Aside from creating less visual and environmental impact, which typically generates large opposition from local commu
Silicon(e) technology’s role in sustainable building
Monday, November 2, 2009 - 05:16
Jean-Paul Hautekeer will explain why innovation, efficiency and sustainability have become such crucial needs for business and how silicon technology can help to meet those needs, particularly in the context of building design and protection. He will begin by discussing some of the factors influencing sustainability, defining sustainable building and explaining its benefits. Looking towards the future, he will reflect on why cities will increasingly depend on sustainable technologies and how silicon will contribute to the needs of urban areas. Eight key eco-design principles will be discussed. The presentation will end with a discussion of the next steps that are essential to ensure that sustainable building continues to progress.
Aggregated Electricity Load Modeling & Control for Regulation and Load Following Ancillary Services (PSERC Webinar)
Thursday, October 22, 2009 - 12:26
This talk will present new methods to model and control the aggregated power demand from a population of thermostatically controlled loads. The control objective is to produce relatively short time scale responses (hourly to sub-hourly) for ancillary services such as load following and regulation. The control signal is applied by manipulation of temperature set points. The methods leverage the existence of system diversity and use physically-based load models to inform the development of a new theoretical model that accurately predicts - even when the system is not in equilibrium - changes in load resulting from changes in thermostat temperature set points. Insight into the transient dynamics that result from set point changes is developed by deriving a new exact solution to a well-known hybrid state aggregated load model. A straightforward minimum variance control law is developed and it is shown that the high frequency components of the output of a wind plant can be followed with very small changes in the nominal thermostat temperature set points.
The webinar took place September 18, between 1pm and 2pm US Central Time.
California Independent System Operator Corporation (California ISO) President and Chief Executive Officer since 2005, Yakout Mansour brings more than 35 years of power system experience to his position managing California’s open-access high-voltage power grid. Previously, he served as the Senior Vice President of System Operations and Asset Management for British Columbia Transmission Corporation (BCTC) since its inception in 2003. Mr. Mansour helped chart the course of BCTC as an independent entity and was a major contributor to the development of the transmission business in British Columbia and the North West.
In 2008, Mr. Mansour was named to the U.S. Department of Energy’s Electricity Advisory Committee which provides counsel regarding long-range planning and priorities for the modernization of the nation’s electricity delivery infrastructure. He also served on the North American Electric Reliability Council (NERC) panel that steered the investigation of the August 14, 2003 blackout that affected much of the eastern North America. He was part of a similar panel that looked into the blackout that affected the western United States and Canada on August 10, 1996 as well as major blackouts that affected other parts of the world in South America and Asia in recent years.
Analysing the System Costs of Wind Variability (PSERC Webinar)
Wednesday, September 9, 2009 - 11:32
Wind power forecast uncertainty raises concerns of the impact of wind power on power system and electricity market operations. This research project uses an optimal power flow (OPF) model in a Monte Carlo Simulation (MCS) framework to estimate the cost impacts from the uncertainty in wind farm output.
Using various regional load levels and assumptions on the costs for providing balancing energy, the results from the OPF and MCS analysis show that wind power forecast uncertainty, combined with load forecast uncertainty, can increase production cost for the 39-bus test system up to 350 times, though for most cases the forecast uncertainty does not introduce any significant changes from the base cases. The real and reactive power losses are shown to be higher for scenarios with low wind–high load and high wind–low load as compared to the moderate wind–load cases. The results also show minimal voltage violations across the test system.
The webinar took place October 6 between 2pm and 3pm US Eastern Time.
A new study, which was conducted on behalf of the European Commission’s Directorate-General Energy and Transport, is
A Comprehensive Assessment of Markets for Frequency and Voltage Control Ancillary Services
Tuesday, June 9, 2009 - 12:58
All users of an electrical power system expect that the frequency and voltages are maintained within acceptable boundaries at all times. Some participants, mainly generating units, provide the necessary frequency and voltage control services, called ancillary services. Since these participants are entitled to receive a payment for the services provided, markets for ancillary services have been developed along with the liberalisation of electricity markets. However, current arrangements vary widely from a power system to another.
This thesis provides a comprehensive assessment of markets for frequency and voltage control ancillary services along three axes: (a) defining the needs for frequency and voltages, as well as specifying the ancillary services that can fulfil these needs; (b) assessing the cost of ancillary services for a producer; and (c) discussing the market design of an efficient procurement of ancillary services.
Such a comprehensive assessment exhibits several advantages: (a) stakeholders can quickly grasp the issues related to ancillary services; (b) participants benefit from a standardised method to assess their system; (c) solutions are proposed to improve current arrangements; and (d) theoretical limitations that need future work are identified.
Smart Domestic Appliances in Sustainable Energy Systems (Smart-A)” develops strategies for an intelligent operation of domestic appliances, which contributes to load management in future energy systems. Therefore, the project assesses the options for load shifting by a variety of appliances across Europe and evaluates them against the Demand Side Management requirements of future energy systems, which will feature large shares of variable wind and solar power production.
The Smart-A project also features a detailed survey of the acceptance of smart appliances operation by users, which is a prerequisite for integrating domestic appliances into Demand Response schemes of electric utilities. The research also addresses the usability of available control technologies and communication standards. The overall potential of smart appliances is assessed based on a model which takes into account the variations of appliance use and the framework conditions in energy systems across Europe.
Webinar participants will receive a presentation on the results obtained in the project, including a concept for business cases for smart domestic appliances and a proposal for the development of smart appliances and their integration into the energy system.
Earthing of electrical systems is very important. Its primary purpose is to ensure safety by providing protection fo
Compact Thermal Energy Storage Technologies: Status, Applications and Developments
Thursday, November 27, 2008 - 19:04
More than half of the primary energy consumption is for the generation of heat. Thermal energy storage is of key importance for energy reduction technologies and for increasing the share of renewables in the thermal energy consumption.
In many application areas, like for instance in solar thermal systems for the existing building stock, the volume available for large capacity heat stores is limited. Systems with high renewable yield are only possible when compact heat storage technologies are developed. These storage technologies typically are several times more compact than a thermal storage using water.
An overview will be given of three classes of compact thermal energy storage: phase change material, sorption and thermochemical storage. The principles of the technologies will be explained, examples of their applications will be given and the research and development challenges described that are needed for their respective routes to the markets.
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EnergyEfficiency – A Future Market for Electrical Engineers and Contractors
Tuesday, October 7, 2008 - 20:04
During this webinar, P. Kadel will present the contents of his book with special focus on the market requirements of energy consultancy.
Present Market Situation
Energy Situation World-Wide
Basic Calculation Rules
Calculation Symbols for Energy Flows
Requirements of Energy Consultancy
Examples of Energy Efficiency System Solutions
Energy Consultancy Concepts (ARC)
Summary (Chances, Possibilities and Success)
With his book “Building Energy Consultancy”, P. Kadel outlined the complete know-how surrounding the energy flow of systems and buildings. The book starts with the basic calculation rules of different energies, succeeding with information of the world-wide energy situation, introducing the calculation rules of buildings and electrical systems, improving know-how on thermal protection and systems engineering, and combines these in the chapter on energy consultancy.
Furthermore, economic requirements are considered to optimise the energy flow in buildings and systems. Many examples are included so that the reader can follow and practice the introduced knowledge. In the appendix, various tables specifiying energy values are included and there are some helpful calculation tools on the attached disc. The book is most appropriate for those who wish to expand their know-how in energy efficiency solutions.
Premium Power Quality Contracts and Labelling
Monday, August 27, 2007 - 12:53
This webinar discusses some of the power quality contracts and classification systems used by distribution companies. It will show the different contracts used around the world by some groups of customers and utilities. It also discusses the roles of the regulator when allowing the market to agree on premium power quality contracts.
This webinar also describes the possiblity of classification of power quality at the point of supply for the most important power quality aspects (interruptions, voltage dips, harmonics, voltage fluctuations).