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Avaliação da comunicação da sustentabilidade de energy utilities e análise dos principais rankings de sustentabilidade

Alves, Ana Isabel Castanheira
Fonte: Faculdade de Ciências e Tecnologia Publicador: Faculdade de Ciências e Tecnologia
Tipo: Dissertação de Mestrado
Publicado em //2011 Português
Relevância na Pesquisa
66.26%
Dissertação para obtenção do Grau de Mestre em Engenharia do Ambiente Perfil de Gestão e Sistemas Ambientais; O sector da electricidade é um negócio em expansão não só devido à sua procura como também por ser um campo tecnológico susceptível de um crescimento excepcional. Pela sua importância para a sociedade e pelos impactes ambientais associados à sua transformação, é indispensável a criação de uma política de sustentabilidade nesta indústria. Pretende-se com esta dissertação fazer uma análise do modo como as energy utilities divulgam a sua informação às partes interessadas. Para tal, recorreu-se à elaboração de uma apreciação independente, cujos critérios correspondem a aspectos que foram considerados como sendo os mais importantes numa avaliação de sustentabilidade empresarial, utilizando como auxílio algumas das directrizes descritas no Global Reporting Initiative. A identificação de fundos de investimento com desenvolvimento sustentável pode facilitar decisões de investimento mais bem informadas. Essas decisões estão sujeitas a uma apreciação e podem ser defendidas com base num rating objectivo. Assim, reuniu-se informação sobre os principais índices de sustentabilidade existentes de modo a poder comparar metodologias e resultados com o ranking elaborado. Pretende-se com esta análise poder determinar quais as melhores empresas do sector...

New electric utility management and control systems : proceedings of conference, held in Boxborough, Massachusetts, May 30-June 1, 1979

MIT Energy Laboratory; MIT Homeostatic Control Study Group
Fonte: MIT Energy Laboratory Publicador: MIT Energy Laboratory
Tipo: Relatório Formato: 13118686 bytes; application/pdf
Português
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46.06%
"This work was supported by the Center for Energy Policy Research and the Electric Power Systems Engineering Laboratory of the Massachusetts Institute of Technology."

Application of sector and location specific models of the "worth" of renewable energy technologies

Tabors, Richard D
Fonte: Massachusetts Institute of Technology. Energy Laboratory Publicador: Massachusetts Institute of Technology. Energy Laboratory
Tipo: Trabalho em Andamento Formato: 1194499 bytes; application/pdf
Português
Relevância na Pesquisa
45.94%
Renewable energy sources such as solar and wind hold the potential for providing a significant portion of the U.S. energy requirements in the decades ahead. Unlike other energy sources their availability is determined by nonrandom events beyond the control of the consumer. In addition, macro-, meso-, and microclimatic conditions play a major role in determining the worth of such renewable energy sources to their owners. The worth of these new technologies will be a function of owner, location, and application as well as the traditional capital and operating cost, i.e., their worth to an owner in the southwest will be different form that to an owner in the northeast or the southeast. Dealing with energy sources, with geographic and sectorally specific energy values and with energy technologies with which we have little or no experience in the marketplace has created a set of challenges in analysis and modeling of these new technologies in competition with traditional energy technologies and with other emerging technologies. This paper will look at one simulation methodology for estimating the worth of renewable energy systems providing electricity, such as wind or solar photovoltaic power systems, and will discuss the interaction between such systems and traditional electric utilities with which they may or may not be integrated...

Competitive electricity markets and investment in new generating capacity

Joskow, Paul L.
Fonte: MIT Center for Energy and Environmental Policy Research Publicador: MIT Center for Energy and Environmental Policy Research
Tipo: Trabalho em Andamento Formato: [i], 61, [11] p
Português
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45.91%
Evidence from the U.S. and some other countries indicates that organized wholesale markets for electrical energy and operating reserves do not provide adequate incentives to stimulate the proper quantity or mix of generating capacity consistent with mandatory reliability criteria. A large part of the problem can be associated with the failure of wholesale spot market prices for energy and operating reserves to rise to high enough levels during periods when generating capacity is fully utilized. Reforms to wholesale energy markets, the introduction of well-design forward capacity markets, and symmetrical treatment of demand response and generating capacity resources to respond to market and institutional imperfections are discussed. This policy reform program is compatible with improving the efficiency of spot wholesale electricity markets, the continued evolution of competitive retail markets, and restores incentives for efficient investment in generating capacity consistent with operating reliability criteria applied by system operators. It also responds to investment disincentives that have been associated with volatility in wholesale energy prices, limited hedging opportunities and to concerns about regulatory opportunism.

Financing Energy Efficiency : Lessons from Brazil, China, India, and Beyond

Taylor, Robert P.; Govindarajalu, Chandrasekar; Levin, Jeremy; Meyer, Anke S.; Ward, William A.
Fonte: Washington, DC : World Bank Publicador: Washington, DC : World Bank
Português
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45.97%
Energy for heating, cooling, lighting, mechanical power, and various chemical processes is a fundamental requirement for both daily life and economic development. The negative impact on the environment of current energy systems is increasingly alarming, especially the global warming consequences of burning fossil fuels. The future requires change through the development and adoption of new supply technologies, through a successful search for new, less resource-intensive paths of economic development, and through adoption of energy. Greater energy efficiency is key for shifting country development paths toward lower-carbon economic growth. Especially in developing countries and transition economies, vast potential for energy savings opportunities remain unrealized even though current financial returns are strong. Activities included specialized technical assistance, training, and applied research covering the four primary areas of country interest: (a) development of commercial banking windows for energy efficiency; (b) support for developing energy service companies (ESCOs); (c) guarantee funds for energy efficiency investment financing; and (d) equity funding for ESCOs or energy efficiency projects. One clear message from the experience of the three country Energy Efficiency Project is the importance of establishing and maintaining practical...

Measuring the Impact of Energy Reform : Practical Options

Foster, Vivien
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Português
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46.16%
Government interventions in energy markets have many effects on the poor. But there has been little measurement of these effects, making it hard to know exactly what the effects of a project have been, and hard to compare those of different interventions. This could be rectified by building impact indicators into energy projects at the design phase--and doing so consistently and systematically, across countries and over time. This Note discusses the development of suitable indicators. First, agreement is needed on workable definitionsof poverty and what would constitute welfare improvements for the poor. Then there must be explicit hypotheses on how specific elements of energy projects, individually or together, affect the poor. Finally, the indicators must be based on data tha can be realistically be collected in real-life low-income communities, in real-life developing countries.

Public Procurement of Energy Efficiency Services : Lessons from International Experience

Singh, Jas; Limaye, Dilip R.; Henderson, Brian; Shi, Xiaoyu
Fonte: Washington, DC: World Bank Publicador: Washington, DC: World Bank
Português
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45.97%
This book explores energy savings performance contracts (ESPCs) as a means of overcoming some of the more difficult hurdles in promoting energy efficiency in public facilities. ESPCs represent a very attractive solution to many of the problems that are unique to public agencies, since they involve outsourcing a full project cycle to a service provider. From the detailed audit through implementation and savings verification, ESPCs can relieve public agencies of bureaucratic hassles, while service providers can secure the off-budget project financing and be paid from the actual energy savings, thus internalizing project performance risks. ESPC bidding also allows public agencies to select from a range of technical solutions, maximizing the benefit to the agency. Global experience suggests that ESPCs have been more effective at realizing efficiency gains than many other policy measures and programs, since the service providers have a vested interest in ensuring that a project is actually implemented. Many of the country governments interviewed for the study also saw enormous potential in bundling, financing, and implementing energy efficiency projects on a larger scale in the public sector, a method that increases the rate of efficiency gains and creates further benefits through economies of scale.

Transmitting Renewable Energy to the Grid : The Case of Texas

Madrigal, Marcelino; Jordan, Rhonda Lenai
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Artigo de Revista Científica
Português
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46.15%
The note is based on original work by Marcelino Madrigal and Steven Stoft, "Transmission Expansion for Renewable Energy Scale-Up: Emerging Lessons and Recommendations". Texas leads the United States with 9,528 MW of installed wind power capacity, a level exceeded by only four countries. The state needed more infrastructure to transmit electricity generated from renewable sources, but the regulator could not approve transmission expansion projects in the absence of financially committed generators. To solve the problem, Texas devised a planning process that quickly connects energy systems to the transmission system. The system is based on the designation of competitive renewable energy zones.

Improving Energy Access to the Urban Poor in Developing Countries

The Energy and Resources Institute
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Português
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45.97%
The case studies documented in this report aim to inform the energy access community (including practitioners, civil society groups, project planners, end users) about best practices of successful energy access initiatives targeted at slum dwellers. Eight case studies focusing on electrification and household energy were selected from India, Bangladesh, Colombia and Brazil, all countries that have had varying success in providing access to modern energy services for slum dwellers. The cases had to meet all or some of the following criteria: 1) limited to developing countries; 2) demonstrate innovative methods of improving energy access, including collaborative stakeholder engagement; 3) at least one example of small local energy service providers; 4) contributed to community development by promoting local skill development and income generation; and 5) representative of electricity and different sources of household energy. The case studies describe the existing conditions in the slum, type of energy service provided...

Financing Municipal Energy Efficiency Projects

Energy Sector Management Assistance Program
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Português
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46.15%
Improving the energy efficiency (EE) of municipally owned buildings, such as schools and hospitals, and municipal infrastructure, such as public lighting, water supply, and district heating, offers budgetary savings on energy bills and a wide range of environmental and socioeconomic benefits. But relatively few municipal EE projects have been developed and implemented successfully. The challenges that limit EE investments in municipal buildings and facilities can be grouped into three broad areas: (i) a lack of awareness and incentives; (ii) insufficient implementation capacity; and (iii) limited access to financing. All three sets of challenges need to be addressed to scale up successful implementation of municipal EE projects. This Guidance Note focuses on the key issues faced by municipalities in accessing financing for EE investments, particularly for projects in the following four areas: indoor lighting, building retrofits, public lighting, and municipal utilities. The guidance note discusses the following potential financing mechanisms that can be used by municipalities to finance EE measures: budget financing...

Improving Energy Efficiency in Buildings

Energy Sector Management Assistance Program
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Português
Relevância na Pesquisa
46.18%
About one-third of global energy is consumed in residential, public, and commercial buildings (collectively referred to as buildings), where it is used for space heating, cooling, ventilating, lighting, cooking, water heating, refrigerating, and operating electric and mechanical devices. Global energy use in buildings is expected to grow as cities in developing countries continue to modernize and per capita income levels continue to increase. Because of their high energy consumption, residential, public, and commercial buildings also offer unparalleled opportunities for energy savings. According to the International Energy Agency, buildings account for some 41 percent of global energy savings potential by 2035, compared with the industrial sector (24 percent) and the transport sector (21 percent). This guidance note outlines how cities can tap into a wide array of proven technologies, policies, and financing mechanisms to improve energy efficiency and capture cost-effective energy savings in buildings. It offers city leaders advice on how to get started in introducing energy efficiency measures...

Solar project description for Reedy Creek Utilities, Co., Inc. office building; Reedy Creek Utilities Co., Inc. office building

PRC Energy Analysis Company; United States -- Department of Energy. -- Office of Conservation and Solar Applications; International Business Machines Corporation -- Federal Systems Division; Mueller Associates; Ehrenkrantz Group
Fonte: Dept. of Energy, Office of Conservation and Solar Applications; [For sale by the National Technical Information Service]; Dept. of Energy, Office of Conservation and Solar Applications ( [Washington] ); [For sale by the National Technical Information Service] ( [Springfield, Va.] ) Publicador: Dept. of Energy, Office of Conservation and Solar Applications; [For sale by the National Technical Information Service]; Dept. of Energy, Office of Conservation and Solar Applications ( [Washington] ); [For sale by the National Technical Information Service] ( [Springfield, Va.] )
Tipo: Artigo de Revista Científica Formato: iv, 44 pages : illustrations ; 28 cm.
Publicado em //[1980] Português
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56.13%
National solar heating and cooling demonstration program.; National solar data program.; July 11, 1978.; (Statement of Responsibility) prepared for the Department of Energy, Office of Assistant Secretary for Conservation and Solar Applications, under contract number EG-77-C-01-2522, by PRC Energy Analysis Company, in cooperation with IBM Corporation, Federal Systems Division, Mueller Associates, Incorporated, the Ehrenkrantz Group.

Gis solution for energy & utilities

Almeida, Carla Alexandra Nascimento de
Fonte: Universidade de Lisboa Publicador: Universidade de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2015 Português
Relevância na Pesquisa
46.24%
Trabalho de projecto de mestrado, Engenharia Informática (Engenharia de Software), Universidade de Lisboa, Faculdade de Ciências, 2015; São cada vez mais evidentes os desafios que as empresas do setor energético enfrentam atualmente. Se por um lado a procura tende a aumentar, por outro são impostas normas e regulações relativamente às atividades de produção, transporte, distribuição, e comercialização. Neste contexto surgem as smart grids como um novo fator disruptivo, associadas ao conceito de redes inteligentes, que prometem revolucionar a forma como usamos a energia, passando as empresas de Energy & Utitlies a ter disponíveis novos volumes de informação outrora inacessíveis. Estas passam, então, a ter necessidade de investigar novas técnicas inovadoras e diferenciadoras de modo a ser possível conceber ferramentas capazes de transformar os dados recolhidos em conhecimento útil. A informação acerca da localização sempre se revelou uma mais-valia no setor energético, particularmente na gestão de ativos e no planeamento de infraestruturas. No entanto, com a smart grid, a informação geográfica ganha um novo relevo, uma vez que todos os dados gerados pela rede possuem uma componente espacial. A possibilidade de relacionar geograficamente objetos que...

City Energy Efficiency Assessments

Energy Sector Management Assistance Program
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Publications & Research :: ESMAP Paper; Publications & Research
Português
Relevância na Pesquisa
45.97%
For cities that want to take concrete actions on improving energy efficiency, it is essential to understand what, where, and how big the potential energy-saving opportunities are, what measures are needed to capture the savings and at what costs, what the implementation constraints are, and how priorities should be set given local capacity and resources. An energy efficiency assessment can provide the necessary clarity on these issues. Energy efficiency assessments can be done at different depths and with varying scopes, depending on the city's needs, capacity, and resources. The duration and cost of the assessment depends on the quality of existing data and the size and complexity of the sector. This guidance note provides an introduction to the objectives, scope, and outputs, as well as the basic steps and approaches of conducting the three types of energy efficiency assessments.

Implementing Energy Subsidy Reforms : Evidence from Developing Countries

Vagliasindi, Maria
Fonte: Washington, DC: World Bank Publicador: Washington, DC: World Bank
Tipo: Publications & Research :: Publication; Publications & Research :: Publication
Português
Relevância na Pesquisa
45.98%
Poorly implemented energy subsidies are economically costly to taxpayers and damage the environment through increased emissions of greenhouse gases and other air pollutants. Energy subsidies also create distortive price signals and result in higher energy consumption or production as well as barriers to entry for cleaner energy services. Subsidies to consumption, by lowering end-use prices, can encourage increased energy use and reduce incentives to conserve energy efficiently. Universal energy-price subsidies tend to be regressive because benefits are conditional upon the purchase of subsidized goods and increase with expenditure. This report selected a representative sample of case studies in 20 developing countries, based on a number of criteria, including the countries' level of development (and consumption) and energy dependency (distinguishing between net energy exporters and importers). The case studies have been selected on the hypothesis that energy dependence and per capita income appear to be the key drivers of subsidy reforms in developing countries. Of the two criteria...

Brazil : How Do the Peri-urban Poor Meet their Energy Needs - A Case Study of Caju Shantytown, Rio de Janeiro

World Bank
Fonte: Washington, DC Publicador: Washington, DC
Tipo: Publications & Research :: ESMAP Paper; Publications & Research
Português
Relevância na Pesquisa
46.35%
The phenomenon of poverty has traditionally been measured based on the individual's income. However, more recently, the debate over poverty has evolved beyond income or lack of it. The condition in which people have access to basic civil rights, such as an adequate energy supply, is nowadays considered an important marker of poverty. This study proposes to analyze energy poverty in the shantytowns of Rio de Janeiro. The authors aim is to suggest public policies that can, with support from electric utilities, contribute to improving the living conditions of the shantytown inhabitants. The study was carried out using both quantitative and qualitative data.

Energy Access and Productive Uses for the Urban Poor : Final Report on Ghana Scoping Study

The Energy and Resources Institute
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Publications & Research :: ESMAP Paper; Publications & Research
Português
Relevância na Pesquisa
45.97%
The aim of the scoping study was to gain an understanding of the productive activities slum dwellers engage in that rely on energy services and the potentials and challenges of slums in Ghana regarding access to modern energy services and income generation from productive activities. The objective of the ESMED-EAfUP (Energy Sector Management Assistance Program - ESMAP/SME Development - Energy Access for the Urban Poor) programme is 'to create and sustain a network of energy practitioners to support development of Micro, Small and Medium Enterprises (MSME) as users and providers of modern energy services for slum upgrading programs.'. Using ability to adopt safer and modern energy forms as a criterion in assessing the effective deployment of safer and modern energy forms, the study concluded that the high propensity to save is an opportunity for their deployment if they can be sensitized about the benefits of using modern energy forms, which many of the slum dwellers are not aware of. Most enterprise owners could also capitalize on the credit policies of the financial institutions they saved with to adopt the modern energy forms. Lack of education and limited awareness about the benefits of using clean...

Initiating the Bank's Peri-Urban/Rural and Renewable Energy Activities in Nigeria

World Bank
Fonte: Washington, DC Publicador: Washington, DC
Tipo: Publications & Research :: ESMAP Paper; Publications & Research
Português
Relevância na Pesquisa
45.97%
The workshop entitled, Initiating the Bank's Peri Urban / Rural and Renewable Energy Activities in Nigeria was divided in two parts. Part 1, Energizing rural energy transformation by : scaling up electricity access and renewable energy market development; and part 2, Creating demand and removing barriers to renewable energy market development. The workshop organizers placed great emphasis on promoting participation and dialog across Nigeria's energy sector. Delegates were major stakeholders in the rural electrification arena. This document lists the proceedings, and includes the presentations by participants of the overall workshop. The workshop concluded by identifying the following areas for action : accelerate the process of formulating Nigeria's overall vision for scaling up electricity access from renewable energy sources in underserved areas in a rapid and sustainable manner; identify key principles for framing the policy platform and institutional framework required for mounting a large-scale clean energy program; formulate a strategy for developing renewable and clean energy resources in a cost effective manner...

The Energy Efficient Cities Initiative Practitioners' Roundtable

Energy Sector Management Assistance Program
Fonte: World Bank, Washington, DC Publicador: World Bank, Washington, DC
Tipo: Economic & Sector Work :: Policy Note; Economic & Sector Work
Português
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45.97%
Cities represent a major contributor of greenhouse gas (GHG) emissions. According to the United Nations Population Fund,1 half of the world's population now lives in cities and is responsible for 75% of global energy use and GHG emissions. Since the world's population will continue to grow, and rapid urbanization will continue particularly in the developing world, tackling climate change issues in the urban context will be essential. In response to these challenges, the World Bank's Energy Sector Management Assistance Program (ESMAP), in cooperation with the Bank?s Finance Economics and Urban Department (FEU), has launched an Energy Efficient Cities Initiative, which is designed to help mainstream and scale-up sustainable energy and climate change mitigation actions and investments in the urban context. The first activity proposed under this Initiative is the Energy Efficient Cities Practitioners Roundtable, a facilitated discussion cohosted by ESMAP and FEU. The purpose of this event was to bring together client cities and partner organizations to investigate ongoing initiatives and programs to support cities' sustainable energy goals needs and develop an Energy Efficient Cities Action Plan that will outline a vision and subsequent actions to be taken under the Initiative. The event took place at the Washington DC offices of the World Bank...

Considerations for a sustainable hybrid mini-grid system: A case for Wanale village, Uganda

Kimera,Raymond; Okou,Richard; Sebitosi,Adoniya Ben; Awodele,Kehinde O
Fonte: Journal of Energy in Southern Africa Publicador: Journal of Energy in Southern Africa
Tipo: Artigo de Revista Científica Formato: text/html
Publicado em 01/01/2014 Português
Relevância na Pesquisa
45.93%
The extension of modern energy services to rural sub-Saharan Africa has continuously provided a challenge to energy utilities. The continued reliance on diesel generators for rural electrification is increasingly becoming unsustainable, due to a number of factors, among which includes their high fuel dependency, and the uncertainty surrounding the price and availability of fossil fuels. While the influx of renewable energy technologies has provided a means for providing off-grid electrification services, the intermittent nature of renewable resources poses a challenge, as energy generation does not always coincide with usage. Through a combination of renewable energy technologies, energy storage, and conventional diesel generation, a hybrid mini-grid system is able to achieve synergy in operation, hence providing a reliable means of extending electricity services to rural consumers. In this paper, a hybrid mini-grid system is proposed for the supply of electricity to a remote village in Uganda. Renewable energy resources are identified, an estimation of the projected village short-term electricity demand is modelled, and using HOMER software, a hybrid mini-grid system is designed, components sized, and the system optimized for efficient and reliable operation to meet the village demand at an affordable cost. A well designed and operated hybrid mini-grid system offers a viable tool for the electrification of even the remotest of areas