

Seawater aging response was investigated in marine-grade glass/epoxy, glass/vinyl ester, carbon/epoxy and carbon/vinyl ester composites with respect to water uptake, interlaminar shear strength, flexural strength, tensile strength, and tensile fracture surface observations. The re...

Krumpe, A. ORPC Inc.

Jan 06, 2020
2 Resources
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StingRAY Structural Optimization Final Technical Report

The overall project objective is to materially decrease the leveled cost of energy (LCOE) of the Columbia Power (CPower) StingRAY utility-scale wave energy converter (WEC). This will be achieved by reducing structural material and manufacturing costs and increasing energy output. ...

Lenee-Bluhm, P. Columbia Power Technologies, Inc.

Aug 05, 2020
2 Resources
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Performance Data from a 1-Meter Cross-flow Turbine with High Deflection Hydrofoils

Performance data of a 1-meter diameter cross-flow tidal turbine consisting of three NACA 0018 blades with two support struts with high deflection hydrofoils. Data was collected at the University of New Hampshire Jere A. Chase Ocean Engineering Lab within the tow tank. Three turbin...

Marone, N. et al University of New Hampshire, Atlantic Marine Energy Center (AMEC)

Jul 21, 2021
4 Resources
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Advanced Control Systems for Wave Energy Converters

This submission contains several papers, a final report, descriptions of a theoretical framework for two types of control systems, and descriptions of eight real-time flap load control policies with the objective of assessing the potential improvement of annual average capture eff...

Scruggs, J. et al Resolute Marine Energy, Inc.

Jan 30, 2017
4 Resources
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TEAMER AquaHarmonics High Fidelity WEC Sim PTO and Control Model Validation, Test Logs and Results

Collaborative effort between AquaHarmonics, Sandia National Laboratories (SNL), and the National Renewable Energy Laboratory (NREL) to revise and validate Aquaharmonics' full wave to wire model, allowing for reduced uncertainty and increased understanding of design requirements of...

Hagmuller, A. et al AquaHarmonics, Inc.

Dec 16, 2021
9 Resources
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RivGen Open Water Installation Report

The purpose of the Open Water Deployment Report is to provide an overview of the installation of the Ocean Renewable Power Company (ORPC) RivGen 2.0 Power System in Igiugig, AK, in 2019 beginning with the transportation of the system to Igiugig and ending with the deployment of th...

Tyler, R. Igiugig Village Council

Nov 01, 2019
1 Resources
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Advanced Direct-Drive Generator for Improved Availability of Oscillating Wave Surge Converter Power Generation Systems: 1hp 300rpm Axial-Flux Magnetically Geared Generator Test Data

Static torque and no load test data for a 1hp, 300rpm axial-flux magnetically geared generator prototype developed by Texas A&M EMPE Lab.

Toliyat, H. et al ABB Inc.

May 02, 2017
1 Resources
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Aquantis 2.5 MW Ocean Current Generation Device Scaled Tank Test Design and Results

Aquantis 2.5 MW Ocean Current Generation Device, Tow Tank Dynamic Rig Structural Analysis Results. This is the detailed documentation for scaled device testing in a tow tank, including models, drawings, presentations, cost of energy analysis, and structural analysis. This datase...

Swales, H. et al Dehlsen Associates, LLC

Jun 03, 2015
46 Resources
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Triton-C Point Absorber Preliminary System Design Package

Preliminary System Design Package for the Triton-C WEC, including a report and CAD drawings pertaining to the overall preliminary design, system arrangement, surface float hull, and surface float arrangement.

Mundon, T. Oscilla Power, Inc.

Dec 01, 2017
4 Resources
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TEAMER: Biofouling Analysis for Wave Energy Piston Design Load Cell Data

Biofouling and corrosion are a major concern for all ocean-deployed components, especially when mechanical motion is involved. Triton has developed the concept of a biofouling mitigation seal as part of the piston sealing assembly for the Triton Wave Energy Converter (TSI-WEC). Th...

Robertson, T. et al Triton Systems, Inc.

Nov 01, 2021
9 Resources
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Triton Point Absorber 1:30 Scale Tank Test Data for Extreme Wave Environments

This content model summarizes laboratory testing data for the Oscilla Power Triton WEC conducted at 1:30 scale. The WEC was tested in large operational waves and in extreme wave conditions along the 1 in 50 year wave contour at the DoE reference location in Humbolt Bay, CA. The WE...

Mundon, T. and Rosenberg, B. Oscilla Power, Inc.

Mar 13, 2018
26 Resources
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ALFA Shared Autonomy Manipulation Data with a Seabotix vLBV300

This report outlines marine field demonstrations for manipulation tasks with a semi-Autonomous Underwater Vehicle (sAUV). The vehicle is built off a Seabotix vLBV300 platform with custom software interfacing it with the Robot Operating System (ROS). The vehicle utilizes an inertia...

Hollinger, G. and Lawrance, N. Oregon State University

Jun 19, 2017
2 Resources
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StingRAY Updated WEC Risk Registers

Updated Risk Registers for major subsystems of the StingRAY WEC completed according to the methodology described in compliance with the DOE Risk Management Framework developed by NREL.

Rhinefrank, K. and Ondusko, M. Columbia Power Technologies, Inc.

Jun 27, 2018
17 Resources
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Tidal Energy Site Characterization East Forelands Alaska

During the summer field season in 2012, Benthic GeoScience Inc. (Benthic) mobilized under contract with Ocean Renewable Power Company (ORPC) in order to conduct precise geospatial measurements of the seafloor accomplishing a preliminary Site Characterization Study for the ORPC Eas...

Worthington, M. National Renewable Energy Laboratory

Apr 01, 2013
2 Resources
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Risk Management Plan and Risk Register for Design Low-Power Wave Energy Converter for Non-Grid Applications

Risk Registers for major subsystems completed according to the methodology described in the Risk Management Plan [DE-EE0008627 D1.2 Risk Management Plan PD v1.1 07-19-2019.pdf], also included here.

Amon, E. Columbia Power Technologies, Inc.

Jul 19, 2019
17 Resources
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M3 Wave DMP/APEX WEC Final Technical Report

This project successfully developed methods for numerical modeling of sediment transport phenomena around rigid objects resting on or near the ocean floor. These techniques were validated with physical testing using actual sediment in a large wave tank. These methods can be applie...

Morrow, M. et al M3 Wave

May 31, 2018
1 Resources
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StingRAY WEC Risk Register

Risk Registers for major subsystems of the StingRAY WEC completed in compliance with the DOE Risk Management Framework developed by NREL.

Rhinefrank, K. Columbia Power Technologies, Inc.

Feb 24, 2017
18 Resources
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TEAMER: AquaHarmonics High Fidelity WEC Sim PTO and Control Model Validation, Sim Model

Tom, N. and Leon, J. AquaHarmonics, Inc.

Dec 31, 2021
6 Resources
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StingRAY Failure Mode, Effects and Criticality Analysis: WEC Risk Registers

Analysis method to systematically identify all potential failure modes and their effects on the Stingray WEC system. This analysis is incorporated early in the development cycle such that the mitigation of the identified failure modes can be achieved cost effectively and efficient...

Rhinefrank, K. Columbia Power Technologies, Inc.

Jul 25, 2016
18 Resources
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Aquantis 2.5 MW Ocean Current Generation Device Tow Tank Dynamic Test Rig Drawings and Bill of Materials

Aquantis 2.5 MW Ocean Current Generation Device, Tow Tank Dynamic Test Rig Drawings and Bill of Materials. This submission contains information on the equipment for the scaled model tow tank testing. The information includes hardware, test protocols, and plans.