Spain S Photovoltaic Revolution

The Energy Return on Energy Invested (EROI or EROEI) is the amount of energy acquired from a particular energy source divided by the energy expended, or invested, in obtaining that energy. EROI is an essential and seemingly simple measure of the usable energy or “energy profit” from the exploitation of an energy source, but it is not so easy to determine all of the energy expenditures that should be included in the calculation. Because EROI values are generally low for renewable energy sources, differences in these estimates can lead to sharply divergent conclusions about the viability of these energy technologies. This book presents the first complete energy analysis of a large-scale, real-world deployment of photovoltaic (PV) collection systems representing 3.5 GW of installed, grid-connected solar plants in Spain. The analysis includes all of the factors that limit and adjust the real electricity output through one full-year cycle, and all of the fossil fuel inputs required to achieve these results. The authors’ comprehensive analysis of energy inputs, which assigns energy cost estimates to all financial expenditures, yields EROI values that are less than half of those claimed by other investigators and by the solar industry. Sensitivity analysis is used to test various assumptions in deriving these EROI estimates. The results imply that the EROI of current, large-scale PV systems may be too low to seamlessly support an energy and economic transition away from fossil fuels. Given the pervasiveness of fossil fuel subsidies in the modern economy, a key conclusion is that all components of the system that brings solar power to the consumer, from manufacturing to product maintenance and life cycle, must be improved in terms of energy efficiency. The materials science of solar conversion efficiency is only one such component. Sunny Spain represented an ideal case study as the country had the highest penetration of solar PV energy at 2.3 percent of total national demand as well as state-of-the-art expertise in solar power including grid management of intermittent, modern renewable systems. This book, written by a uniquely qualified author team consisting of the chief engineer for several major photovoltaic projects in Spain and the world’s leading expert on the concept and application of EROI, provides a comprehensive understanding of the net energy available to society from energy sources in general and from functioning PV installations under real-world conditions in particular. The authors provide critical insight into the capacity of renewable energy sources to fill the foreseeable gap between world energy demand and depletion rates for fossil fuels. · Presents the first comprehensive study of the EROI of large-scale solar PV systems in a developed country · Uses real-world operational data rather than laboratory approximations and extrapolations · Describes the dependence of one alternative energy source on the goods and services of a fossil-fueled economy · Has global implications for the potential of renewable energy sources to replace dwindling reserves of fossil fuels · Written with the first-hand knowledge of the chief, on-site engineer for many solar installations in Spain together with the leader in the development and application of the concept of EROI

In lively and engaging language, this book describes our dependence on freight transport and its vulnerability to diminishing supplies and high prices of oil. Ships, trucks, and trains are the backbone of civilization, hauling the goods that fulfill our every need and desire. Their powerful, highly-efficient diesel combustion engines are exquisitely fine-tuned to burn petroleum-based diesel fuel. These engines and the fuels that fire them have been among the most transformative yet disruptive technologies on the planet. Although this transportation revolution has allowed many of us to fill our homes with global goods even a past emperor would envy, our era of abundance, and the freight transport system in particular, is predicated on the affordability and high energy density of a single fuel, oil. This book explores alternatives to this finite resource including other liquid fuels, truck and locomotive batteries and utility-scale energy storage technology, and various forms of renewable electricity to support electrified transport. Transportation also must adapt to other challenges: Threats from climate change, financial busts, supply-chain failure, and transportation infrastructure decay. Robert Hirsch, who wrote the “Peaking of World Oil Production” report for the U.S. Department of Energy in 2005, said that planning for peak world production must start at least 10, if not 20 years ahead of time. What little planning exists focuses mainly on how to accommodate 30 percent more economic growth while averting climate change, ignoring the possibility that we are at, or near, the end of growth. Taken for granted, the modern transportation system will not endure forever. The time is now to take a realistic and critical look at the choices ahead, and how the future of transportation may unfold.

This book provides a thought provoking outline of the solutions already in hand to the challenges now facing humanity with respect to prevalent gross social and economic inequalities, ecological thresholds and tipping points, and the ever-looming threat of climate catastrophe. The authors find these solutions in the arenas of renewable energy systems, agroecological methods, and reimagined social organization. Clarity is brought to the political economic obstacles standing in the way as well as the false solutions and alleged barriers that pervade the discourse thereby delaying and obstructing progress to the solutions advanced.The authors provoke readers to face up to these challenges by demonstrating how people, all over the world, have already begun this effort through collective action ranging from the local to the global community. Drawing on their own and many other scholar's research, they reject a reliance on the 'business as usual' approach trusting the capitalist market and existing global institutions, and provide an accessible popular account with thoroughly footnoted endnotes that contain technical details and references to the scientific literature.The Earth is Not for Sale informs its readers and provides well-documented solutions in a bid to inspire readers to think critically, and potentially become more active in society.

From the best-selling, award-winning author of 1491 and 1493--an incisive portrait of the two little-known twentieth-century scientists, Norman Borlaug and William Vogt, whose diametrically opposed views shaped our ideas about the environment, laying the groundwork for how people in the twenty-first century will choose to live in tomorrow's world. In forty years, Earth's population will reach ten billion. Can our world support that? What kind of world will it be? Those answering these questions generally fall into two deeply divided groups--Wizards and Prophets, as Charles Mann calls them in this balanced, authoritative, nonpolemical new book. The Prophets, he explains, follow William Vogt, a founding environmentalist who believed that in using more than our planet has to give, our prosperity will lead us to ruin. Cut back! was his mantra. Otherwise everyone will lose! The Wizards are the heirs of Norman Borlaug, whose research, in effect, wrangled the world in service to our species to produce modern high-yield crops that then saved millions from starvation. Innovate! was Borlaug's cry. Only in that way can everyone win! Mann delves into these diverging viewpoints to assess the four great challenges humanity faces--food, water, energy, climate change--grounding each in historical context and weighing the options for the future. With our civilization on the line, the author's insightful analysis is an essential addition to the urgent conversation about how our children will fare on an increasingly crowded Earth.

The new green industrial revolution is driven by a variety of global environmental concerns. In some regions, it is spurred by the scarcity of cheap affordable renewable energy that will also lead to a reduced reliance on fossil fuel in the production of power. In others, it is driven by a need to reduce greenhouse gas (GHG) emissions from power generation. This book provides a comprehensive review of the most popular green “disruptive technologies in energy production as well as their economic impact. In addition, the book includes a multitude of international case studies where these technologies are currently deployed and their economic impact on the region. Clearly explains the scientific, engineering, technological, and economics driving the Green Revolution in power generation A guide to technologies such as renewable energy, smart green grids, and emission control technologies Packed with international case studies that provides real-world examples of how these technologies are currently being deployed around the world Explains the economic impact which these new technologies will play in building global sustainability

Essential, visionary essays about our post-carbon future Climate change, along with the depletion of oil, coal, and gas dictate that we will inevitably move away from our profound societal reliance on fossil fuels; but just how big a transformation will this be? While many policy-makers assume that renewable energy sources will provide an easy "plug-and-play" solution, author Richard Heinberg suggests instead that we are in for a wild ride; a "civilization reboot" on a scale similar to the agricultural and industrial revolutions. Afterburn consists of 15 essays exploring various aspects of the 21st century migration away from fossil fuels including: Short-term political and economic factors that impede broad-scale, organized efforts to adapt The origin of longer-term trends (such as consumerism), that have created a way of life that seems "normal" to most Americans, but is actually unprecedented, highly fragile, and unsustainable Potential opportunities and sources of conflict that are likely to emerge. From the inevitability and desirability of more locally organized economies, to the urgent need to preserve our recent cultural achievements and the futility of pursuing economic growth above all, Afterburn offers cutting-edge perspectives and insights that challenge conventional thinking about our present, our future, and the choices in our hands. AWARDS FINALIST | 2015 Foreword INDIES: Essays

Canada is a well-endowed country that serves as an ideal model to lead the reader through the development of energy, resources, and society historically and into a post-carbon future. The book provides an historical perspective and describes the physical resource limitations, energy budgets, and climate realities that will determine the potential for any transition to renewable energy. Political and social realities, including jurisdiction and energy equality issues, are addressed. However, we cannot simply mandate or legislate policies according to social and political aspirations. Policies must comply with the realities of physical laws, such as the energy return on investment (EROI) for fossil-fuel based and renewable energy systems. EROI is discussed in both historical terms and in reference to the greater efficiencies inherent in a distributed generation, mainly electric, post-carbon society. Meyer explores the often misleading concepts and terms that have become embedded in society and tend to dictate our policy making, as well as the language, social and personal goals, and metrics that need to change before the physical transition can begin at the required scale. This book also reviews what nations have been doing thus far in terms of renewables, including the successes and failures in Canada and across the globe. Ontario’s green energy fiasco, and a comparison of the different circumstances of Norway and Alberta, for example, are covered as part of the author’s comparison of a wide range of countries. What are the achievements, plans, and problems that determine how well different countries are positioned to make “the transition”? The transition path is complex, and the tools we need to develop and the physical infrastructure investments we need to make, are daunting. At some point in time, Canada and Canadians, like all nations, will be living on 100% renewable energy. Whether the social and technological level that endures sees us travelling to the stars, or subsisting at a standard of living more similar to the pre-fossil fuel era, is far from certain.