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US Department of Energy Wind and Hydropower Technologies: Top 10 Program Accomplishments
U.S. Department of Energy Wind and Hydropower Technologies Top 10 Program Accomplishments U.S. Department of Energy Wind and Hydropower Technologies Top 10 Program Accomplishments Important activities or technologies developed by or with the support of the Wind Energy Program that have led to the vibrant wind energy market of today. Advancing Wind Turbines Clipper Windpower Wind Powered Electricity 2.5-MW Liberty wind Although the wind has been harnessed to deliver power for centuries, it was only as turbine, Medicine Bow, Wyoming, 2006. recently as the 1970s, through the efforts of the U.S. Department of Energy’s (DOE’s) new Wind Energy Program, that wind power evolved into a viable source for clean commercial power. During that decade, the Wind Energy Program designed, built, and tested the 100-kilowatt (kW) “Mod” series (100 kW was the benchmark for large wind at the time) of wind turbines. These early machines proved the feasibility of large turbine technology and paved the way for the multimegawatt wind turbines in use today. DOE’s MOD-5B 3.2-MW wind turbine, Kahuku, Oahu, Hawaiian GE Energy 1.5-MW wind turbine, Islands, 1987. Hagerman, Idaho, 2005. The Quintessential American Turbine Wind Energy Program researchers have worked with GE Energy and its predeces- sors, Zond and Enron Wind, since the early 1990s to test components such as blades, generators, and control systems on vari- ous generations of machines. This work led to the development of GE’s 1.5-megawatt (MW) wind turbine. By the end of 2007, more than 6,500 of these turbines, gener- ally considered the quintessential American wind turbine, had been installed worldwide. -
Wind Powering America FY07 Activities Summary
Wind Powering America FY07 Activities Summary Dear Wind Powering America Colleague, We are pleased to present the Wind Powering America FY07 Activities Summary, which reflects the accomplishments of our state Wind Working Groups, our programs at the National Renewable Energy Laboratory, and our partner organizations. The national WPA team remains a leading force for moving wind energy forward in the United States. At the beginning of 2007, there were more than 11,500 megawatts (MW) of wind power installed across the United States, with an additional 4,000 MW projected in both 2007 and 2008. The American Wind Energy Association (AWEA) estimates that the U.S. installed capacity will exceed 16,000 MW by the end of 2007. When our partnership was launched in 2000, there were 2,500 MW of installed wind capacity in the United States. At that time, only four states had more than 100 MW of installed wind capacity. Seventeen states now have more than 100 MW installed. We anticipate five to six additional states will join the 100-MW club early in 2008, and by the end of the decade, more than 30 states will have passed the 100-MW milestone. WPA celebrates the 100-MW milestones because the first 100 megawatts are always the most difficult and lead to significant experience, recognition of the wind energy’s benefits, and expansion of the vision of a more economically and environmentally secure and sustainable future. WPA continues to work with its national, regional, and state partners to communicate the opportunities and benefits of wind energy to a diverse set of stakeholders. -
Comparative Review of a Dozen National Energy Plans: Focus on Renewable and Efficient Energy
Technical Report A Comparative Review of a Dozen NREL/TP-6A2-45046 National Energy Plans: Focus on March 2009 Renewable and Efficient Energy Jeffrey Logan and Ted L. James Technical Report A Comparative Review of a Dozen NREL/TP-6A2-45046 National Energy Plans: Focus on March 2009 Renewable and Efficient Energy Jeffrey Logan and Ted L. James Prepared under Task No. SAO7.9C50 National Renewable Energy Laboratory 1617 Cole Boulevard, Golden, Colorado 80401-3393 303-275-3000 • www.nrel.gov NREL is a national laboratory of the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Operated by the Alliance for Sustainable Energy, LLC Contract No. DE-AC36-08-GO28308 NOTICE This report was prepared as an account of work sponsored by an agency of the United States government. Neither the United States government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States government or any agency thereof. Available electronically at http://www.osti.gov/bridge Available for a processing fee to U.S. -
A Review of International Experience with Policies to Promote Wind Power Industry Development
A Review of International Experience with Policies to Promote Wind Power Industry Development FINAL REPORT Prepared by: Joanna Lewis, Consultant to the Center for Resource Solutions Ryan Wiser, Consultant to the Center for Resource Solutions Prepared for: Energy Foundation China Sustainable Energy Program March 10, 2005 Table of Contents Executive Summary...................................................................................................................... 4 1. Introduction........................................................................................................................... 9 2. Strategies for Localization ................................................................................................. 11 2.1. Models for wind turbine manufacturing ........................................................................ 11 2.2. Models for technology acquisition: purchasing versus internal development............... 11 2.3. Incentives for technology transfers................................................................................ 12 2.4. Implications.................................................................................................................... 12 3. Potential Benefits of Localization...................................................................................... 14 3.1. Domestic economic development and employment ...................................................... 14 3.2. International exports..................................................................................................... -
Assessment of Wind Energy Resources for Electricity Generation Using WECS in North-Central Region, Nigeria
Renewable and Sustainable Energy Reviews 15 (2011) 1968–1976 View metadata, citation and similar papers at core.ac.uk brought to you by CORE Contents lists available at ScienceDirect provided by Covenant University Repository Renewable and Sustainable Energy Reviews journal homepage: www.elsevier.com/locate/rser Assessment of wind energy resources for electricity generation using WECS in North-Central region, Nigeria Olayinka S. Ohunakin Mechanical Engineering Department, Covenant University, P.M.B 1023, Ota, Ogun State, Nigeria article info abstract Article history: This paper presents a statistical analysis of wind characteristics of five locations covering the North- Received 1 October 2010 Central (NC) geo-political zone, Nigeria, namely Bida, Minna, Makurdi, Ilorin and Lokoja using Weibull Accepted 4 January 2011 distribution functions on a 36-year (1971–2007) wind speed data at 10 m height collected by the mete- orological stations of NIMET in the region. The monthly, seasonal and annual variations were examined Keywords: while wind speeds at different hub heights were got by extrapolating the 10 m data using the power law. Weibull distribution The results from this investigation showed that all the five sites will only be adequate for non-connected Wind energy conversion systems electrical and mechanical applications with consideration to their respective annual mean wind speeds Mean wind speeds Wind energy of 2.747, 4.289, 4.570, 4.386 and 3.158 m/s and annual average power densities of 16.569, 94.113, 76.399, 2 Nigeria 71.823 and 26.089 W/m for Bida, Minna, Makurdi, Ilorin and Lokoja in that order. -
Planning for Wind Energy
Planning for Wind Energy Suzanne Rynne, AICP , Larry Flowers, Eric Lantz, and Erica Heller, AICP , Editors American Planning Association Planning Advisory Service Report Number 566 Planning for Wind Energy is the result of a collaborative part- search intern at APA; Kirstin Kuenzi is a research intern at nership among the American Planning Association (APA), APA; Joe MacDonald, aicp, was program development se- the National Renewable Energy Laboratory (NREL), the nior associate at APA; Ann F. Dillemuth, aicp, is a research American Wind Energy Association (AWEA), and Clarion associate and co-editor of PAS Memo at APA. Associates. Funding was provided by the U.S. Department The authors thank the many other individuals who con- of Energy under award number DE-EE0000717, as part of tributed to or supported this project, particularly the plan- the 20% Wind by 2030: Overcoming the Challenges funding ners, elected officials, and other stakeholders from case- opportunity. study communities who participated in interviews, shared The report was developed under the auspices of the Green documents and images, and reviewed drafts of the case Communities Research Center, one of APA’s National studies. Special thanks also goes to the project partners Centers for Planning. The Center engages in research, policy, who reviewed the entire report and provided thoughtful outreach, and education that advance green communities edits and comments, as well as the scoping symposium through planning. For more information, visit www.plan- participants who worked with APA and project partners to ning.org/nationalcenters/green/index.htm. APA’s National develop the outline for the report: James Andrews, utilities Centers for Planning conduct policy-relevant research and specialist at the San Francisco Public Utilities Commission; education involving community health, natural and man- Jennifer Banks, offshore wind and siting specialist at AWEA; made hazards, and green communities. -
“PROSPECTS for OFFSHORE WIND ENERGY” a Report Written For
“PROSPECTS FOR OFFSHORE WIND ENERGY” A report written for the EU (Altener contract XVII/4.1030/Z/98-395) by The British Wind Energy Association (BWEA). Views or opinions contained within the report are not necessarily those of BWEA, EWEA or the Commission. Permission to reproduce any part of this document must be gained in writing from BWEA. Comments on the paper are welcomed by email to [email protected] 1 EXECUTIVE SUMMARY Of all renewable energy technologies, offshore wind energy has possibly the most favourable combination of the key attributes of resource, energy cost and risk. The European offshore wind resource is extremely large, energy costs are cheaper than those of many other renewable technologies (but more expensive than onshore wind), and the risks are low, as the technology has already entered the demonstration phase. Studies of offshore wind energy have been in progress for around 20 years. As a result the key issues associated with the resource, the offshore environment and the necessary adaptations of wind turbine technology are all well understood. Early studies focused on the use of MW size wind turbines, frequently in large arrays, whereas early demonstration wind farms used modest numbers of specially adapted versions of commercial machines around the 500 kW mark. Although these have operated successfully and some have delivered energy in excess of expectations, they are mostly installed in relatively sheltered waters. The conditions in some of the windier regions, for example the North Sea, will be more hostile. Several studies of European resources have confirmed that most states have accessible offshore wind energy resources equal to at least 20 % of current consumption, and most have considerably more. -
U.S. Wind Turbine Manufacturing: Federal Support for an Emerging Industry
U.S. Wind Turbine Manufacturing: Federal Support for an Emerging Industry Updated January 16, 2013 Congressional Research Service https://crsreports.congress.gov R42023 U.S. Wind Turbine Manufacturing: Federal Support for an Emerging Industry Summary Increasing U.S. energy supply diversity has been the goal of many Presidents and Congresses. This commitment has been prompted by concerns about national security, the environment, and the U.S. balance of payments. Investments in new energy sources also have been seen as a way to expand domestic manufacturing. For all of these reasons, the federal government has a variety of policies to promote wind power. Expanding the use of wind energy requires installation of wind turbines. These are complex machines composed of some 8,000 components, created from basic industrial materials such as steel, aluminum, concrete, and fiberglass. Major components in a wind turbine include the rotor blades, a nacelle and controls (the heart and brain of a wind turbine), a tower, and other parts such as large bearings, transformers, gearboxes, and generators. Turbine manufacturing involves an extensive supply chain. Until recently, Europe has been the hub for turbine production, supported by national renewable energy deployment policies in countries such as Denmark, Germany, and Spain. However, support for renewable energy including wind power has begun to wane across Europe as governments there reduce or remove some subsidies. Competitive wind turbine manufacturing sectors are also located in India and Japan and are emerging in China and South Korea. U.S. and foreign manufacturers have expanded their capacity in the United States to assemble and produce wind turbines and components. -
Characterisation of Intra-Hourly Wind Power Ramps at the Wind Farm Scale and Associated Processes
Wind Energ. Sci., 6, 131–147, 2021 https://doi.org/10.5194/wes-6-131-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Characterisation of intra-hourly wind power ramps at the wind farm scale and associated processes Mathieu Pichault1, Claire Vincent2, Grant Skidmore1, and Jason Monty1 1Department of Mechanical Engineering, The University of Melbourne, Melbourne, Victoria 3010, Australia 2School of Earth Sciences, The University of Melbourne, Melbourne, Victoria 3010, Australia Correspondence: Mathieu Pichault ([email protected]) Received: 12 May 2020 – Discussion started: 5 June 2020 Revised: 15 September 2020 – Accepted: 8 December 2020 – Published: 19 January 2021 Abstract. One of the main factors contributing to wind power forecast inaccuracies is the occurrence of large changes in wind power output over a short amount of time, also called “ramp events”. In this paper, we assess the behaviour and causality of 1183 ramp events at a large wind farm site located in Victoria (southeast Australia). We address the relative importance of primary engineering and meteorological processes inducing ramps through an automatic ramp categorisation scheme. Ramp features such as ramp amplitude, shape, diurnal cycle and seasonality are further discussed, and several case studies are presented. It is shown that ramps at the study site are mostly associated with frontal activity (46 %) and that wind power fluctuations tend to plateau before and after the ramps. The research further demonstrates the wide range of temporal scales and behaviours inherent to intra-hourly wind power ramps at the wind farm scale. 1 Introduction hourly) ramp forecasts (Zhang et al., 2017; Cui et al., 2015; Gallego et al., 2015a). -
State Attorneys General: Empowering the Clean Energy Future
Copyright © 2019 by the State Energy and Environmental Impact Center. All rights reserved. State Energy and Environmental Impact Center NYU School of Law https://www.law.nyu.edu/centers/state-impact The primary authors of this report are Jessica R. Bell, Clean Energy Attorney at the State Energy and Environmental Impact Center, and Hampden Macbeth, Staff Attorney at the State Energy and Environmental Impact Center. The authors and the Center are grateful for the research contributions of Ryan Levandowski, a student at the Georgetown University Law Center, and Maggie St. Jean, a student at the Elisabeth Haub School of Law at Pace University. This report does not necessarily reflect the views of NYU School of Law, if any. Executive Summary ........................................................................................................ 1 Section I. Overview of the Role of Attorney General Activities in Energy Matters ............................................................ 5 Protecting States’ Energy Rights ................................................................................... 5 Background .................................................................................................................... 5 Mutual Accommodation of Federal and State Energy Rights .............................. 6 Defending States’ Rights Against Preemption and Dormant Commerce Clause Claims .......................................................................................... 7 Defending States’ Rights Against Discriminatory Federal -
Wind Energy Turbines
thyssenkrupp rothe erde USA Inc. dba ROTEK Incorporated Wind 1400 South Chillicothe Road Aftermarket Aurora, OH 44202 Tel: 330.562.4000 rothe erde slewing bearings Fax: 330.562.4620 rothe erde rings psl rolling bearings Authorized distributor for rothe erde @ slewing bearings for the Wind Aftermarket rothe erde @ slewing bearings for the Wind Aftermarket rothe erde @ slewing bearings for the Wind Aftermarket This is us Upgrades Standard Upgrades Through Operational Excellence thyssenkrupp Specifically the Wind Energy Market has been driving significant continuous improvement measures over the last 10 years. All of our bearing products are manufactured according to the latest state of the art technology: rothe erde • Cleanliness requirements in forged rings • Inspection services and failure analysis • Improved quality in rolling elements thyssenkrupp rothe erde with its global presence is developing and • Improved ultrasonic and other non-destructive delivering specific bearings to the wind industry since the first turbine has testing methods and frequencies been built in the 80's. In North America we have been supplying these • Process improvements products under the Rotek brand name. Rotek, now thyssenkrupp rothe erde • Validation in world’s largest R&D facility for blade bearings USA Inc. continues to be your partner for the wind aftermarket slewing • World’s longest track record for blade bearings within the bearings and will supply slewing bearing products under the globally Service and aligned brand name rothe erde. sentire wind -
US Offshore Wind Energy
U.S. Offshore Wind Energy: A Path Forward A Working Paper of the U.S. Offshore Wind Collaborative October 2009 Contributing Authors Steven Clarke, Massachusetts Department of Energy Resources Fara Courtney, U.S. Offshore Wind Collaborative Katherine Dykes, MIT Laurie Jodziewicz, American Wind Energy Association Greg Watson, Massachusetts Executive Office of Energy and Environmental Affairs and Massachusetts Technology Collaborative Working Paper Reviewers The Steering Committee and Board of the U.S. Offshore Wind Collaborative owe a debt of gratitude to the following individuals for their careful and thoughtful review of this Working Paper and for offering their invaluable comments and suggestions. Walter Cruikshank, U.S. Department of the Interior Soren Houmoller, 1st Mile (DK) Chris Jenner, RPS Group (UK) Jim Manwell, University of Massachusetts Walt Musial, ex officio, National Renewable Energy Laboratory Bonnie Ram, Energetics USOWC Board of Directors Jack Clarke, Mass Audubon Steve Connors, Massachusetts Institute of Technology John Hummer, Great Lakes Commission Laurie Jodziewicz, American Wind Energy Association Jim Lyons, Novus Energy Partners Jeff Peterson, New York State Energy Research and Development Authority John Rogers, Union of Concerned Scientists Mark Sinclair, Clean Energy States Alliance Greg Watson, Massachusetts Executive Office of Energy and Environmental Affairs and Massachusetts Technology Collaborative Walt Musial, ex officio, National Renewable Energy Laboratory Cover: The Middelgrunden offshore wind farm in