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20% Wind by 2030: Overcoming the Challenges in West Virginia

Description: Final Report for '20% Wind by 2030: Overcoming the Challenges in West Virginia'. The objective of this project was to examine the obstacles and constraints to the development of wind energy in West Virginia as well as the obstacles and constraints to the achievement of the national goal of 20% wind by 2030. For the portion contracted with WVU, there were four tasks in this examination of obstacles and constraints. Task 1 involved the establishment of a Wind Resource Council. Task 2 involved con… more
Date: February 15, 2012
Creator: Mann, Patrick & Risch, Christine
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

20% Wind Energy - Diversifying Our Energy Portfolio and Addressing Climate Change (Brochure)

Description: This brochure describes the R&D efforts needed for wind energy to meet 20% of the U.S. electrical demand by 2030. In May 2008, DOE published its report, 20% Wind Energy by 2030, which presents an in-depth analysis of the potential for wind energy in the United States and outlines a potential scenario to boost wind electric generation from its current production of 16.8 gigawatts (GW) to 304 GW by 2030. According to the report, achieving 20% wind energy by 2030 could help address climate cha… more
Date: May 1, 2008
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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80 and 100 Meter Wind Energy Resource Potential for the United States (Poster)

Description: Accurate information about the wind potential in each state is required for federal and state policy initiatives that will expand the use of wind energy in the United States. The National Renewable Energy Laboratory (NREL) and AWS Truewind have collaborated to produce the first comprehensive new state-level assessment of wind resource potential since 1993. The estimates are based on high-resolution maps of predicted mean annual wind speeds for the contiguous 48 states developed by AWS Truewind.… more
Date: May 1, 2010
Creator: Elliott, D.; Schwartz, M.; Haymes, S.; Heimiller, D.; Scott, G.; Flowers, L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

10MW Class Direct Drive HTS Wind Turbine: Cooperative Research and Development Final Report, CRADA Number CRD-08-00312

Description: This paper summarizes the work completed under the CRADA between NREL and American Superconductor (AMSC). The CRADA combined NREL and AMSC resources to benchmark high temperature superconducting direct drive (HTSDD) generator technology by integrating the technologies into a conceptual wind turbine design, and comparing the design to geared drive and permanent magnet direct drive (PMDD) wind turbine configurations. Analysis was accomplished by upgrading the NREL Wind Turbine Design Cost and Sca… more
Date: May 1, 2011
Creator: Musial, W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

2008 Wind Energy Projects, Wind Powering America (Poster)

Description: The Wind Powering America program produces a poster at the end of every calendar year that depicts new U.S. wind energy projects. The 2008 poster includes the following projects: Stetson Wind Farm in Maine; Dutch Hill Wind Farm in New York; Grand Ridge Wind Energy Center in Illinois; Hooper Bay, Alaska; Forestburg, South Dakota; Elbow Creek Wind Project in Texas; Glacier Wind Farm in Montana; Wray, Colorado; Smoky Hills Wind Farm in Kansas; Forbes Park Wind Project in Massachusetts; Spanish For… more
Date: January 1, 2009
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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2010 Cost of Wind Energy Review

Description: This document provides a detailed description of NREL's levelized cost of wind energy equation, assumptions and results in 2010, including historical cost trends and future projections for land-based and offshore utility-scale wind.
Date: April 1, 2012
Creator: Tegen, S.; Hand, M.; Maples, B.; Lantz, E.; Schwabe, P. & Smith, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Acoustic Array Development for Wind Turbine Noise Characterization

Description: This report discusses the design and use of a multi-arm, logarithmic spiral acoustic array by the National Renewable Energy Laboratory (NREL) for measurement and characterization of wind turbine-generated noise. The array was developed in collaboration with a team from the University of Colorado Boulder. This design process is a continuation of the elliptical array design work done by Simley. A description of the array system design process is presented, including array shape design, mechanical… more
Date: November 1, 2013
Creator: Buck, S.; Roadman, J.; Moriarty, P. & Palo, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Acoustic Noise Test Report for the SWIFT Wind Turbine in Boulder, CO

Description: This report summarizes the results of an acoustic noise test that the National Renewable Energy Laboratory (NREL) conducted on the SWIFT wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 11: Acoustic Noise Measurement Techniques, IEC 61400-11 Ed.2.1, 2006-11. However, because the SWIFT is a small turbine, as defined by IEC, NREL used 10-second averages instead of 60-second averages and uti… more
Date: April 1, 2013
Creator: Roadman, J. & Huskey, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Acoustic Noise Test Report for the Viryd CS8 Wind Turbine

Description: This report summarizes the results of an acoustic noise test that the National Renewable Energy Laboratory (NREL) conducted on the Viryd CS8 wind turbine. This test was conducted in accordance with the International Electrotechnical Commission's (IEC) standard, Wind Turbine Generator Systems Part 11: Acoustic Noise Measurement Techniques, IEC 61400-11 Ed.2.1, 2006-11. However, because the Viryd CS8 is a small turbine, as defined by IEC, NREL used 10-second averages instead of 60-second averages… more
Date: July 1, 2013
Creator: Roadman, J. & Huskey, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Acoustic Tests of Small Wind Turbines: Preprint

Description: Eight small wind turbines ranging from 400 watts to 100 kW in rated power were tested for acoustic emissions at the U.S. Department of Energy's National Renewable Energy Laboratory. Rigorous test procedures based on international standards were followed for measurements and data analyses. Results are presented in the form of sound pressure level versus wind speed, where the sound was recorded downwind of the turbine at a distance equal to the hub height plus half the rotor diameter. When there … more
Date: October 1, 2003
Creator: Migliore, P.; van Dam, J. & Huskey, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced Coal Wind Hybrid: Economic Analysis

Description: Growing concern over climate change is prompting new thinking about the technologies used to generate electricity. In the future, it is possible that new government policies on greenhouse gas emissions may favor electric generation technology options that release zero or low levels of carbon emissions. The Western U.S. has abundant wind and coal resources. In a world with carbon constraints, the future of coal for new electrical generation is likely to depend on the development and successful a… more
Date: November 28, 2008
Creator: Phadke, Amol; Goldman, Charles; Larson, Doug; Carr, Tom; Rath, Larry; Balash, Peter et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Control Design and Field Testing for Wind Turbines at the National Renewable Energy Laboratory: Preprint

Description: Utility-scale wind turbines require active control systems to operate at variable rotational speeds. As turbines become larger and more flexible, advanced control algorithms become necessary to meet multiple objectives such as speed regulation, blade load mitigation, and mode stabilization. At the same time, they must maximize energy capture. The National Renewable Energy Laboratory has developed control design and testing capabilities to meet these growing challenges.
Date: May 1, 2004
Creator: Hand, M. M.; Johnson, K. E.; Fingersh, L. J. & Wright, A. D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Advanced wind turbine design studies: Advanced conceptual study. Final report

Description: In conjunction with the US Department of Energy and the National Renewable Energy Laboratory`s Advanced Wind Turbine Program, the Atlantic Orient Corporation developed preliminary designs for the next generation of wind turbines. These 50 kW and 350 kW turbines are based upon the concept of simplicity. By adhering to a design philosophy that emphasizes simplicity, we project that these turbines will produce energy at extremely competitive rates which will unlock the potential of wind energy dom… more
Date: August 1, 1994
Creator: Hughes, P. & Sherwin, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Wind Turbine Drivetrain Concepts: Workshop Report, June 29-30, 2010

Description: This report presents key findings from the Department of Energy's Advanced Drivetrain Workshop, held on June 29-30, 2010 in Broomfield, Colorado, to assess different advanced drivetrain technologies, their relative potential to improve the state-of-the-art in wind turbine drivetrains, and the scope of research and development needed for their commercialization in wind turbine applications.
Date: December 1, 2010
Creator: DOE, EERE
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced wind turbine near-term product development. Final technical report

Description: In 1990 the US Department of Energy initiated the Advanced Wind Turbine (AWT) Program to assist the growth of a viable wind energy industry in the US. This program, which has been managed through the National Renewable Energy Laboratory (NREL) in Golden, Colorado, has been divided into three phases: (1) conceptual design studies, (2) near-term product development, and (3) next-generation product development. The goals of the second phase were to bring into production wind turbines which would m… more
Date: January 1, 1996
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Advanced Wind Turbine Program Next Generation Turbine Development Project: June 17, 1997--April 30, 2005

Description: This document reports the technical results of the Next Generation Turbine Development Project conducted by GE Wind Energy LLC. This project is jointly funded by GE and the U.S. Department of Energy's National Renewable Energy Laboratory.The goal of this project is for DOE to assist the U.S. wind industry in exploring new concepts and applications of cutting-edge technology in pursuit of the specific objective of developing a wind turbine that can generate electricity at a levelized cost of ene… more
Date: May 1, 2006
Creator: GE Wind Energy, LLC
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

AeroDyn Theory Manual

Description: AeroDyn is a set of routines used in conjunction with an aeroelastic simulation code to predict the aerodynamics of horizontal axis wind turbines. These subroutines provide several different models whose theoretical bases are described in this manual. AeroDyn contains two models for calculating the effect of wind turbine wakes: the blade element momentum theory and the generalized dynamic-wake theory. Blade element momentum theory is the classical standard used by many wind turbine designers an… more
Date: January 1, 2005
Creator: Moriarty, P. J. & Hansen, A. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic and Performance Measurements on a SWT-2.3-101 Wind Turbine

Description: This paper provides an overview of a detailed wind turbine field experiment being conducted at NREL under U.S. Department of Energy sponsorship. The purpose of the experiment is to obtain knowledge about the aerodynamics, performance, noise emission and structural characteristics of the Siemens SWT-2.3-101 wind turbine.
Date: October 1, 2011
Creator: Medina, P.; Singh, M.; Johansen, J.; Jove, A.R.; Machefaux, E.; Fingersh, L. J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Aerodynamic testing of a rotating wind turbine blade

Description: Aerodynamic, load, flow-visualization, and inflow measurements were taken on a downwind horizontal-axis wind turbine (HAWT). A video camera mounted on the rotor recorded video images of tufts attached to the low-pressure side of the blade. Strain gages, mounted every 10% of the blade's span, provided load and pressure measurements. Pressure taps at 32 chordwise positions recorded pressure distributions. Wind inflow was measured via a vertical-plane array of anemometers located 10 m upwind. The … more
Date: January 1, 1990
Creator: Butterfield, C.P. & Nelsen, E.N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

All wind farm uncertainty is not the same: The economics of common versus independent causes

Description: There is uncertainty in the performance of wind energy installations due to unknowns in the local wind environment, machine response to the environment, and the durability of materials. Some of the unknowns are inherently independent from machine to machine while other uncertainties are common to the entire fleet equally. The FAROW computer software for fatigue and reliability of wind turbines is used to calculate the probability of component failure due to a combination of all sources of uncer… more
Date: December 31, 1994
Creator: Veers, P.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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