...Drastically transforming our lives over time, the winds of change have slowly but surely been affecting our nation, especially in regards to the America Dream. The core values of the American Dream may remain the same, but individual beliefs in the Dream have changed from generation to generation. While the American Dream shares some of the same values in each generation, it begins to change when it comes to specifics. A prime example of the evolution of the American dream is shown in the differences between the dreams of my grandfather, my father, and my own. My grandfather was born into poverty and worked his way through college. During my father’s life he worked his way up from the bottom to owning his own accounting firm. My grandfather’s...
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...Abstract There is a growing importance for the studies of frequency stability and control of power system with increasing levels of wind power penetration, especially in United States with a goal of 20% or more by 2030. The increasing penetration of wind in to existing synchronous based generation capacity requires the modifications in the procedures of grid frequency control as wind turbine units fail to provide inertial support and primary control reserves during the initial and later stages of frequency events respectively. Therefore, it is necessary for the wind turbines to emulate the response of current synchronous based generation capacity so as to make the power system reliable. This type of response can be introduced by control schemes developed. This report provides a literature review of the frequency control basics and controller schemes used. And also it provides an overview of the basic concepts related to the effects of wind generation on frequency behavior of the power system network. Introduction Frequency stability and control very much dependent on active power balancing is a major research topic concerned with grid integration of large wind farms. The instability of frequency occurs when power system fails to maintain it within particular limits under normal conditions. Active power imbalance indicates the variations in frequency and consequently the constancy of frequency represents the quality of power supply. Such an imbalance can be due...
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...Appendix 5.1 Wind power plants with a power output range of 1.5 kW to 25 kW Technical regulation for grid connection TF 3.2.5 Appendix 5.1 Table of contents 1. Terminology and definitions 4 2. Commissioning requirements 5 3. Verification of tolerance of frequency and voltage deviations 6 4. Verification of electricity quality requirements 9 5. Verification of control and monitoring requirements 10 6. Verification of protection requirements 14 7. Verification of data communication requirements 15 To the reader This commissioning report template contains guidelines for implementing a commissioning test to verify that a wind power plant complies with the technical, functional and documentation requirements which wind power plants with a rated output over 1.5 MW and up to 25 MW must comply with when they are connected to the Danish power grid. The report template is published by Energinet.dk and can be downloaded from www.energinet.dk. 1. Terminology and definitions The terminology and definitions used must be specified in this chapter. 2. Commissioning requirements 2.1 Introduction In the following a brief introduction must be given to the commissioning test. The scope of testing (technical tasks and time required) must also be described. Technically, the following must be verified: - Tolerance of frequency and voltage deviations - Electricity quality - Control and monitoring - Protection - Data communication and exchange...
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...The purpose of our study was to observe whether gust wind speed affects the activity of white-tailed deer population. The hypothesis was that as gust wind speed increases, deer activity decreases because the environment is less suitable for the deer, causing them to migrate. On a graph, this would look like a negative correlation. When we visited the EHMNNWR this year, we observed a noticeable difference from the previous years; there were less deer fecal pellet groups. The lowest mean pellet count occured when there was a gust wind speed of 33.6 km per hour. However, when looking at Figure 2, there were more pellet groups when the gust wind speed was the lowest, 30.4 kph, including the outlier of 658. Using the data collected, we conducted an ANOVA and two Pearson R Correlation Coefficient tests. Through this test we determined a potential association between gust wind speed and deer activity. However, neither of these tests suggests a correlation between the two variables....
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...In the letter "An Indian Father's Plea," Medicine Grizzlybear Lake writes to the teacher of, his son, Wind-Wolf. The father was upset because his sons' Kindergarten teacher had talked about/said that Wind-Wolf would be classified as a "slow learner." However, Lake is aware that it must be hard for Wind-Wolf to grab/understand different ways of learning in a new (community of people/all good people in the world) in which he has little experience. Lake wants his son to become more familiar with the western (community of people/all good people in the world) rather than only comfortable with the teachings of his Indian history. Lake informed the teacher his facts or conditions (that surround someone), hoping the teacher would be less (always judging...
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...the wind resource Q1 - Weather and climate [8 marks] a In less than 100 words, explain the difference between how climate and weather influence thewind regime of a given location.[4 marks] Climate is the long-term description of variations of temperature and wind while weather is the short-term description. Climate is classified as the average and typical range of different variables, while weather is the state of atmosphere for day to day. Climate is what you expect, weather is what your get. A designer use climate data to design the capacity of wind farm, actually weather determines the actual power output in a given period. b Consider Fig. 1. This figure is produced by taking a long timeseries of wind speed data fora given location and analysing it to determine what timescales (or frequencies) areassociatedwith the most prominent variations in wind speed. The x-axis measures period (or frequency)and the y-axis measures \Spectral Density", which in this context just means how prominenta given timescale/frequency is in producing variations in wind speed. In 100 words or less explain the shape of the graph. In 50 words or less, explain theimplicationsfor a wind farm operator.[4 marks] The spectrum – frequency diagram measures the variations of wind speed. The peak of the wave indicates a significant change in wind speed over the corresponding time period. The four peaks mean: seasonal wind speed change in a year, wind speed change in few days (4), day and night wind speed...
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...Climate change is a modern fact of science that can not be denied. It is slowly shifting and changing the environment around us and we are not merely innocent bystanders to the whole affair. California’s as well the world’s dependence upon fossil fuels, largely oil and natural gas has only contributed to the increase in carbon in the atmosphere hastening climate change and its effects. It is with this knowledge that therefore California must look towards means of alleviating its contributions to climate change as well as fighting it. The state of California along with the entire United States of America, must shift from the dependence on fossil fuel and non-renewable energy to renewable energy sources by the year 2050 to deal with the...
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...Report on Environmental Analysis of Wind Turbine Market in India ‘Suzlon’s Perspective’ As the Part of the course “Marketing Management” Course Instructor Dr. Preeta Vyas Adani Institute of Infrastructure Management Date: 08/08/2011 Submitted By: Deepesh Vaishanava,Gyan Prakash,Jyoti Shanker Pandey, Neeraj Mehra,Raja Bhattacharjee,Ujjayini Chakraborty. (Group IV) Environmental Analysis of Wind Turbine Market in India: ‘Suzlon’s Perspective’ Selected Infrastructure Sector for study: -- Wind Energy. Selected Company: -- Suzlon. Suzlon: An overview Suzlon as a group aims to provide a strong renewable energy platform thereby promising to power a greener tomorrow, today. Together with its subsidiary REpower, Suzlon has grown to be the 3rd largest wind turbine supplier in the world ensuring it builds a strong and futuristic path for the wind energy sector. From initiating a wind power project, till completion and even beyond, Suzlon ensures that nothing stands in the way of it serving its purpose. Market Leader: In India market share more than 50% , International 6.9% , Largest in India & Asia End to End Solution: Vertical Integration: delivers end-to-end wind power solutions from assembly, installation to commissioning both on shore and offshore. The company manufactures blades, generators, panels, and towers. Downward integration: turnkey projects through its project management and installation consultancy, operations & maintenance services. Extensive R &...
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...book entitled Taking Sides, written by Thomas Easton. This book, which was the 2009 edition, was right around the time Tesla began its prominent ascent. It touches on three key points which I feel to be most prudent even to this day – global warming, new electricity sources such as wind, and automobile standards. It is amazing that just 20 years ago there was still a virulent debate on the existence of global warming. Even after all the scientists agreed on the detrimental effects of fossil fuel consumption, some politicians and many others in the United States were still arguing otherwise. In Issue 8, Seth Schulman argued that this was due to the oil industry’s brilliant “disinformation campaign.” Modeled after the tobacco industry’s strategy to fool the public on the harmful effects of smoking, ExxonMobil employed tactics such as creating uncertainty, laundering information, hiring fake scientists to back their efforts, shifting the focus of the debate, and lobbying government officials to stir up doubts on global warming. With regards to the opposition, Ivan Osorio used those same tactics previously mentioned to refute the scientific fact. Instead of focusing on the actual climate changes due to anthropogenic greenhouse gases, Osorio shifted the focus to the people who believed in it. He used inflammatory words such as “jihad” and associated them with the scientists who...
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...CLIMATE CHANGE IN DECEMBER 2009, as the Copenhagen climate conference fell apart, the chairman of Greenpeace UK, John Sauven, said “the city of Copenhagen is a crime scene tonight, with the guilty men and women fleeing to the airport.” His remark captured some of the salient characteristics of climate policy: the importance of treaties and regulation; the central role of politicians, advocacy groups and non-governmental organisations such as Greenpeace; the pervasive moral certainty; and, though this was only in the background, the commitment to renewable energy, especially wind and solar power, as the primary means of cutting carbon emissions. For many people, the great problem of climate change has been a failure of regulation and political will. If only, they say, the obligations of the Kyoto accord had been more comprehensive, the regulations stricter, or if more money had gone into renewables. Then the world might have reined in the temperature rise and the public would not have become so sceptical about climate change. Not so, says Dieter Helm of Oxford University. It is not the failure of the regulations that is the problem but their basic design. They have caused people to focus on the most expensive ways of mitigating climate change, rather than the cheapest, imposing high costs for little gain. Moreover, by concentrating on their own carbon production, and how to reduce it, Europeans have ignored the impact of their continued demand for goods made using carbon- intensive...
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...the most needs of human beings and animals. Another significant impact is due to rapid population growth, causing severe fresh water scarcity. Other factors include rapid industrial growth, industrial wastes and sewage discharged and climate change. It would be feasible to overcome the water scarcity through seawater desalination; however, if seawater containing high salinity is converted to fresh water by desalination, it consumes large amounts of energy. Therefore, it is important to find suitable alternative energy resources for the desalination technology due to conventional fossil fuels crisis and environmental pollution. Renewable energy is commonly alternative energy sources considered for desalination, including solar thermal energy, solar photovoltaics, wind energy, hybrid solar PV-wind energy and geothermal. Renewable energy can power the desalination systems comprising comprise the phase change processes, which include the multistage flash, multiple effect boiling and vapour compression and membrane processes, which include reverse osmosis and electrodialysis. Finally, the paper will discuss the best renewable energy powered desalination systems. Keywords: Desalination; Renewable energy; Solar thermal energy; Solar PV energy; Wind energy; Geothermal energy 1. Introduce Water is one of the most plenty of resources in the earth surface, covering about 70%. However, it is estimated that only about 3% (approximate 36 million km3) of that is fresh water and the other about...
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...that we can use. Wind, water, sun and geothermal heat are a few that are readily available for use. However, we have to think of the pros and cons and the human interaction that comes with all four of these. Some of the pros and cons are the same with these, although from here-in there will only be talk of wind power and the good and bad sides to using it. Wind power is a totally renewable resource. Since, there is wind all over the world turbines could go up anywhere, on land and in the sea. The pros to putting wind turbines are that they are green. They do not produce any radiation or other type of pollution that can affect the local area. Efficiency always comes in to play when planning something that big and they are very efficient, both with space and what they provide. Some of the largest turbines offer power to generate enough watts for 600 homes; they also can protect against power outages, whereas telephone poles cannot since they can get knocked down more easy, for example in an ice storm. Wind power has been around since the early 1800’s when it was used to power water pumps to get water out of wells to go to farming. And, besides, once the structure is up and running and paid for the power is, for the most part, free. With the pros stated, now it is time for the cons to be gone over. Since the biggest part of a wind turbine is the wind, it can be hard to say where and for how long a certain place it going to be windy for. There could be a lot if wind one day and none...
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...The Technological Innovation System Case study on the Danish Wind Energy System Questions 1 and 2: The two most important scientific journals that publish theoretical work on Innovation Systems: The two most important scientific papers are research policy with 330 published articles about innovation systems and technological forecasting and social change with 364 published articles on innovation systems. These two journals have the most articles published on Innovation systems and the biggest journal impact factor. The 3 most cited papers that cite the paper by Malerba, and their main research question: First reference: Geels, F.W. , (2004) From sectoral systems of innovation to socio-technical systems: Insights about dynamics and change from sociology and institutional theory, Research Policy, 33 (6-7), pp. 897-920. (Cited 380 times) Main research question: How can widening the unit of analysis from the sectoral system into an socio-technical system and conceptualize the dynamic interplay between actors, structures and institutions. Second reference: Tödtling, F., Trippl, M. (2005) One size fits all?: Towards a differentiated regional innovation policy approach, Research Policy, 34 (8), pp. 1203-1219. (Cited 294 times) Main research question: How can we construct an innovation policy for regions where innovation activities are strongly different between central, peripheral and old industrial areas Third reference: Bergek, A., Jacobsson, S...
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...1 INTRODUCTION TO WIND ENERGY........................................................................................................1 1.1 What is wind energy..................................................................................................................................1 1.2 Why use wind energy ................................................................................................................................1 Why choose wind over conventional fuel sources .........................................................................1 1.2.2 Why choose wind over other renewable energy technologies............................................................1 1.3 The history and rise of wind energy ..........................................................................................................2 1.3.1 The first windmills were for mechanical power generation ...............................................................2 1.3.2 Electrical power generation ................................................................................................................3 1.4 Wind energy in Australia ..........................................................................................................................6 1.5 Wind energy in the future..........................................................................................................................7 1.5.1 Onshore wind energy ...............................................
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...Brittany Money Professor Costello R&W 305W 22 October 2014 Nuclear Power a Solution to Climate Change Climate change is all around us whether someone believes it for themselves or not. From the melting ice caps in Antarctica to the rising seas of Bangladesh. The increase of temperature in the earths atmosphere are rapidly getting worse and the reason for it is the burning of fossil fuels. We as a country, need to make a change in how we produce electricity to help our earth become a more sustainable place for our future children. A great solution to this issue we are facing is nuclear power. Nuclear power has its advantages and disadvantages just like any other form of energy. Although I believe that the advantages out weigh the disadvantages making it the perfect fit to replace fossil fuels. Nuclear power does have its disadvantages, with one being the fear of nuclear accidents. What happened at Chernobyl was the worst nuclear accident the world has seen. Although even that accident isn’t as damaging to the earth as what is happening to our earths atmosphere as we omit carbon dioxide, burning fossil fuels to power our electricity (The Right 61). Another disadvantage of nuclear power is the radioactive waste that the reactors produce. If not stored properly this waste can omit radiation into the air harming many people around the plant. Even with the potential harm scientist are able to dispose of it by solidifying it then it gets buried underground (Chandler). When its...
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