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Hans De Keulenaer

Ecofys - High primary energy factor jeopardizes renewable development - 1 views

  • Within the Energy Performance of Buildings Directive the Primary Energy Factor (PEF) is used when calculating the energy performance. The PEF accounts for the energy losses of electricity generation and transport when comparing electricity use with other types of energy use in the building. But a recent Ecofys study warns that PEFs are not an unambiguous scientific value. Edith Molenbroek, researcher at Ecofys said: “Calculation methods are not transparent, harmonised and consistent and are not always adjusted to higher shares of large-scale renewable electricity.”
Hans De Keulenaer

Zero Volt » Q&A: Renewable energy? - 1 views

shared by Hans De Keulenaer on 07 Dec 10 - No Cached
  • Leonardo Energy, Earth Justice, Earth First, and Fixing the Planet are all good resources and chocked full of information and like minded people willing to help and educate.
  • Leonardo Energy, Earth Justice, Earth First, and Fixing the Planet are all good resources and chocked full of information and like minded people willing to help and educate.
Hans De Keulenaer

Electric/hybrid cars breaking efficiency records! | Leonardo ENERGY - 1 views

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    This website is about both electric and hybrid cars. It shows that both of these inventions are breaking efficiency records and are saving consumers lots of money and also protecting our environment. It's a good source and may be a key part in proving how these inventions are now impacting our environments today and how it will keep impacting it in the future.
Hans De Keulenaer

Introduction to distributed generation | Leonardo ENERGY - www.sinzub.com - 0 views

  • Distributed generation may be fossil fuel based (mainly natural gas), but also RES based (e.g. solar cells, small hydro installations, wind turbines).
Hans De Keulenaer

Asociación Española de la Industria Solar Termoeléctrica - 0 views

  • Con el objetivo de proporcionar un conocimiento avanzado sobre las últimas tecnologías en materia de energía, CEDIC (Centro de Información del Cobre), impartirá una serie de cursos que podrán seguirse a través de www.leonardo-energy.org. El primero de los ciclos versará sobre tecnología solar termoeléctrica y consta de cinco conferencias dirigidas a profesionales de la energía. Las ponencias, que comenzarán a impartirse el 3 de marzo podrán seguirse en directo a través de http://www.leonardo-energy.org/csp-training-course-5-lessons, y permitirán a los participantes la identificación de oportunidades, de estrategias o el establecimiento de contactos fructíferos para su actividad. Las presentaciones y los videos de las conferencias quedarán colgados en dicha web una vez finalice cada ponencia. Así, se analizarán en primer término los principios generales de las tecnologías solares termoeléctricas para luego centrarse en cada una de las dos vertientes que pueden adoptar. Asimismo, se abordarán las herramientas que facilitan la gestión de dichas tecnologías y que están relacionadas con el almacenamiento y la hibridación. La última sesión estará dedicada al asesoramiento del recurso solar. El curso será impartido por Manuel Silva, Doctor en Ingeniería Industrial con 24 años de experiencia en la materia. Silva es profesor asociado de la Escuela Técnica Superior de Ingenieros de la Universidad de Sevilla. FUENTE: INSTITUTO EUROPEO DEL COBRE
Hans De Keulenaer

Environmental performance in low-carbon energy systems - 0 views

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    " Developing economic well-being and preserving a healthy environment are not opposed forces but do, on the contrary, have a primary relationship and require a similar life-cycle-thinking. Maximizing the efficiency of a product over its life cycle will minimize its total financial cost as well as the total environmental impact over its life cycle, according to a new report 'Evaluating environmental performance in low-carbon energy systems' by PE International for European Copper Institute. © Aania The report presents case studies which were developed to substantiate this life-cycle-thinking by delivering high level messages supporting decision making on the sustainable energy arena. The case studies provide results for several realistic - future and present - situations in regard to different scenarios and boundary conditions for energy systems. The aim is to define a common denominator that can be used as a starting point for further developments and discussions. To complement the decision-making landscape, future scenarios are also modelled - not as straight jacket by as a means to assess the influence of various trends or decisions. Choice of power grid mix - a case The case study 1, among the seven case studies, was constructed with the intention of assessing how the choice of power grid mix influences the environmental impact of producing electricity. Electric power can be produced from various renewable and non-renewable resources, and the technologies to harvest renewable resources are gaining momentum, together with the global pressure to increase their contribution to energy provision. In the EU targets have been set for 2020 to generate 20 percent of the total energy demand from renewable resources. National schemes have been set up to reach this overall goal, stricter for the more advanced and economically stable nations and laxer for the economically more disadvantaged ones. Although the target is very demanding, the potential benefits ar
Hans De Keulenaer

Voltage and current distortion (elearning course) | Leonardo ENERGY - 0 views

  • Leonardo ENERGY Academy continues its e-learning initiative with a comprehensive programme on power quality. The second course covers the subject of harmonics and interharmonics. The knowledge acquired during the course should be sufficient for: identification of the distortion nature distortion source identification disturbance assessment by means of measuring evaluation of technical effects of disturbance proposing remedial measures The course should take between 12 to 20 hours for participants with an electrical engineering background. Participants are expected to finish the course by 19 of March (19-03-2010).
Hans De Keulenaer

Intelligent E-Transportation Management | Leonardo ENERGY - 0 views

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    "This paper describes the performance of the network of a typical future residential concept area, as has been studied in the Intelligent E-Transportation Management project. Several scenarios have been elaborated by load flow simulations. The study investigated what level of introduction of electric vehicles, heat pumps, photovoltaic systems and micro- combined heat and power plants is feasible in this network. Possible overload situations are examined and the opportunities of demand side management for the power grid are investigated. In general load-flow simulations show that transformer overloads will occur when electric heat pumps and electric vehicles are introduced together in this specific grid. In that case extension of the grid or of the transformer capacity is necessary. Alternatively, demand side management can be applied successfully to mitigate the overload."
Hans De Keulenaer

Construction Management Positions » Blog Archive » Structured Wiring in Resid... - 0 views

  • A new trend in residential construction that is geared to meet the needs of future smart homes is the installation of structured wiring systems. The term structured wiring is used to describe wiring systems used ...
Hans De Keulenaer

Estimation of the energy losses of transformers at wind turbines | Leonardo ENERGY - 0 views

  • The lower bound of generation is NOT zero, as implied by the graph, but is actually negative when the windmill is not generating. The core is excited from the HV side, just like in a distribution system. When there is no generation, the transformer actually pulls power from the grid. For renewables, you should be using transformers with amorphous metal cores which cut no load losses by 70 percent.
Hans De Keulenaer

The maintenance manager's guide to circuit protection | Leonardo ENERGY - 0 views

  • In this guide, circuit protection is detailed as a way to ensure an installation is safe and functional. This document is concerned primarily with protection against the effects of over-currents and fault currents for property protection, but the improvements presented may also lead to secure people as an indirect benefit. There is a focus on circuit breakers as well as on issues that are likely to arise in circuit maintenance and it takes a systemic approach.
Hans De Keulenaer

Distribution transformer efficiency in a liberalised market | Leonardo ENERGY - 0 views

  • A widespread use of high efficiency transformers could save the world 100 TWh/year. Under normal conditions, purchasing high efficiency transformers is both economically and environmentally sound. In the liberalized European energy market however, the regulatory and financial framework obstructs utility companies from making long term investments like purchasing high efficient transformers. National regulators put pressure on utility companies to do cost cutting and do not compensate with sufficient incentives for energy efficiency. According to this paper, there is a heterogeneous treatment between generation on renewable energy and transformer efficiency. Yet the greenest kWh is still the one that is saved, even when it is compared to a kWh derived from a renewable source.
Hans De Keulenaer

White, green and black certificates: three interacting instruments | Leonardo ENERGY - 0 views

  • This paper presents three different types of certificates ('white' for energy savings, 'green' for renewable electricity, and 'black' for greenhouse gas reductions in the European Emission Trading Scheme). The current limited experiences with these instruments already allow to define some of the success factors for these new instruments. A synthesis of their current application presents how much energy is saved today due to these certificates, and how much green electricity is produced. A discussion on the methods for setting the targets, measuring the impacts on the market and the interaction between these different instruments concludes this paper, followed by a reminder of the proposal to create an international agency on global stewardship for climate change issues.
Hans De Keulenaer

Liberalization of electricity market scrutinised | Leonardo ENERGY - 0 views

  • Throughout the world, the deregulation of utilities like gas, railway, water and telephone is at the centre of many governments’ economic policy. The liberalisation process of electricity, however, is slower than anticipated. Both in Europe and North-America, for various reasons, a full-scale implementation of the liberalization of the market is being hindered. A lack of sufficient physical capacity to allow cross-border trade of electricity is only one of those reasons. In the long run, the prices of electricity can't be expected to go down. Or will they? A reflection based on the discussions at the World Forum on Energy Regulation, Rome, October 5-9, 2003.
Hans De Keulenaer

Impact of market liberalisation | Leonardo ENERGY - 0 views

  • Liberalization has improved the administrative efficiency of the electricity system, but what has been its impact on technical performance? Energy efficiency of the distribution system, its technical quality of supply and environmental performance are issues which where largely conspicuous in their absence in the debate, but maybe it is time to address them now. A discussion paper from Leonardo ENERGY.
Hans De Keulenaer

wattwatt - community for individuals interested in electrical energy efficiency - Heat ... - 0 views

  • The Leonardo ENERGY program has recently put together a How to Manual on Heat Pumps.
Hans De Keulenaer

ET - Elektrotechnik » Elektrische Leiter: Welche Alternativen zu Kupfer gibt es? - 0 views

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    "Die Auswahl von elektrischen Leiterstoffen ist sehr beschränkt. Obwohl Kupfer in letzter Zeit enorm teuer geworden ist, bestehen kaum Alternativen dazu. Aluminium ist ein Leichtmetall mit einer recht guten Leiterfähigkeit. Es erreicht Platz vier der am besten leitenden Metalle. In der Elektrotechnik lässt es sich aber nur sehr beschränkt anwenden, weil dafür die so genannte Stromdichte gesenkt werden und der Leiter selbst dicker ausfallen muss. Der Beitrag von Stefan Fassbinder zeigt, was es beim Einsatz von Leiterwerkstoffen sonst noch alles zu bedenken gilt. "
Hans De Keulenaer

When ICT & Electro-technology meet | Leonardo ENERGY - 0 views

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    "Once an electrical installation had been installed in a home in the past, that was it. So, when a domestic electrical installation was fitted, it was and in a many cases still is considered to be an unmodifiable fixture. In fact, it has always been quite difficult to make any changes to a classical electrical appliance once it is installed. Fortunately the arrival of integrated home systems means that such flexibility is now available to us (see: Definition of integrated home systems), even if the communications aspect (see: Increasing communication) is, admittedly, still in its infancy. By communications we mean internal and external home communications. The meeting of ICT technology and electro-technology in the home brings with it a wide range of new opportunities, both for the majority of homes and apartments as well as for the more specialist homes for the elderly whose mobility, for example, may be reduced. We went to find out more from FifthPlay, a daughter company of the Niko Group, totally dedicated to bringing together the worlds of ICT and electro-technology and to designing associated applications and services."
Hans De Keulenaer

Low Carbon Electricity Systems | Leonardo ENERGY - 0 views

  • This document is an overall report of the seminar “Electricity in the next decade”, the first in an annual series of events regarding “Low carbon electricity systems”. KEMA, ECI and Leonardo ENERGY are jointly organising these events. Next to the topics presented during the first event, a few additional topics have been added in order to create a white paper and a more complete picture on the theme “Electricity in the next decade”.
Hans De Keulenaer

US invests in Energy Frontier Research Centers | Leonardo ENERGY - 0 views

  • In August, U.S. Energy Secretary Steven Chu announced the delivery of $377 million in funding for 46 new Energy Frontier Research Centers. The centers will be hosted by universities, national laboratories, non-profit organizations, and private companies. The research domains that were chosen offer a good sampling of those technologies the US Department of Energy (DOE) sees as potentially important in the energy landscape of the future. The funded projects are focussed on: Improving the efficiency of photovoltaic systems; with particular projects dedicated to hybrid inorganic/organic PV cells and nanometre-sized PV cells Advanced nuclear techniques Carbon capture and geological storage (CCS) Hydrogen, including the production of hydrogen as well as hydrogen fuel cells Biomass, including energy-rich plants and the conversion of biomass into chemicals and fuels Energy storage systems Superconductivity (1 project)
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