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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
0 Stars
Publicly accessible

WEC Controls Optimization Final Report

The over-arching project objective is to fully develop and validate optimal controls frameworks that can subsequently be applied widely to different WEC devices and concepts. Optimal controls of WEC devices represent a fundamental building block for WEC designers that must be cons...

Previsic, M. and Karthikeyan, A. Re Vision Consulting

Aug 26, 2020
1 Resources
0 Stars
Publicly accessible

FOSWEC v2: System identification and control testing at Hinsdale Wave Research Laboratory

This report summarizes the design and execution of a wave tank test of the floating oscillating surge wave energy converter (FOSWEC) in the O.H. Hinsdale Wave Research Laboratory Directional Wave Basin at Oregon State University. This device, which uses two "flaps" that pivot abou...

Coe, R. et al Sandia National Laboratories

Feb 01, 2020
2 Resources
0 Stars
Publicly accessible

Wave Tank Testing Report for Controls Validation of a Heaving Point Absorber

The core objectives of this project is to improve the power capture of three different wave energy conversion (WEC) devices by more than 50% using an advanced control system and validate the attained improvements using wave tank and full scale testing. In parallel, we will bring a...

Previsic, M. et al Re Vision Consulting

Aug 26, 2020
3 Resources
0 Stars
Publicly accessible

ALFA Non-linear Ocean Waves and PTO Control Strategy

Data from Advanced Laboratory and Field Arrays (ALFA) Non-linear Ocean Waves and Power Take-Off (PTO). Control Strategy project conducted at the O.H. Hinsdale Wave Research Laboratory (HWRL) at Oregon State University in 2019/2020. Contains two zip files (ALFANL.zip, ALFANL2.zip)...

Bosma, B. et al Pacific Marine Energy Center (PMEC)

Oct 28, 2019
9 Resources
0 Stars
Publicly accessible

CalWave xWave Device, Non-Commercially Sensitive Project Report

CalWave has developed a submerged pressure differential type Wave Energy Converter (WEC) architecture called xWave. The single body device oscillates submerged, is positively buoyant, and taut moored to the sea floor and integrates novel features such as absorber submergence depth...

Lehmann, M. and Davidson, R. CalWave Power Technologies Inc.

Feb 29, 2024
1 Resources
0 Stars
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Control of an AUV with deployable energy-harvesting kite

This paper examines the control of an autonomous underwater vehicle (AUV) with a deployable energy-harvesting kite for oceanographic observation and surveillance. The proposed design and control strategies specifically address objectives of achieving high-payload, long-endurance A...

Reed, J. et al North Carolina State University

Sep 02, 2019
1 Resources
0 Stars
Publicly accessible

3-D Geologic Controls of Hydrothermal Fluid Flow at Brady Geothermal Field, Nevada using PCA

In many hydrothermal systems, fracture permeability along faults provides pathways for groundwater to transport heat from depth. Faulting generates a range of deformation styles that cross-cut heterogeneous geology, resulting in complex patterns of permeability, porosity, and hydr...

Siler, D. and Pepin, J. United States Geological Survey

Oct 01, 2021
4 Resources
0 Stars
Publicly accessible

Machine Learning to Identify Geologic Factors Associated with Production in Geothermal Fields: A Case-Study Using 3D Geologic Data from Brady Geothermal Field and NMFk

In this paper, we present an analysis using unsupervised machine learning (ML) to identify the key geologic factors that contribute to the geothermal production in Brady geothermal field. Brady is a hydrothermal system in northwestern Nevada that supports both electricity producti...

Siler, D. et al United States Geological Survey

Oct 01, 2021
6 Resources
0 Stars
Publicly accessible

Subsurface Characterization and Machine Learning Predictions at Brady Hot Springs Results

Geothermal power plants typically show decreasing heat and power production rates over time. Mitigation strategies include optimizing the management of existing wells increasing or decreasing the fluid flow rates across the wells and drilling new wells at appropriate locations. Th...

Beckers, K. et al National Renewable Energy Laboratory

Oct 20, 2021
6 Resources
0 Stars
Publicly accessible

NTB (Non-technical Barriers) Interviews with Geothermal Stakeholders for Geothermal Development in the Salton Sea.

Non-technical barriers to deploying geothermal electricity projects in the United States can create significant delays and other challenges, leading to higher project risk and costs, lost opportunities to access policy incentives, and ultimately decreased competitiveness against o...

Levine, A. and Smith, L. National Renewable Energy Laboratory

Oct 01, 2021
1 Resources
0 Stars
Publicly accessible

Fallon FORGE: 3D Geologic Model

The 3D geologic model for the Fallon for site was constructed in EarthVision software using methods similar to (Moeck et al., 2009, 2010; Faulds et al., 2010b; Jolie et al., 2012, 2015; Hinz et al., 2013a; Siler and Faulds, 2013; Siler et al., 2016a, b) References are included in ...

Blankenship, D. and Siler, D. Sandia National Laboratories

Mar 01, 2018
1 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2014)

This dataset, compiled by NREL using data from [ABB, the Velocity Suite](http://energymarketintel.com/) and the [U.S. Energy Information Administration dataset 861](http://www.eia.gov/electricity/data/eia861/), provides average residential, commercial and industrial electricity ra...

Huggins, J. and Laboratory, N. National Renewable Energy Laboratory

Dec 01, 2015
7 Resources
0 Stars
Publicly accessible

Dataset for report: Non-Technical Barriers to Geothermal Development in California and Nevada

In California and Nevada, geothermal projects are subject to non-technical barriers, which may create development delays leading to higher project costs and risks and decreased competitiveness with other electricity generation technologies. These non-technical barriers may include...

Levine, A. et al National Renewable Energy Laboratory

Mar 10, 2022
19 Resources
0 Stars
Publicly accessible

Utah FORGE: Friction-Permeability-Seismicity Laboratory Experiments with Non-Linear Acoustics

Laboratory experimental data on saw-cut interface of Westerly Granite and Utah Forge granitoid rocks. Experiments include velocity-stepping and fluid pressure stepping experiments. Mechanical data from 3 ISCO pumps connected to a Temco pressure vessel measure axial, confining and ...

Eijsink, A. and Elsworth, D. Pennsylvania State University

Jul 08, 2022
2 Resources
0 Stars
Publicly accessible

Sonic Anemometer BAO Tower, All levels Raw Data

**Overview** This dataset is used to monitor different atmospheric variables over many levels of the 300-m Boulder Atmospheric Observatory (BAO) tower. **Data Details** * Level 00 files contain the high rate non-tilt-corrected measurements. * Level 01 files contain the high r...

Bianco, L. Wind Energy Technologies Office (WETO)

Feb 28, 2015
1 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2016)

Huggins, J. and Laboratory, N. National Renewable Energy Laboratory

Nov 13, 2017
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2018)

Huggins, J. and Laboratory, N. National Renewable Energy Laboratory

Oct 25, 2019
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2019)

Huggins, J. National Renewable Energy Laboratory (NREL)

Dec 01, 2020
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2017)

Huggins, J. and Laboratory, N. National Renewable Energy Laboratory

Oct 24, 2018
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2020)

Huggins, J. National Renewable Energy Laboratory (NREL)

Dec 01, 2021
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2021)

Huggins, J. National Renewable Energy Laboratory (NREL)

Nov 21, 2022
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2015)

Huggins, J. and Laboratory, N. National Renewable Energy Laboratory

Oct 19, 2016
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2022)

This dataset, compiled by NREL using data from ABB, the Velocity Suite (http://energymarketintel.com/) and the U.S. Energy Information Administration dataset 861 (http://www.eia.gov/electricity/data/eia861/), provides average residential, commercial and industrial electricity rate...

Huggins, J. National Renewable Energy Laboratory (NREL)

Apr 05, 2024
4 Resources
0 Stars
Publicly accessible

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2023)

Huggins, J. National Renewable Energy Laboratory (NREL)

Nov 06, 2024
4 Resources
0 Stars
Publicly accessible

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Advanced Control Systems for Wave Energy Converters

WEC Controls Optimization Final Report

FOSWEC v2: System identification and control testing at Hinsdale Wave Research Laboratory

Wave Tank Testing Report for Controls Validation of a Heaving Point Absorber

ALFA Non-linear Ocean Waves and PTO Control Strategy

CalWave xWave Device, Non-Commercially Sensitive Project Report

Control of an AUV with deployable energy-harvesting kite

3-D Geologic Controls of Hydrothermal Fluid Flow at Brady Geothermal Field, Nevada using PCA

Machine Learning to Identify Geologic Factors Associated with Production in Geothermal Fields: A Case-Study Using 3D Geologic Data from Brady Geothermal Field and NMFk

Subsurface Characterization and Machine Learning Predictions at Brady Hot Springs Results

NTB (Non-technical Barriers) Interviews with Geothermal Stakeholders for Geothermal Development in the Salton Sea.

Fallon FORGE: 3D Geologic Model

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2014)

Dataset for report: Non-Technical Barriers to Geothermal Development in California and Nevada

Utah FORGE: Friction-Permeability-Seismicity Laboratory Experiments with Non-Linear Acoustics

Sonic Anemometer BAO Tower, All levels Raw Data

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2016)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2018)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2019)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2017)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2020)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2021)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2015)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2022)

U.S. Electric Utility Companies and Rates: Look-up by Zipcode (2023)