Issues Of Renewable Energy – According to McKinsey, in 2020, 27% of the world’s primary energy production will come from renewable technologies (wind, solar, tidal and hydro). In 2050, it is expected, and in fact, will increase to 73% in order for many countries to aim for sustainable goals. To achieve this ambitious goal, wind turbines will have to undergo a significant increase in installation and increase capacity and energy production efficiency – requirements that pose technical and commercial challenges.
In terms of technical challenges, despite the very large size of wind turbines and the harsh environment for wind operation, the industry needs at least 25 years of life for modern development, up to 35 years of operation using life-extending methods. High electrical output and acceptable acoustic behavior are also important factors for an efficient and environmentally friendly installation.
Issues Of Renewable Energy
In terms of commercial challenges, although wind power is the best source of renewable energy, traditional sources still have a significant market share. To be more competitive, it is important to focus on developing more powerful and efficient products with excellent operation and maintenance strategies. In short, to further improve the efficiency of wind energy, we need to reduce the surface cost of wind energy and increase its reliability.
Wind Energy Challenges And Accelerating Adoption With Cae Simulation
By applying technologies such as computer-aided engineering (CAE) to the rigorous engineering required by the renewable industry, Romax has been contributing to the development and operation of renewable energy with higher productivity and more sustainable and innovative technologies for the past 25 years. Now part of Hexagon’s Manufacturing Intelligence Division, we help companies overcome business and technical challenges in developing renewable energy solutions, such as power generation costs, maintenance, reliability, efficiency and time to market. . MSC software, acquired by Hexagon in 2017, also has a long history of simulating various aspects of wind turbine design, such as blade dynamics, fluid aerodynamics and wind turbine positioning, aero and vibroacoustics, composite material models, fatigue crack models. , and gearbox, generator and electronic cooling.
Hexagon’s customer success stories show how we understand, simplify and monitor the turbine manufacturing process to ensure absolute precision of components and assemblies.
In the wind turbine development phase, in collaboration with Korea Aerospace University, we have lighter blades without compromising texture or durability. We have also helped engineers at CADFEM to develop more efficient wind turbines using fiber reinforced wind turbines. Researchers led by the Korea Energy Research Institute and CEDIC Ltd. have conducted exciting fundamental research using our Computational Fluid Dynamics (CFD) tools for building integrated wind turbines (BIWT) in large skyscrapers for on-site power generation and resulting in a reduced carbon Footprint
To minimize wind power costs and maximize efficiency and reliability, we partnered with the US Department of Energy’s National Renewable Energy Laboratory (NREL) to understand gearbox failures, along with state-of-the-art drive designs. To collaborate and improve industrial design. . Processes, such as the use of journal bearings to reduce costs due to their simplicity compared to roller bearings. We have helped ZF Wind Power reduce energy costs by increasing the power density and durability of wind turbine drive shafts by adopting a simulation-led development process to design drive shafts with lower risk of noise in transit.
Biden Administration Has Ambitious Renewable Energy Agenda
Based on experience from 37+ DNV-GL certified wind turbine drive designs, we developed a complete, robust, compact and efficient gearbox design for NFAIC within 6 months, resulting in rapid market share gains. In cooperation with Wafangdian Bearing Group Corporation (ZWZ), we modified the bearing design with the latest CAE method and made a proposal to improve the performance in less than 2 months, which fully meets the OEM requirements.
To read all these stories in more detail and find out how our technology can be used to accelerate the use of wind energy, download our Wind Energy eBook and join our webinar series.
Dr. Xiaobing Hu manages the Hexagon Applied Solutions Group in Hexagon Design and Engineering. He has led teams in the design and development of multi-MW (up to 11MW+) wind turbine drive trains worldwide since 2007 and has helped clients achieve over 37 DNVGL certifications for their new wind turbine designs. As a Gates Scholar, Xiaobing earned a PhD in materials science from the University of Cambridge, with a prior engineering degree from Tsinghua University in Beijing. In September 2016, a gust of wind caused a power outage in the state of South Australia, leaving every home, business and factory without power for hours to days. Researchers later found that it could have been avoided if the state didn’t have so much renewable energy.
Yes, you read that right. Renewable energy from wind and solar makes the electricity grid less reliable. So why is that?
The Importance Of Renewable Energies
One reason is the “stop” question. We can control the efficiency of most power plants by changing the rate at which fossil fuels are burned, the reaction rate of a nuclear reactor, or the flow of water through a dam. But we cannot control the sunlight or the wind. If a cloud passes overhead, electricity bounces off the solar panels. If the wind speed decreases, the power from the wind turbine also decreases. This is called a break.
A power grid is balanced when supply (electricity produced by power plants) matches demand (electricity used by consumers). If you tried to power the power grid with only solar panels or wind turbines, intermittent supply and demand would make it impossible to maintain a reliable balance.
However, all of South Australia was innocent on that fateful day. Strong winds at the time actually allowed the wind farm to meet about half of the state’s total electricity needs before the blackout. The South Australian case highlights another problem with wind and solar power: it weakens the “inertia” of the power system, reducing its ability to withstand disruptions. This term needs a little more explanation.
As I explained in my last blog (I recommend reading it if you haven’t already), most power plants generate electricity using large-scale generators that run at 60 revolutions per second or “frequency”. I compared this activity to a cyclist on an exercise bike as seen in the image below.
Tribes Want Biden To Balance Renewable Energy And Cultural Issues
If one of these cyclists suddenly connects, the sudden decrease in electricity will force the remaining cyclists to work harder to meet the community’s electricity needs. If it’s too much for other cyclists, their cadence (pedaling speed) will slow down until they stop to avoid injury. This is how blackouts happen. But since the other cyclists have very high rotational speeds, it will take some time (maybe a few seconds) for their frequency to decrease. This is the “inertia” of the power system, which gives the opportunity to avoid blackouts. When the network senses that the frequency is starting to decrease, it may decide to temporarily cut off the electricity supply to Community 1. This reduces electricity demand and allows the remaining riders to provide power to other communities until the loss of power is restored. It’s not an ideal situation, but it’s better than a total blackout for everyone.
Unlike the above power plants, wind turbines and solar panels cannot be connected directly to the grid. Modern wind turbines rotate at different speeds depending on the wind speed, and solar panels have no rotating parts. With wind turbines and solar panels, an electrical converter must be used to match the electricity generated with other grid frequencies. This is shown below, where the red and green lines are converted to blue by the power transformer. If a coal plant is like a big bicycle with a lot of inertia, a power converter is like a small exercise bike with essentially no inertia, even though it produces more electricity than a coal plant. It increases the frequency of the network when there is a sudden power outage.
The 2016 wind storm in South Australia damaged several power lines, resulting in massive power outages. In a similar incident before, blackouts were avoided by temporarily shutting down the electricity supply to some consumers. But in 2016, the frequency dropped fast enough to take steps to prevent blackouts before they happened. why? Because by 2016, South Australia had decommissioned all its coal-fired power plants and built a large network of wind farms, significantly reducing the inertia of the state’s electricity grid.
So how should we switch from fossil fuels to renewable energy if it’s going to cause more blackouts? Fortunately, there are several possible solutions.
Government Issues Regulation To Jumpstart Stalled Renewable Energy Projects
A year after the 2016 blackout, Tesla built the world’s largest lithium-ion battery in South Australia. Batteries store large amounts of electricity to make the grid more reliable. It has been hailed as a huge success, eliminating network disruptions as well as providing many other benefits. In my next blog, I will explain how energy storage allows us to use more renewable energy without sacrificing reliability. Open Access Policy Open Access Basic Plan
Definition of renewable energy, renewable energy issues, issues in renewable energy, reliability of renewable energy, pros of renewable energy, efficiency of renewable energy, future of renewable energy, types of renewable energy, issues with renewable energy sources, cost of renewable energy, grid stability issues with renewable energy, issues with renewable energy
Energy
READ
Author by : Pardeep Singh
Languange Used : en
Release Date : 2021-09-14
Publisher by : John Wiley & Sons
ISBN :
Description : Energy Global energy demand has more than doubled since 1970. The use of energy is strongly related to almost every conceivable aspect of development: wealth, health, nutrition, water, infrastructure, education and even life expectancy itself are strongly and significantly related to the consumption of energy per capita. Many development indicators are strongly related to per-capita energy consumption. Fossil fuel is the most conventional source of energy but also increases greenhouse gas emissions. The economic development of many countries has come at the cost of the environment. However, it should not be presumed that a reconciliation of the two is not possible. The nexus concept is the interconnection between the resource energy, water, food, land, and climate. Such interconnections enable us to address trade-offs and seek synergies among them. Energy, water, food, land, and climate are essential resources of our natural environment and support our quality of life. Competition between these resources is increasing globally and is exacerbated by climate change. Improving resilience and securing resource availability would require improving resource efficiency. Many policies and programs are announced nationally and internationally for replacing the conventional mode and also emphasizing on conservation of fossil fuels and reuse of exhausted energy, so a gap in implications and outcomes can be broadly traced by comparing the data. This book aims to highlight problems and solutions related to conventional energy utilization, formation, and multitudes of ecological impacts and tools for the conservation of fossil fuels. The book also discusses modern energy services as one of the sustainable development goals and how the pressure on resource energy disturbs the natural flows. The recent advances in alternative energy sources and their possible future growth are discussed and on how conventional energy leads to greenhouse gas formation, which reduces energy use efficiency. The different policies and models operating is also addressed, and the gaps that remained between them. Climate change poses a challenge for renewable energy, and thus it is essential to identify the factors that would reduce the possibility of relying on sustainable energy sources. This book will be of interest to researchers and stakeholders, students, industries, NGOs, and governmental agencies directly or indirectly associated with energy research....
Renewable Energy And Wildlife Conservation
READ
Author by : Christopher E. Moorman
Languange Used : en
Release Date : 2019-09-10
Publisher by : JHU Press
ISBN :
Description : Brings together disparate conversations about wildlife conservation and renewable energy, suggesting ways these two critical fields can work hand in hand. Renewable energy is often termed simply "green energy," but its effects on wildlife and other forms of biodiversity can be quite complex. While capturing renewable resources like wind, solar, and energy from biomass can require more land than fossil fuel production, potentially displacing wildlife habitat, renewable energy infrastructure can also create habitat and promote species health when thoughtfully implemented. The authors of Renewable Energy and Wildlife Conservation argue that in order to achieve a balanced plan for addressing these two crucially important sustainability issues, our actions at the nexus of these fields must be directed by current scientific information related to the ecological effects of renewable energy production. Synthesizing an extensive, rapidly growing base of research and insights from practitioners into a single, comprehensive resource, contributors to this volume • describe processes to generate renewable energy, focusing on the Big Four renewables—wind, bioenergy, solar energy, and hydroelectric power • review the documented effects of renewable energy production on wildlife and wildlife habitats • consider current and future policy directives, suggesting ways industrial-scale renewables production can be developed to minimize harm to wildlife populations • explain recent advances in renewable power technologies • identify urgent research needs at the intersection of renewables and wildlife conservation Relevant to policy makers and industry professionals—many of whom believe renewables are the best path forward as the world seeks to meet its expanding energy needs—and wildlife conservationists—many of whom are alarmed at the rate of renewables-related habitat conversion—this detailed book culminates with a chapter underscoring emerging opportunities in renewable energy ecology. Contributors: Edward B. Arnett, Brian B. Boroski, Regan Dohm, David Drake, Sarah R. Fritts, Rachel Greene, Steven M. Grodsky, Amanda M. Hale, Cris D. Hein, Rebecca R. Hernandez, Jessica A. Homyack, Henriette I. Jager, Nicole M. Korfanta, James A. Martin, Christopher E. Moorman, Clint Otto, Christine A. Ribic, Susan P. Rupp, Jake Verschuyl, Lindsay M. Wickman, T. Bently Wigley, Victoria H. Zero...
Renewable Energy Integration
READ
Author by : Jahangir Hossain
Languange Used : en
Release Date : 2014-01-29
Publisher by : Springer Science & Business Media
ISBN :
Description : This book presents different aspects of renewable energy integration, from the latest developments in renewable energy technologies to the currently growing smart grids. The importance of different renewable energy sources is discussed, in order to identify the advantages and challenges for each technology. The rules of connecting the renewable energy sources have also been covered along with practical examples. Since solar and wind energy are the most popular forms of renewable energy sources, this book provides the challenges of integrating these renewable generators along with some innovative solutions. As the complexity of power system operation has been raised due to the renewable energy integration, this book also includes some analysis to investigate the characteristics of power systems in a smarter way. This book is intended for those working in the area of renewable energy integration in distribution networks....
Renewable Energy Governance
READ
Author by : Evanthie Michalena
Languange Used : en
Release Date : 2013-11-29
Publisher by : Springer Science & Business Media
ISBN :
Description : This book focuses on Renewable Energy (RE) governance - the institutions, plans, policies and stakeholders that are involved in RE implementation - and the complexities and challenges associated with this much discussed energy area. Whilst RE technologies have advanced and become cheaper, governance schemes rarely support those technologies in an efficient and cost-effective way. To illustrate the problem, global case-studies delicately demonstrate successes and failures of renewable energy governance. RE here is considered from a number of perspectives: as a regional geopolitical agent, as a tool to meet national RE targets and as a promoter of local development. The book considers daring insights on RE transitions, governmental policies as well as financial tools, such as Feed-in-Tariffs; along with their inefficiencies and costs. This comprehensive probing of RE concludes with a treatment of what we call the “Mega-What” question - who is benefitting the most from RE and how society can get the best deal? After reading this book, the reader will have been in contact with all aspects of RE governance and be closer to the pulse of RE mechanisms. The reader should also be able to contribute more critically to the dialogue about RE rather than just reinforce the well-worn adage that “RE is a good thing to happen”....
The Power Of Renewables
READ
Author by : Chinese Academy of Engineering
Languange Used : en
Release Date : 2011-01-29
Publisher by : National Academies Press
ISBN :
Description : The United States and China are the world's top two energy consumers and, as of 2010, the two largest economies. Consequently, they have a decisive role to play in the world's clean energy future. Both countries are also motivated by related goals, namely diversified energy portfolios, job creation, energy security, and pollution reduction, making renewable energy development an important strategy with wide-ranging implications. Given the size of their energy markets, any substantial progress the two countries make in advancing use of renewable energy will provide global benefits, in terms of enhanced technological understanding, reduced costs through expanded deployment, and reduced greenhouse gas (GHG) emissions relative to conventional generation from fossil fuels. Within this context, the U.S. National Academies, in collaboration with the Chinese Academy of Sciences (CAS) and Chinese Academy of Engineering (CAE), reviewed renewable energy development and deployment in the two countries, to highlight prospects for collaboration across the research to deployment chain and to suggest strategies which would promote more rapid and economical attainment of renewable energy goals. Main findings and concerning renewable resource assessments, technology development, environmental impacts, market infrastructure, among others, are presented. Specific recommendations have been limited to those judged to be most likely to accelerate the pace of deployment, increase cost-competitiveness, or shape the future market for renewable energy. The recommendations presented here are also pragmatic and achievable....
Unintended Consequences Of Renewable Energy
READ
Author by : Otto Andersen
Languange Used : en
Release Date : 2013-10-24
Publisher by : Springer Science & Business Media
ISBN :
Description : Energy technologies in the future will need to be based on renewable sources of energy and will, ultimately, need to be sustainable. This book provides insight into unintended, negative impacts and how they can be avoided. In order to steer away from the pitfalls and unintended effects, it is essential that the necessary knowledge is available to the developers and decision makers engaged in renewable energy. The value of this book lies in its presentation of the unintended health and environmental impacts from renewable energies. The book presents results from cross-disciplinary research on the implementation of alternative fuels in the transport sector, namely hydrogen, electricity and biodiesel. This is followed by an assessment of environmental impacts from the production of solar cells. Critical reviews on the use of nanotechnology and nanomaterials in the energy technologies is then provided, with the formation of nanoparticles during combustion of bio-blended diesel and their toxic effects, discussed in detail....
Renewable Energy
READ
Author by : Manuel Perez Donsion
Languange Used : en
Release Date : 2016-02-29
Publisher by : Cambridge Scholars Publishing
ISBN :
Description : From a scientific point of view, several challenges to renewable energy come from the intermittent nature of energy sources such as wind, solar photovoltaic and solar thermal. These problems are currently being addressed with research on power electronics converters, storage systems, Artificial Intelligence techniques, new materials and production technologies, numerical analysis techniques, among others. This research endeavours to reduce costs and find alternative energy sources that are competitive with fossil fuels. Consequently, these efforts of the scientific community will contribute to improving the quality of life on the planet. This book summarises ten years of contributions to these topics, and contains a selection of the best papers presented at the International Conferences on Renewable Energy and Power Quality (ICREPQ) from 2003 to 2012. These contributions have been selected by a team of voluntary reviewers, with two to four reviewers assigned to each paper. At the end of this process only about 5% of all presented papers were selected. Considering each paper had been reviewed before, in order to be accepted for the conference, the selected papers represent “the best of the best”. The contributors to this book represent some of the leading authorities in their areas of expertise. This book will be of particular interest to professional engineers and researchers dealing with renewable energy exploitation, but will also prove useful to postgraduate level students. In addition, it can be used as a reference book for engineers, physicists and mathematicians who are interested and involved in the operation, project management, design, and analysis of renewable sources equipment....
