30,223 research outputs found
Bringing power and progress to Africa in a financially and environmentally sustainable manner
EXECUTIVE SUMMARY:
The future of electricity supply and delivery on the continent of Africa represents one of the thorniest
challenges facing professionals in the global energy, economics, finance, environmental, and
philanthropic communities.
Roughly 600 million people in Africa lack any access to electricity. If this deficiency is not solved,
extreme poverty for many Africans is virtually assured for the foreseeable future, as it is widely
recognized that economic advancement cannot be achieved in the 21st Century without good electricity
supply. Yet, if Africa were to electrify in the same manner pursued in developed economies around the
world during the 20th Century, the planet’s global carbon budget would be vastly exceeded, greatly
exacerbating the worldwide damages from climate change.
Moreover, due to low purchasing power in most African economies and fiscal insolvency of most African
utilities, it is unclear exactly how the necessary infrastructure investments can be deployed to bring
ample quantities of power – especially zero-carbon power – to all Africans, both those who currently are
unconnected to any grid as well as those who are now served by expensive, high-emitting, limited and
unreliable electricity supply.
With the current population of 1.3 billion people expected to double by 2050, the above-noted
challenges associated with the African electricity sector may well get substantially worse than they
already are – unless new approaches to infrastructure planning, development, finance and operation
can be mobilized and propagated across the continent.
This paper presents a summary of the present state and possible futures for the African electricity
sector. A synthesis of an ever-growing body of research on electricity in Africa, this paper aims to
provide the reader a thorough and balanced context as well as general conclusions and
recommendations to better inform and guide decision-making and action. [TRUNCATED]This paper was developed as part of a broader initiative
undertaken by the Institute for Sustainable Energy (ISE) at
Boston University to explore the future of the global
electricity industry.
This ISE initiative – a collaboration with the Global Energy
Interconnection and Development Cooperation Organization
(GEIDCO) of China and the Center for Global Energy Policy
within the School of International and Public Affairs at
Columbia University – was generously enabled by a grant
from Bloomberg Philanthropies.
The authors gratefully acknowledge the support and
contributions of the above funders and partners in this
research
Low-carbon energy: a roadmap
Technologies available today, and those expected to become competitive over the next decade, will permit a rapid decarbonization of the global energy economy. New renewable energy technologies, combined with a broad suite of energy-efficiency advances, will allow global energy needs to be met without fossil fuels and by adding only minimally to the cost of energy services The world is now in the early stages of an energy revolution that over the next few decades could be as momentous as the emergence of oiland electricity-based economies a century ago. Double-digit market growth, annual capital flows of more than $100 billion, sharp declines in technology costs, and rapid progress in the sophistication and effectiveness of government policies all herald a promising new energy era. Advanced automotive, electronics, and buildings systems will allow a substantial reduction in carbon dioxide (CO2) emissions, at negative costs once the savings in energy bills is accounted for. The savings from these measures can effectively pay for a significant portion of the additional cost of advanced renewable energy technologies to replace fossil fuels, including wind, solar, geothermal, and bioenergy. Resource estimates indicate that renewable energy is more abundant than all of the fossil fuels combined, and that well before mid-century it will be possible to run most national electricity systems with minimal fossil fuels and only 10 percent of the carbon emissions they produce today. The development of smart electricity grids, the integration of plug-in electric vehicles, and the addition of limited storage capacity will allow power to be provided without the baseload plants that are the foundation of today's electricity systems. Recent climate simulations conclude that CO2 emissions will need to peak within the next decade and decline by at least 50 to 80 percent by 2050. This challenge will be greatly complicated by the fact that China, India, and other developing countries are now rapidly developing modern energy systems. The only chance of slowing the buildup of CO2 concentrations soon enough to avoid catastrophic climate change that could take centuries to reverse is to transform the energy economies of industrial and developing countries almost simultaneously. This would have seemed nearly impossible a few years ago, but since then, the energy policies and markets of China and India have begun to change rapidly -- more rapidly than those in many industrial countries. Renewable and efficiency technologies will allow developing countries to increase their reliance on indigenous resources and reduce their dependence on expensive and unstable imported fuelsAround the world, new energy systems could become a huge engine of industrial development and job creation, opening vast new economic opportunities. Developing countries have the potential to "leapfrog" the carbon-intensive development path of the 20th century and go straight to the advanced energy systems that are possible today. Improved technology and high energy prices have created an extraordinarily favorable market for new energy systems over the past few years. But reaching a true economic tipping point will require innovative public policies and strong political leadership
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China and the United States—A Comparison of Green Energy Programs and Policies
[Excerpt] China is the world’s most populous country with over 1.3 billion people. It has experienced tremendous economic growth over the last three decades with an annual average increase in gross domestic product of 9.8% during that period. This has led to an increasing demand for energy, spurring China to add an average of 53 gigawatts (gw) of electric capacity each year over the lastten years to its power generation capabilities.
China has set ambitious targets for developing its renewable energy resources with a major push of laws, policies, and incentives in the last few years. The wind power sector is illustrative of China’s accomplishments, as installed wind power capacity has gone from 0.567 gw in 2003 to 12.2 gw in 2008, and China surpassed the United States in 2010 with over 41 gw of installed wind power capacity. Notably, however, approximately one-third of that capacity is not yet connected to the power grid. Plans already exist to grow China’s wind power capacity to 100 gw by 2020. A similar goal exists for the solar photovoltaic power sector which China intends to increase generating capacity from 0.14 gw as of 2009 to over 1.8 gw by 2020. A hold on large and medium-scale hydropower project development has been lifted, with a virtual doubling of hydropower capacity planned. Most recently, China pledged ahead of the Copenhagen talks in 2009 that 15% of total energy consumption will come from non-fossil fuel sources by the year 2020. The 12th Five Year Plan will encompass 2011 to 2015, and will further formalize the link to green energy with specific deployment goals and investment. China recognizes that developing its domestic renewable energy industry and building its manufacturing capacity will help it meet energy demands at home and win advantages in future export markets.
The key piece of legislation in recent years for advancing renewable electricity in China is the Renewable Energy Law of 2005. The law was designed to “promote the development and utilization of renewable energy, improve the energy structure, diversify energy supplies, safeguard energy security, protect the environment, and realize the sustainable development of the economy and society.” Renewable energy is subsidized by a fee charged to all electricity users in China of about 0.029 cents per kilowatt-hour, and was originally based on the incremental cost difference between coal and renewable energy power generation.
However, energy efficiency and conservation are officially China’s top energy priority. These are considered the “low-hanging fruit” in the quest to reduce energy use and cut demand. Energy conservation investment projects have priority over energy development projects under the Energy Conservation Law of 1997, with government-financed projects being selected on “technological, economic and environmental comparisons and validations of the projects.” China is the world’s largest market for new construction, and new building standards have been in development since 2005 with national energy design criteria for residential buildings. In the power generation sector, many smaller, less efficient coal-fired power plants have been closed.
In contrast to China, some argue that the United States does not have a comprehensive national policy in place for promotion of renewable energy technologies, with some observers saying that the higher costs of renewable electricity are not conducive to market adoption. However, for both countries, the reasons for increasing the use of renewable energy are diverse, and include energy security, energy independence, cleaner air, and more recently anthropogenic climate change, sustainability concepts, and economic development. Creating new, higher quality jobs could reasonably be said to be primary drivers of policy goals in both the United States and China
Technological Solutions for Energy Security and Sustainability
This paper addresses the question: how can we minimize the expected time between now and the time when we achieve three measures of sustainability and security together -- independence from oil in cars and trucks, very deep reductions in greenhouse gas emissions and deep reductions in natural gas for electricity? Specific new technologies and metrics for progress are discussed, in context, linked to new information from IEEE, NSF, the State of the Future project and other sources
Ethiopia's infrastructure: a continental perspective
Infrastructure contributed 0.6 percentage points to Ethiopia's annual per capita GDP growth over the last decade. Raising the country's infrastructure endowment to that of the region's middle-income countries could add an additional 3 percentage points to infrastructure's contribution to growth. Ethiopia's infrastructure successes include developing Ethiopia Airlines, a leading regional carrier; upgrading its network of trunk roads; and rapidly expanding access to water and sanitation.The country's greatest infrastructure challenge lies in the power sector, where a further 8,700 megawatts of generating plant are needed over the next decade, implying a doubling of current capacity. The transport sector faces the challenges of low levels of rural accessibility and inadequate road maintenance. Ethiopia’s ICT sector currently suffers from a poor institutional and regulatory framework. Addressing Ethiopia's infrastructure deficit will require a sustained annual expenditure of 3.3 billion annually, with 1.3 billion spent annually in the mid-2000s. As of 2006, there was an annual funding gap of $3.5 billion. Improving road maintenance, removing inefficiencies in power (notably underpricing), and privatizing ICT services could shrink the gap. But Ethiopia needs a significant increase in its already proportionally high infrastructure funding and careful handling of public and private investments if it is to reach its infrastructure targets within a reasonable time.Transport Economics Policy&Planning,Infrastructure Economics,Public Sector Economics,Banks&Banking Reform,Town Water Supply and Sanitation
SOME REFLECTIONS ON CLIMATE CHANGE, GREEN GROWTH ILLUSIONS AND DEVELOPMENT SPACE
Many economists and policy makers advocate a fundamental shift towards “green growth” as the new, qualitatively-different growth paradigm, based on enhanced material/resource/energy efficiency and drastic changes in the energy mix. “Green growth” may work well in creating new growth impulses with reduced environmental load and facilitating related technological and structural change. But can it also mitigate climate change at the required scale (i.e. significant, absolute and permanent decline of GHG emissions at global level) and pace? This paper argues that growth, technological, population-expansion and governance constraints as well as some key systemic issues cast a very long shadow on the “green growth” hopes. One should not deceive oneself into believing that such evolutionary (and often reductionist) approach will be sufficient to cope with the complexities of climate change. It may rather give much false hope and excuses to do nothing really fundamental that can bring about a U-turn of global GHG emissions. The proponents of a resource efficiency revolution and a drastic change in the energy mix need to scrutinize the historical evidence, in particular the arithmetic of economic and population growth. Furthermore, they need to realize that the required transformation goes beyond innovation and structural changes to include democratization of the economy and cultural change. Climate change calls into question the global equality of opportunity for prosperity (i.e. ecological justice and development space) and is thus a huge developmental challenge for the South and a question of life and death for some developing countries (who increasingly resist the framing of climate protection versus equity).
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CleanTX Analysis on the Smart Grid
The utility industry in the United States has an opportunity to revolutionize its electric grid system by utilizing emerging software, hardware and wireless technologies and renewable energy sources. As electricity generation in the U.S. increases by over 30% from today’s generation of 4,100 Terawatt hours per year to a production of 5,400 Terawatt hours per year by 2030, a new type of grid is necessary to ensure reliable and quality power. The projected U.S. population increase and economic growth will require a grid that can transmit and distribute significantly more power than it does today. Known as a Smart Grid, this system enables two- way transmission of electrons and information to create a demand-response system that will optimize electricity delivery to consumers. This paper outlines the issues with the current grid infrastructure, discusses the economic advantages of the Smart Grid for both consumers and utilities, and examines the emerging technologies that will enable cleaner, more efficient and cost- effective power transmission and consumption.IC2 Institut
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