The Global Community for Sustainable Energy Professionals
Hans De Keulenaer is programme manager ‘Electricity & Energy’ at the European Copper Institute (ECI), a non-profit organisation working towards the support and expansion of copper and copper alloys’ markets in Europe. His responsibilities at the ECI comprise strategic planning, market research, campaign development and programme management. Hans De Keulenaer obtained his Master degree in electrical engineering and MBA from the University of Louvain (Belgium). He has over 20 years of experience in running pan-European and global marketing campaigns for companies and international organisations in the industrial sector. His current interests are sustainable energy systems, e-learning, quality of supply, smart & age-adaptive building installations, energy regulation and the use of novel web-based technologies for B2B marketing.
Cables that are exposed to fire while being expected to retain their functionality and provide power to essential equ
In his report Searching for a Miracle, Richard Heinberg reviews 18 energy sources as candidates for our future energy
The Leonardo ENERGY team deeply regrets the loss of our friend and colleague Jonathan Manson who unexpectedly passed
In my organisation (European Copper Institute), there is increasing attention to recycling.
This paper presents the effects of voltage sags on domestic and office equipment and provides equipment sensitive cur
A Parliamentary proposal calls for all new buildings to be 'zero energy' by 2019, i.e.
Geographic diversification of wind farms can smooth out the fluctuations in wind power generation and reduce the asso
Cables are important components in the transportation and distribution of electricity.
The evolutionary path of the U.S. electricity grid is at an historical crossroad.
Paul Hines, Jay Apt, and Sarosh Talukdar , Carnegie Mellon Electricity Industry Center
Is this fine by the Flemish government appropriate?
The use of electronic loads is increasing very fast.
The Council of European Energy Regulators (CEER) just published its 4th Benchmarking Report on the Quality of Electri
On Lake Victoria in Kenya OSRAM has launched a unique project for producing light away from a permanent power supply.
An updated version of the RETScreen Clean Energy Project Analysis Software was recently released.
In partnership with VEI
By T Loix, KULeuven - ESAT/ELECTA
Variability of weather and climate represents a significant source of risk to the electric power industry. Weather influences power trading, fuel acquisition, load forecasting, systems planning, hazard planning and a range of related tasks within the industry. Lead-times for weather and climate information range from minutes for rapidly changing hazard conditions and wind-power resources to decades for infrastructure planning. Demands on forecast accuracy are equally daunting. A half degree Fahrenheit can mean the difference between normal operation and catastrophic loss of power distribution and transmission due to ice-laden power lines. Similarly, a 1% error in daily wind speed estimates for a 100MW wind generation facility can lead to losses approaching $12,000,000 over the plant lifetime. Current societal calls for changes in fuel sources will bring additional weather and climate related risks for the electric power industry, particularly for use of biofuels, wind, hydropower, and solar. I will provide an overview of the state of the art in mesoscale weather forecasting and regional climate modeling with applications to the electric power industry, including current efforts to reduce limits to predictability. For short-term prediction I will use wind speed forecasting as an example, and for the longer term I will discuss potential impacts of climate change.
The use of mobile telephony is growing very fast in Africa.
Tools for Assessment of Bidding
into Electricity Auctions
In many restructured electricity markets, transactions occur through frequently-repeated uniform-price auctions. Such market mechanisms are justified, in part, by theoretical models that suggest these auctions facilitate efficient dispatch and send “correct” signals for future investment. However, empirical analyses of offers into electricity spot auctions have uncovered evidence that actual offers by some market players can deviate significantly from theoretical models of profit-maximising offers. This leads to inefficiencies in both balancing and bilateral markets. This project developed a computational tool for analysing offers into auctions.
The tool has two major applications. First, market monitors can employ it to assess the competitiveness and efficiency of offers by comparing the actual offer of a market participant to a hypothetical perfectly competitive offer and to an ex post profit maximising offer. Such analysis can be useful to market monitors who seek to evaluate the behavior of a particular market participant. Second, the tool can assist market participants, especially the smaller ones, in the formulation of offers in the face of the strategic complexity facing them. The tool and associated graphical user interface allows the ex post profit maximising offer for a firm to be constructed on the basis of information about the aggregate offers of other market participants, the firm’s own cost function, and zonal transmission constraints. This project brings together work from both the economics and electrical engineering literatures. The tool operationalises some of the recent theoretical developments in auction theory in a prototype tool that is available in the public domain to analyse offers. Moreover, the tool incorporates the effects of transmission constraints, providing a unique combination of economic and engineering analyses that is not available elsewhere. Finally, we sought to make the tool “user friendly” so an analyst or market participant can exploit the insights of recent academic analysis in the “real-time” time horizon that such analysts typically make decisions.
This status report examines the support schemes in place across Europe.
In partnership with VEI
By T Loix, KULeuven - ESAT/ELECTA
In Partnership with the Florence School of Regulation.
Smart metering is a crucial factor for the efficient functioning of the Internal Electricity Market, as well as for the successful implementation of European Union policies related to energy efficiency, renewable energy and security of supply.
Smart metering will benefit consumers, suppliers, metering companies, distribution network operators and the public interest, creating new business opportunities. However, for these benefits to be achieved, we need changes in policy (e.g. demand response) and new regulatory approaches (including tariffs, ancillary service markets, incentives for new investments, etc.). The seminar discusses how to speed-up introduction of smart metering and how to maximize benefits.
In partnership with VEI
By T Loix, KULeuven - ESAT/ELECTA
One of the most significant engineering accomplishments of the 20th century was the electrification of our modern world. While progress has been made in making people aware of the hazards of electricity, approximately five arc flash incidents still occur each day in the United States causing serious injury and/or fatality.
Arcing faults can cause serious injuries or death through a number of energy transfer mechanisms such as heat, pressure, sound, shrapnel and electromagnetic radiation. Accurately estimating the available thermal energy is one of the most critical aspects of assessing the severity of the arc flash hazard. Over the past few years, a number of researchers have worked to quantify the thermal energy present during an arc flash exposure. This presentation will address various aspects of thermal energy exposures, discussing in detail the three categories of incident energy calculations that have been developed: theory based models, statistically developed models, and semi-empirically derived models. Because of the limitations and discrepancies observed using the different techniques, no standard approach has been agreed upon by the scientific community. One of the objectives of this research was to develop a new set of semi-empirically derived incident energy equations for low- and medium-voltage systems for open air (applicable to medium voltage distribution systems) and arc-in-box (applicable to industrial and commercial power systems) exposures.
This research will help advance the electrical safety culture from a number of perspectives and has been performed as an integral part of the IEEE/NFPA Arc Flash Phenomena Collaborative Research Project and will provide the direction for future arc testing and modeling.
Lastly, this research has provided the motivation and pedagogical framework to develop an electrical safety training program for young engineering students and technical personnel. Education is the crucial factor; helping people to better understand the hazards of electricity, thereby empowering them to take the necessary precautions to work safely.
This paper presents an exploratory study of the possible physical impacts of climate change on the electric power sys
John Scott
The 2008 Hunter Memorial Lecture, Birmingham, UK.
09-Dec-2008
Jorge Vasconcelos, Florence School of Regulation
RETScreen International is a unique decision support tool developed with the contribution of numerous experts from go
Ali Kazemi, Schweitzer Engineering Laboratories, Inc.
A.F. Picanço, C de Salles, M.L.B. Martinez, P.C. Rosa, H.R.P.M. de Oliveira
A new training package on “Sustainable Energy Regulation and Policymaking for Africa” is now freely available via the
This introductory webinar explains how a heat pump system works, what is the most suitable solution in your case and, if it makes sense, how to start planning and building your installation.
After a briefing presentation, a case study will be presented using the RETScreen analysis software.
The Leonardo ENERGY initiative is building a slide library for energy educators.
A recent report from IEA explores how variable renewables can be integrated on a large-scale into the electricity sys
Marija Ilic
Professor, Electrical and Computer Engineering, and Engineering and Public Policy
Carnegie Mellon University
Energy and the environment are once again on everyone’s mind. The primary energy producers have entered a race for making the traditional energy resources cleaner and safer, as well as for developing scientific principles in support of entirely novel energy resources. At the same time, we do not have the infrastructure to transport the energy effectively. The infrastructure for converting our primary energy resources and delivering energy in the form required by the end users was designed with qualitatively different objectives from the functions of today; it is aging and far from what it should and could become.
This talk concerns the basic challenge of transforming today’s passive electric power grids into active enablers of efficient and reliable utilisation of emerging unconventional energy resources. Our conservative estimate for the electric energy system alone is that a 25% increase in efficiency can be obtained today by such transformation without degrading reliability of services. However, while much of the hardware exists, meeting this goal still poses a fundamental challenge to the current state-of-the-art systems and network sciences. Any large-scale penetration of ntermittent resources is practically impossible without equally large-scale sensing, actuation and on-line data-assisted decision making by various industry participants, ranging from Independent System Operators (ISOs), Load Service Entities (LSEs), power producers/aggregators, to end users. In short, these resources cannot succeed without significant improvements to the control of the infrastructure.
We pose the problem of future electric energy systems as the problem of network design, monitoring, and control for enabling implementation of multiple objectives by the actors embedded at various network layers. Typical tradeoffs of interest are efficiency, cost, emissions, network congestion, profits, differentiated reliability, long-term sustainable services, etc. We present our new cyber-physical modeling framework as a possible way to represent future electric energy systems. The emphasis is on model structure needed for effective deployment of distributed sensing and decision tools. Finally, we describe the fundamental role of fast-switched electric network control for shaping effective system energy dynamics. We argue that while on the average no real work is done, very fast distributed switching of stored energy in wires (inductors and capacitors) enables stable delivery of energy which would otherwise be impossible. Such active wire control may become key to balancing highly stochastic supply according to desired quality of service.
IEEP and its partner, the Natural Resources Defense Council (NRDC) have published a report on “Climate Change and
We are carrying out a major pan-European project to identify a number of issues relating to current levels of Power Q
Wind turbines are a common source of electrical power generation in rural sites around the world.
The paper deals with the general analysis of one part of the electromagnetic compatibility (EMC ) problem — the elect
Measurement investigations have been carried out for commutator dc motor with internal asymmetries.
There are many problems in practical diagnostics of high-power, quirrel-cage induction machines, operated in industri
A great deal of work is being done on the improvement of control through simulation of the electric drives used for v
This paper presents a model based mathematical equations for control of torque and speed of a three-phase indirect ve
Sensitive equipment and non-linear loads are now more common in both the industrial/commercial sectors and the domest
In recent years, the detailed modelling of power electronic devices and their behaviours on various system conditions
A HV/MV transformer supplies a few power lines of known parameters and loads.
The problem of voltage sags and Swells and its severe impact on sensitive loads is well known.
Digital simulation is a powerful mean to predict the voltage dip performance of a power network.
This paper introduces an alternative method for voltage sag source location based on voltage information only.
This paper presents a hybrid on-line UPS system (H-UPS).
This paper demonstrates the results of implementation and verification of an already existing algorithm that allows f
Interharmonics are voltages or currents with a frequency that is a non-integral multiple of the fundamental supply fr
In this webinar, the RETScreen International Clean Energy Project Analysis Software will be introduced.
RETScreen is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. The software, provided free of charge, can be used worldwide to evaluate the energy production and savings, lifecycle costs, emission reductions, financial viability and risk for various types of energy efficient and renewable energy technologies (RETs). The software also includes product, cost and climate databases, and a detailed online user manual. Other tools include: a case study based college/university-level training course and an engineering electronic textbook.
The webinar includes an introduction to the RETScreen software, a demonstration and a Q&A session.
Thanks to Belen Galego from CSPToday for pointing us to this ne
Would you please share with us your opion of what impact the new energy conservation program requirements (10 CFR Par
Jay Apt and Aimee Curtright
The implementation of capacitor reactive power compensation in the Lubin Mine has produced the expected technical and
By Sompop Pattanariyankool and Lester B. Lave
By Sven De Breucker et al
By John A. “Skip” Laitner and Vanessa McKinney
The SEEDT project, a cooperation between energy agencies, institutes, electrical utilities, transformer manufacturers
Because gas and fuel oil price raise, coal is now again a competitive fuel.
The Maldivian’s islands might be the first to disappear because of global warming.
Emissions of nitrogen oxides (NOx) and sulphur dioxide (SO2) from large combustion plants (LCP) could have been consi
This paper attempts to validate the performance of a power injection control block for Photovoltaic Generation System
The mathematical model of dc motor was created.
Faults in the power system are major cause of voltage sag.
With the growing use of inverters in distributed generation, the problem of injected harmonics becomes critical.
The paper deals with the possibility of employing the Custom Power Static Series Compensator (SSC), whose primary aim
Problems on inverter motor drives such as bearing currents are introduced due to common mode voltages.
The electricity is a basic need for functioning of modern society.
Klaus-Dieter Dettmann, Steffen Schostan, Detlef Schulz
The paper deals with the general analysis of one part of the electromagnetic compatibility (EMC) problem - the electr
Power variation of a customer load can disturb other loads in distribution systems and compensators for such loads ar
Karolien Verhaegen, Leonardo Meeus, Bram Delvaux and Ronnie Belmans
This webinar presents a case study of a residential PV system.
Main design and installation issues will be reviewed. Particular attention will be paid to the design process with reference to the sizing of the photovoltaic system components, the installation and the PV system's connection to the grid. Information on the system characteristics, project cost breakdown and performance characteristics will be given.
Decentralised production means greater stability problems for the electricity system.
In this webinar, the recent addition of the energy efficiency modules to the RETScreen International Clean Energy Project Analysis Software will be introduced.
RETScreen is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. The software, provided free of charge, can be used worldwide to evaluate the energy production and savings, lifecycle costs, emission reductions, financial viability and risk for various types of energy efficient and renewable energy technologies (RETs). The software also includes product, cost and climate databases, and a detailed online user manual. Other tools include: a case study based college/university-level training course and an engineering electronic textbook.
The webinar includes an introduction to the RETScreen energy efficiency modules, a demonstration and a Q&A session.
In this webinar, the RETScreen International Clean Energy Project Analysis Software will be introduced.
RETScreen is a unique decision support tool developed with the contribution of numerous experts from government, industry, and academia. The software, provided free of charge, can be used worldwide to evaluate the energy production and savings, lifecycle costs, emission reductions, financial viability and risk for various types of energy efficient and renewable energy technologies (RETs). The software also includes product, cost and climate databases, and a detailed online user manual. Other tools include: a case study based college/university-level training course and an engineering electronic textbook.
The webinar includes an introduction to the RETScreen software, a demonstration and a Q&A session.
This discussion webinar takes place on Friday, March 21th, from 14h30 to 15h30.
Content
Discussion webinar of Friday, March 14th, from 14h30 to 15h30.
Content
This discussion webinar takes place on Friday, March 7th, from 14h30 to 15h30.
Content
This page is a live document to support the discussion webinar on the above topic before and after the event.
Does energy efficiency come at the cost of lower reliability?
Summary:
The source file of the PQ Tutorial free to use and modify for users of the media room.
The Belgian site being studied in this paper is connected to the public transmission grid (380 kV) by a High Voltage
By Mark Stephens, EPRI
Power Quality in Internet Data Centers
In bioenergy, it is often difficult to see the wood for the trees. The many articles about truths and myths do not really help. Meanwhile, biofuels are currently produced in volumes where they start to make a real contribution to energy security.
An ethanol boom in the USA has led to the production of 16 million cubic meters, primarily based on corn. Brazil has a longer tradition and currently produces 15 million cubic meters of ethanol, using sugarcane. In Europe, Germany is leading with a 2 million m3 production of biodiesel in 2005. Production cost for bioethanol has come down to 0.15 - 0.18 euro/liter (with one liter of ethanol equivalent to 0.67 l of gasoline in terms of energy content).
Are biofuels sustainable?
Well, they are definitely not energy or CO2 neutral. The ethanol production process is energy intensive, consuming almost as much energy as it produces. Depending on the carbon emissions of energy used in production, the net CO2 effect can be a fine balance, rising a lot of debate. B
A power quality case study
By Michiel Van Lumig, Laborelec
As the fifth in a series of tutorials on the power system, Leonardo ENERGY introduces its minute lecture on voltage a
To counterbalance unexpected fluctuations in electricity production or consumption.What if users consume more electri
Normally, yet another new web community on energy would not be news, but here's one from an unexpected angle.
Take Leonardo's new energy quiz, contributed by Josep Joan Berenguer from Spain.
A new answer to the question 'is it safe' in this 3 minute video, shot very nicely.
This is the first in a series of Application Notes on transient overvoltages and transient currents in AC power syste
This blog was started in July 2005 with a few humble posts.
A number of economic case studies on the application of energy efficiency measures in an industrial environment:
In 2001, EPRI estimated that poor power quality costs the US economy between $119 and 188 B annually
As the sixth report in its 'Building America Best Practice Series', the US Department of Energy published a guide on
The Euro WhiteCert Project supports the conceptual and technical development of tradable white certificates systems c
The Oil Drum offers a comprehensive overview with lots of ideas for local governments on best practice projects.
The elusive promise of hydrogen fuel cells seems to be always '10 years ahead', but via Independent.ie, we learn what
There is a strong relationship between the use of copper, as the best electrical conductor, and the reduction of carb
In several European countries, the liberalisation process has progressed at varying speeds.
The International Energy Agency (IEA) has just published its 2007 energy review on Germany.
How much electricity is used in European homes, offices, industry and transport?
In Japan about 16 million units of distribution transformers are in service.
In order to avoid nuisance tripping, just avoid to connect this useless, "superfluous" green-yellow wire!
Electricity theft is not only a safety hazard, but also leads to excessive consumption, as well as hampering developm
Recognising the very large, growing number of slum residents lacking legal, safe and affordable access to electricity
Last Thursday, April 26, Colombia's electricity system collapsed, leaving the nation 'in the dark'.
Energy units range from the very small to the very large, and different industries/countries measure energy in differ
Stories mushroom of individuals and organisations offsetting their carbon emissions by purchasing credits.
Steep voltage changes caused by IGBT frequency inverters may cause overvoltage problems in induction motors.
The Photovoltaic Power Systems Programme is a collaborative R&D Agreement, established within the International E
This Application Note illustrates the use and advantages of dielectric heating, which as the name implies, is used fo
Following an enquiry from PowerGlobe,below is an alphabetical list of (almost) open-source
Since the European Council meeting last week, we now have a 20% target by 2020, or actually 3 targets: 20% reduction
Our sun potentially offers a huge reservoir of clean, free energy.
During a very interesting webinar presentation last month, Mark Lively showed how market can contribute to improve op
This report has explored the issue of voltage quality regulation.
This Application Note describes the technology and applications of infrared heating.
Since 1987, the Energy Technology Data Exchange has provided access to a wide range of references on energy technolog
Using the annualisation method, we can easily derive some figures for the capital component in the cost of electricit
Evaluating investment decisions in sustainable energy typically requires a comparison between initial capital cost wi
Filling up at the petrol station will cost around 50 €, and loads about 450 kWh of energy into the tank.
In a recent speech, Commissioner Andris Piebalgs briefed the EPP on his energy package.
A great deal is spoken and written about energy efficiency. Occasionally something even gets done.
The long-term objective of fusion research is to harness the nuclear energy provided by the fusion of light atoms to
Over the past few years, there have been increasing reports of organisations going 'carbon neutral' and schemes are m
Another good case from our US colleagues showing high efficiency facilitates compact, high speed, low noise or low we
At one of the USA's largest brass mills, when a 50-hp (or smaller) motor fails, it's replaced with NEMA Premium.
A combination of a sound motor replace/repair policy along with a sophisticated monitoring system have contributed to
A world leader in photography, Kodak is also a leader in adoption of NEMA Premium motors.
UNDP's flagship energy publication, this publication reflects the current thinking on the social, economic, environme
This introductory level quiz tests basic knowledge on power quality in 10 questions.
Johan Driesen (S’93–M’97) graduated as an M.Sc. in Elec− trical Engineering and received the Ph.D.
Pascal Lenormand, born 1975, is a generalist engineer working both at AERE, a consulting company specialized in energ
The European Commission's comprehensive energy and climate change package was issued today.
In this Eurobarometer (Energy Technologies: Knowledge Perception Measures), almost 25,000 Europeans in the 25 member
Replacing aluminium with copper in the rotor of an induction motor can increase efficiency by up to 5%.
Below is a list of (free of charge) forums that exist for interaction among energy professionals that you may find us
Leonardo ENERGY webinars are free of charge but prior registration is required.
2006 has been a spectacular year for energy. Hereby Leonardo ENERGY's list of 10 highlights.
Developments in semi-conductor technology are expected to continue to lead to the doubling of the power and complexit
Thank you for your interest to join Leonardo ENERGY's electronic mailing list.
Besides destruction, the lifetime of a transformer is determined by its highest temperature (so-called hot-spot tempe
In partnership with the PHP, a new stream of 'Frequently Asked Que
Buildings are a composition of various materials and components, and have multiple edges, overlaps, joints, ...
Airtightness is essential for an efficient and rational ventilation.
Ventilation guarantees a sufficient air supply for users and combustion equipment, maintains inside air quality and r
For passive houses, the installed power may not exceed 10 W per square meter (heating load).
In Europe, there is a tendency to impose increasing energy performance for buildings.
A passive house has an annual demand of 15 kWh/m2 or less for space heating.
The concept 'low energy house' is not as strictly defined.
Currently there are already a couple of thousand passive houses across the Europe, especially in Germany (more than 3
As the use has shown, the passive house is not much more expensive then conventional house.
Passive houses have heat losses that are so small that no conventional heating system is needed.
By Hans De Keulenaer & Rob van Gerwen
The Southern African Power Quality Initiative is a regional initiative to understand, formulate,
Date: February 6, 2007
Time: 15h00 - 16h00, Europe Standard Time
Date: Tuesday, January 25, 2007
Time: 15h00 - 16h00, Europe Standard Time (GMT +01:00, Berlin)
The purpose of this report is to show the influence of fluctuating loads and energy price on the economic optimum for
When we refer to microgeneration, we usually mean kilo and megageneration, as opposed to giga-generation.
This paper, presentation at EEMODS 05 by R Kimmich at alii, describes the performance of a range of induction motors
Lower Materials Cost + Smaller Frame Sizes = Double-Digit Savings
To put high-voltage cables underground is expensive, but can produce many benefits.
In 1936, Portugal had 22,683 radio's, 22,062 electric irons, about 5,000 electric fans, 2,250 electric heaters, 1,820
Safety is as much a cultural as a technical issue
Courtesy Elektrotechnika (Hungary)
Courtesy Elektrotechnika (Hungary)
Courtesy Elektrotechnika (Hungary)
Courtesy Elektrotechnika (Hungary)
A live transformer fire in Moscow's streets - a matter of being in the right place at the right time, with a camera.
Yesterday, Saturday night, millions of Europeans in 8 countries were without electricity, as a result of a power prob
A microfire, probably caused by a bad contact, started in a power socket serving a washing machine in Germany.
Houses with very low energy demand can be readily constructed today, reducing the need for heating energy by up to a
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
Together with a Hungarian transportation system specialist, Siemens is equipping all the traffic lights of Budapest w
The most important characteristics are listed in the table below:
Yes, there are. Copper has excellent characteristics that make it the conductor of choice in electrical equipment.
In homes and offices, copper is used for practical reasons. The connection terminals, i.e.
For overhead lines, the weight of the cables is the deciding factor, so mostly aluminium is used.
Not exactly. The resistivity of aluminium is 65% higher than that of copper.
Yes. Nearly all materials conduct electricity to a certain degree.
The main reason to use copper is its excellent electrical conductivity.
This 1.6 MVA transformer, with an amorphous iron core, was produced in 1998 for use in an engine plant in Waterford,
This study analyses the auctions organised by power exchanges in Europe.
The establishment of a sustainable energy future is one of the most pressing tasks of mankind.
Date: December 5, 2006
Time: 15h00 - 16h00 (Europe Daylight Time)
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
Close to a million electricians work in Europe for 175,000 companies to keep the lights on and the skies clean.
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
Date: December 14, 2006
Time: 15h00 - 16h00 (Europe Daylight Time)
Speaker: Hans De Keulenaer
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
Eight years of data on current load, forecast load, capacity and imports for 5 US market areas.
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
This picture is offered courtesy Future Energy Solutions.
The Gulf states are preparing for the post oil boom era.
In the future, coal-fired power plants could operate with hardly any pollution emissions.
Date: Nov 23
Time: 15h00 - 16h00 (Europe Daylight Time)
Speaker: Denis Finck, Socomec UPS
This picture was taken by Bruno Calamia, a Swiss inspector of electrical installations with a habit of taking a digit
We commented on tree offsets on Sustainable Energy Blog before.
There are 2 billion people without access to electricity, but for villages located near to transmission lines, there
The Law "Engagement national pour le Logement" was passed on July 13, 2006.
The Schneider library includes over 100 Technical Publications, allowing a better understanding of installations, ele
Date: October 20, 15h00 - 1600
VWEW's 'Lernsequenzen' (in German) [1], gives a few typical energy benchmarks, allowing to develop an intuitive feeli
VWEW's 'Lernsequenzen' (in German) [1], gives a few typical power benchmarks, allowing to develop an intuitive feelin
Passive-On is a research and dissemination project funded within the Intelligent Energy
This part of the WindPower site is a data base of multimedia materials related to wind energy.
Power supply systems are becoming more powerful, which can lead to electromagnetic interference.
In this webcast, David Chapman from CDA UK will present solutions for managing transformers in the presence of large
Transformers stand in a concrete cubicle and hum. This is usually all that is perceived of them.
Distribution transformer used for electricity supply of the high-speed railway (Thalys line Brussels - Cologne).
Lack of protection against direct contact from a tourist attraction in Belgium (fortunately not one with many visitor
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This new minute lecture introduces the concept of the 'big 6' environmental impact categories, i.e.
In a dozen screens, this minute lecture introduces the concept of total cost of ownership for distribution transforme
This new minute lecture gives an introduction to photovoltaic (PV) systems for residential use, providing an answer t
A reading guide to keep in mind when reading life-cycle impact assessments (LCA).
An overview of life-cycle assessments for electricity-using products (see aslso the reading guide to the codes):
Date: July 4, 2006
Time: 14h00 - 15h00 European Standard Time
Increasing efficiency of rural transformers can produce significant environmental benefits.
Increasing efficiency of industrial transformers can produce significant environmental benefits.
Below is an overview of the Leonardo Power Quality Guide, which currently consists of over 50 Application Notes.
Date: June 28, 2006
Time: 13h00 Europe Standard Time
Covering 10 themes, 37 Leonardo ENERGY webcasts currently provide extensive training on sustainable energy subjects.
Courtesy Deloitte & Touche LLP, an electricity map of UK, showing major power stations (>500 MW) and transmiss
There is a large difference between the cost of generating electricity and the
The interdependency of the power grid and its ICT control infrastructure
Your mission: keep emissions flat to avoid significant global warming by the end of this century.
Continuing our series on unique power stations crossing new frontiers, the International Space Station is powered by
According to Guiness World Records, Japan's Kashiwazaki nuclear plant, with 7 operating units and total capacity of 8
In this minute lecture, the main cost components of electricity are presented, demonstrating large variations in elec
Following up on a post in theWatt 'What if everything was priced in barrels?', and equally to be taken with a pinch o
Since 1967, the La Rance tidal power plant, near Mont Saint Michel, generated annually 600 million kWh using its 24 t
The Conference Board of Canada published last month a briefing paper "Sustainability and Energy Security - Wrestling
The world's largest wind farms are 2 facilities in Denmark of 160 MW each (Horns Rev and Nysted).
The world's largest concentrated solar power plant has been in operation for 2 decades in the California Mojave deser
Roberto Chouhy Leborgne, Gabriel Olguin, Jose M. Carvalho Filho, Math H. J. Bollen
A new paper from KULeuven gives an overview of the regulations in 6 European countries on periodic inspection of elec
By G Desmet et al
S. Horton, N.G. van Luijk
Hossein Mokhtari, Abolfazl Zebardast, Mostafa Parniani
In a globalised market, effective promotion of energy efficient products requires alignment of energy performance sta
Challenging climate change caused by carbon emissions is such a many-sided problem, involving many actors from all ov
Jordi Cusido, Javier Rosero, Emiliano Aldabas, Juan Antonio Ortega, Luis Romeral
A report analysing the energy implications from the UN Millennium Development Goals is released now.
Via theWatt, an original post putting energy prices a bit in perspective.
SEAL's 14th briefing paper explores the question 'Can electricity save energy?'.
Lucian Asiminoaei, Steffan Hansen, Frede Blaabjerg
Alex McEachern
Six-pulse rectifiers, five centuries ago?
The two reports may not be recent, but together, they present a very detailed case study on efficiency in DC railway
Via theWatt, we learn about the ecological debt day calendar from the New Economics Foundation.
International Journal of Emerging Electric Power Systems1 highlights the research and development efforts in new tech
In this article, originally published by Energie-Fakten, Eckhard Schulz discusses the current contribution and furthe
This paper describes the benefits from a policy on electrical energy efficiency, and suggests policies and technologi
This paper describes the benefits from a policy on electrical energy efficiency, and suggests policies and technologi
A new report by UKERC defines the cost of intermittency of wind power in the UK electricity system for penetration le
Energy is not only about quantity. Its quality is equally important.
The US Gridwise initiative seeks to link utilities with electricity users through a high speed communications network
A lot of grey literature exists on the employment effects of renewable energy policy, see a previous post for example
According to the Ernst & Young 'Renewable Energy Country Attractiveness Index', the five most attractive countrie
A SWOT analysis by the KULeuven (Belgium) On the grid, an instantaneous balance between electricity production and hi
Difficult to integrate, as shows the example of Belgium
UPS today are increasingly being used when organisations need protection from a variety of power disturbances.
The 5th SESSA Conference in Madrid last May focussed on long-term policy issues for a sustainable energy system in Eu
This paper was written 2 years ago at the beginning of the rise of commodity prices, and estimated what would be the
The efficiency of electrical motors can be increased significantly by using additional materials (Aluminium, Copper,
The concept of personal carbon credits has been proposed in 1996 by Dr David Fleming.
IEA has published a fact sheet 'Renewables in Global Energy Supply' which clarifies the challenges ahead.
Harnessing 20% of the US offshore wave energy potential at 50% efficiency could make a contribution to the US electri
An update to the milestone 2000 WEA by UNDP, taking into account developments since it was finalised in late 1999.
The German engineering association VDE produced 3 scenario's [1] for
The Conference Board of Canada just published its report on International Experience with Implementing Wind Energy (t
Date: March 31, 14h00 GMT+1
Duration: 1 hour
The CEER has issued its 2005 benchmarking report on quality of
During the last decades, wind power has known an immense growth over the world, and particularly in Europe.
Today, land is used for living, working, recreation and most importantly, food production.
Date: February 10, 14h00 GMT+1
Duration: 1 hour
A study from CE Delft "Biofuels under development" concludes that some of the most modern technologies to extract bio
The European Commission's Website on the EuP Directive and its implementation.
Referring to the web event on this subject dd Feb 24, you can download here the thesis which has been published out of this project.
A basic introduction to appliance labelling and efficiency.
A minute lecture explaining how to become an MCP Endorser.
This presentation gives you a short introduction to the Motor Challenge Programme (MCP).
Leonardo ENERGY minute briefing in 12 screens on the status of copper rotor motor technology.
The main advantage of using copper for the rotor of an induction motor is either cost reduction, or efficiency improv
Practical guidance on how to choose the dimensions of the neutral conductor in an installation with a high percentage
In this Eurobarometer report, released January 24, almost half of citizens surveyed expressed a preference for the de
In this Eurobarometer report, released January 24, almost half of citizens surveyed expressed a preference for the de
By J.F.G. Cobben, Continuon and University of Technology, Eindhoven & J.F.L.
Date: February 16, 2006 - 14h00 Europe Standard time
Duration: 1 hour
This program calculates cable size taking account of type of cable, installation method, circuit length, overload pro
On April 2004, ECI, in conjunction with Fraunhofer, KULeuven and University of Coimbra, organised an event to present
The 4th and so far latest workshop on distribution transformer efficiency has been organised in October 2004 in Czest
In Treviso in September 2002, a milestone workshop on distribution transformer efficiency was held, summarising the world's available evidence in this area, The workshop was organised under the patronage of European Commision - JRC, International Energy Agency and COTREL
On November 2000, in Rome, a follow-up workshop has been organised to review progress in the context of market libera
In September 1999, to review the findings of the THERMIE project The scope for energy savings in the EU from energy-e
Whatever the reader’s view, energy technology is about making choices, and about allocating resources to these choice
Efficiency of induction motors is very much debated these days.
High efficiency motor systems produce substantial economic and environmental benefits, and can contribute significant
This report, on the 'Scope for Energy Saving in the EU through the Use of Energy-Efficient Distribution Transformers'
Using combined heat & power in the home is an emerging energy technology that can make a big contribution, since
The FEEDS position paper on electrical safety was first presented at the June 4, 2004 general assembly of FISUEL.
The cost of PQ problems like outages, voltage dips, or harmonics to the world’s economy is rising.
The cost of PQ problems like outages, voltage dips, or harmonics to the world’s economy is rising.
Cables for a safety installation should continue to function in case of a fire incident.
By Pieter Vermeyen, Benoit Dome, Jonathan Manson
Further to yesterday's post, the 'buried sunshine' article calculated the efficiency of 5 chains to convert 1 kJ of i
Over recent years, harmonics have become a serious problem in many industrial and commercial installations.
In this reference article, Jeffrey S Dukes calculates that the amount of fossil fuel consumed in 1998 required 44 Eg
A recent report by KEMA Consulting for Eurelectric reviews electricity prices in Europe.
Arjen G. Jongepier, Walter T.J. Hulshorst, Gabriël A. Bloemhof, KEMA, The Netherlands
Miklós Horváth, József Borka, Power Electronics Department, Computer and Automation Research Institute, HAS,
Peter G.V Axelberg, Unipower AB, Sweden
Bora ALBOYACI, Nuran YORUKEREN, Hasan Basri CET
The ChristophorusHaus is a 2100 m2 multifunctional building located in Austria, and is constructed following the pass
Marcel Didden1, Kurt Stockman2, William D’haeseleer3, Ronnie Belmans3
Janusz MINDYKOWSKI, Mariusz SZWEDA, Tomasz TARASIUK, Gdynia Maritime University, Poland
Tosak Thasananutariya 1, Somchai Chatratana 2, Mark McGranaghan 3, 1) Metropolitan Electricity Authority (MEA
Philip Keebler, Kermit Phipps, Bill Howe, EPRI Solutions, United States
LPQI is pleased to introduce its 26th note in the power quality application guide.
A report by DPG reviews 15 years of climate policy in Germany (1990-2005) and looks 15 years ahead (2005-2020).
Voltage and current were measured at various laboratories; it was found that the main problems for the equipment inst
Vyacheslav A. Tukhas, S.A. Eintrop, S.V. Pozhidaev,
The average efficiency of non-condensing gas boilers running in the EU is about 70% where condensing boilers can achi
Diesel trains consume 460 kJ/tonne.km and emit 35 g/tonne.km.
CO2 emissions per passenger.km for air travel are 186 g to travel from Hamburg to Munich (source - p41).
Electrically-driven heat pumps for heating buildings typically supply 100 kWh of heat with just 20-40 kWh of electric
Transformers are an essential part of our electricity system.
Non-technical losses (NTL) in electricity distribution include mainly electricity theft, but also losses due to poor
The Climate Group has issued its second report, 'Carbon Down - Profits Up', demonstrating the carbon reduction potent
Passive Houses consume less than 15 kWh/m2.year final energy for their heating requirements, compared to a typical us
Referring to Leonardo ENERGY's discussion paper on this subject, prepared by AERE, a web e
Gradually establishing a tradition, the Geneva Assocation has just published the 2005 issue of its World Fire Statist
This 21 steps chart by ZedFactory demonstrates, in a UK setting, the challenge of a 50% reduction in carbon emissions
In the June issue of the 'Energy for Sustainable Development' Journal, a 50 GWe electrification scheme is proposed to
Liberalisation has improved the administrative efficiency of the electricity system, but what has been its impact on
This article, by SEAL in partnership with Energie-Fakten gives an overview of the potential conversion efficiency tha
Telecare offers the promise of enabling thousands of older people to live independently, in control and with dignity
Windsor Castle has received full planning permission to build a hydro-power station on the Thames River.
In a speech 'Sustainability - what more should companies do?', delivered June 16 at the Conference Board's Business &
With a population of 6 billion, earth has about 2 hectares of land available per person.
A new record was set last month, when ETZ Zurich's PAC-Car II achieved 5385 km on a litre of fuel.
UPS manufacturers follow the IT culture, used to deal with modular and versatile equipment.
In modern distribution grids, more distributed generation technologies emerge.
Wind generation peculiarities introduce new uncertainty factors in the operation of electric power systems.
Process hardening offers the prospect of solving vexing power quality problems without incurring prohibitive costs an
A new Power Quality Directive (PQD) developed by the Norwegian regulator was put into force January 1st 2005.
