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Technology Development and Field Trials of EGS Drilling Systems at Chocolate Mountain

Polycrystalline diamond compact (PDC) bits are routinely used in the oil and gas industry for drilling medium to hard rock but have not been adopted for geothermal drilling, largely due to past reliability issues and higher purchase costs. The Sandia Geothermal Research Departmen...

Knudsen, S. et al Sandia National Laboratories

Jan 01, 2012
3 Resources
0 Stars
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Competing Use Analysis for Offshore Renewables and Subsea Cables

Demand for abundant and diverse resources in the oceans is growing, necessitating marine spatial planning. To inform development of Marine Hydrokinetic (MHK) and Offshore Wind (OSW) resources, the Department of Energy (DOE) has asked NREL to identify the competing uses areas betwe...

Best, B. and Kilcher, L. National Renewable Energy Laboratory

Aug 29, 2019
3 Resources
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Resource Analysis for Deep Direct-Use Feasibility Study in East Texas, Part 2

The National Renewable Energy Laboratory, Southern Methodist University Geothermal Laboratory, Eastman Chemical, Turbine Air Systems, and the Electric Power Research Institute are evaluating the feasibility of using geothermal heat to improve the efficiency of natural gas power pl...

Richards, M. et al Southern Methodist University

Mar 01, 2019
6 Resources
0 Stars
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LandRAY PTO Test Plans with NREL NWTC 5 MW Dynamometer

The overarching project objective is to demonstrate the feasibility of using an innovative PowerTake-Off (PTO) Module in Columbia Power's utility-scale wave energy converter (WEC). The PTO Module uniquely combines a large-diameter, direct-drive, rotary permanent magnet generator; ...

Prudell, J. et al Columbia Power Technologies, Inc.

Feb 29, 2016
5 Resources
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Resource Analysis for Deep Direct-Use Feasibility Study in East Texas

Richards, M. et al Southern Methodist University

Jun 28, 2018
13 Resources
0 Stars
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2014 Wind Turbine Gearbox Damage Distribution based on the NREL Gearbox Reliability Database

Despite the improvements in wind turbine gearbox design and manufacturing practices, the wind industry is still challenged by premature wind turbine gearbox failures. To help address this industry-wide challenge, a consortium called the Gearbox Reliability Collaborative (GRC) was ...

Sheng, S. National Renewable Energy Laboratory

Feb 09, 2015
1 Resources
0 Stars
In curation

Analysis of Geothermal Resources in Three Texas Counties

This project updates the geothermal resources beneath our oil and gas fields, as part of the research for the Texas GEO project. This report "Analysis of Geothermal Resources in Three Texas Counties" (October 2020) improves on previous mapping of the Texas resources for the counti...

Richards, M. and Batir, J. Southern Methodist University Huffington Department of Earth Sciences

Oct 30, 2020
3 Resources
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Advanced TidGen Power System Material Characterization Program

The TidGen Power System generates emission-free electricity from tidal currents and connects directly into existing grids using smart grid technology. The power system consists of three major subsystems: shore-side power electronics, mooring system, and turbine generator unit (TGU...

Marnagh, C. and McEntee, J. Ocean Renewable Power Company

Jun 14, 2018
2 Resources
0 Stars
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TidGen MHK Generator Composite Fatigue Analysis Procedure

A procedure was described for performing a fatigue analysis of composite foils for an MHK generator. The steps included generating load data, S-N (Stress versus Number of cycles to failure) diagrams through fatigue testing, cycle counts, damage versus load, and cumulative damage. ...

Krumpe, A. ORPC Inc.

Apr 14, 2020
2 Resources
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LCOE and Baseline Data for ORPC's RivGen 1.F River Power System

Base data and documentation of LCOE calculations for ORPC's RivGen 1.F Power System, demonstrated in the Kvichak River at Igiugig, Alaska in 2015.

Salmon, A. Igiugig Village Council

Oct 31, 2016
4 Resources
0 Stars
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GeoVision Barriers Taskforce

This submission includes papers, presentations, and data developed during the multi-year GeoVision Barriers Taskforce effort. Developers have identified many non-technical barriers to geothermal power development, including land access, permitting, and market barriers. Included i...

Young, K. and Levine, A. National Renewable Energy Laboratory

Sep 30, 2015
5 Resources
0 Stars
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Northwest National Marine Renewable Energy Center, OR Final Technical Report & Appendices

In 2008, the US Department of Energy (DOE) Wind and Water Power Program issued a funding opportunity announcement to establish university-led National Marine Renewable Energy Centers. Oregon State University and the University of Washington combined their capabilities in wave and ...

Hellin, D. Northwest National Marine Renewable Energy Center

Jun 30, 2016
2 Resources
0 Stars
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2019 Geothermal Market Report Fact Sheet

The 2020 U.S. Geothermal Power Production and District Heating Market Report is being developed by the National Renewable Energy Laboratory and Geothermal Rising, previously Geothermal Resources Council (GRC), with support from the Geothermal Technologies Office of the U.S. Depart...

Robins, J. et al National Renewable Energy Laboratory

Oct 01, 2020
1 Resources
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Validation of Innovative Exploration Technologies for Newberry Volcano: GRC Paper on Geothermal Exploration at Newberry

Validation of Innovative Exploration Technologies for Newberry Volcano: 2012 GRC Paper Geothermal Exploration at Newberry

Waibel, A. et al Davenport Newberry Holdings, LLC

May 31, 2012
1 Resources
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Geothermal Project NEPA Database

During the 2013 fiscal year, the National Renewable Energy Laboratory (NREL) developed the Geothermal National Environmental Policy Act (NEPA) Database with funding provided by the U.S. Department of Energy (DOE) Geothermal Technologies Office (GTO). The information in the databas...

Young, K. and Levine, A. National Renewable Energy Laboratory

Sep 30, 2014
4 Resources
0 Stars
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Performance estimation of resonance-enhanced dual-buoy wave energy converter using coupled time-domain simulation

This paper presents the modeling methodology and performance evaluation of the resonance-enhanced dual-buoy WEC (Wave Energy Converter) by HEM (hydrodynamic & electro-magnetic) fully-coupled-dynamics time-domain-simulation program. The numerical results are systematically compared...

Kang, H. et al Texas A&M University

Aug 31, 2020
3 Resources
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Geothermal Permitting and NEPA Timeline Analysis

In this analysis, we outline the types of NEPA-related analyses and approvals (e.g., environmental assessment), and we provide examples of geothermal development activities (e.g., well drilling) that might require each type of approval, including an overview and discussion of the ...

Young, K. et al National Renewable Energy Laboratory

Sep 30, 2014
5 Resources
0 Stars
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Next Generation RivGen Power System: Feasibility Assessment of Hydroacoutics Data for Development of a Probability of Encounter Model of Salmon Smolts

This document contains a feasibility assessment for salmon smolt characterization and analysis based on existing hydroacoustics data and probability of encounter model.

Daroux, A. and Zydlewski, G. Igiugig Village Council

Oct 04, 2017
1 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
0 Stars
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Wind Turbine Gearbox Condition Monitoring Vibration Analysis Benchmarking Datasets

Wind turbine condition monitoring (CM) can potentially help the wind industry reduce turbine downtime and operation and maintenance (O&M) cost. NREL CM research has investigated various condition-monitoring techniques such as acoustic emission (AE specifically stress wave), vibrat...

Sheng, S. National Renewable Energy Laboratory

Mar 28, 2014
5 Resources
0 Stars
Curated

Seedling Project Report: A Novel Heat Pump Integrated Underground Thermal Energy Storage for Shaping Electric Demand of Buildings

This report presents a preliminary assessment of the technical feasibility of utilizing underground thermal energy storage (UTES) and electric-driven heat pumps (EDHPs) to enable flexible behind-the-meter electric demand of buildings while meeting their thermal demands in an energ...

Liu, X. et al Oak Ridge National Laboratory

May 31, 2019
1 Resources
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Geomechanical Modeling for Thermal Spallation Drilling

Wells for Engineered Geothermal Systems (EGS) typically occur in conditions presenting significant challenges for conventional rotary and percussive drilling technologies: granitic rocks that reduce drilling speeds and cause substantial equipment wear. Thermal spallation drilling,...

Walsh, S. et al Lawrence Livermore National Laboratory

Aug 24, 2011
1 Resources
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PR100: Puerto Rico Grid Resilience and Transition to 100% Renewable Energy

The Puerto Rico Grid Resilience and Transitions to 100% Renewable Energy Study (PR100) comprehensively analyzes possible pathways for Puerto Rico to achieve its renewable energy goals while incorporating stakeholder perspectives and advancing energy resilience for all Puerto Rican...

Sky, H. et al National Renewable Energy Laboratory (NREL)

Jul 01, 2022
17 Resources
1 Stars
Curated

Funding Mechanisms for Federal Geothermal Permitting

This submission includes a presentation and paper for the Geothermal Resources Council (GRC) that discuss: Federal agency revenues received for geothermal projects, including: (1) lease revenues, (2) fixed fees, and (3) cost recovery fees for the Bureau of Land Management (BLM) a...