Power Grids Articles

  • Study: Climate change could overwhelm U.S. electrical grid

    Climbing temperatures associated with global warming could wreak havoc on the U.S. electrical grid, according to a new study on the economic and social costs of climate change. Published last week in the scientific journal Proceedings by researchers at the University of California-Berkeley, Stanford, and University of Michigan, the study says the country will need to spend at least $180 billion ...

  • What will it take to integrate renewables into the power grid? Ask a bicyclist.

    When it comes to fitting into the current system, bike commuters and electrons have a lot in common. There’s nothing quite like biking down clogged city streets, weaving in and out of traffic. For short distances, it’s faster than driving. It’s liberating. It’s fun. It also makes it painfully clear that most roads ...


    By Ensia

  • European Power Markets in Transition

    With European energy markets in transition, all market participants now face a number of potentially tricky challenges. A combination of EU initiatives, increasingly invasive regulations and a backdrop of falling and less volatile commodity prices, have precipitated an era of change and uncertainty in which there are fewer trading opportunities and profits are harder to come by. Analysis ...


    By Powel AS

  • Knowing power grids and understanding complexity science

    Complex networks theory has been well established as a useful framework for studying and analysing structure, dynamics and evolution of many complex systems. Infrastructural and man–made systems like power grids, gas and water networks and the internet, have been also included in this network framework, albeit sometimes ignoring the huge historical body of knowledge surrounding them. Although ...


    By Inderscience Publishers

  • Context–independent centrality measures underestimate the vulnerability of power grids

    Power grids vulnerability is a key issue in society. A component failure may trigger cascades of failures across the grid and lead to a large blackout. Within complex network analysis, structural vulnerabilities of power grids have been studied mostly using purely topological approaches, which assumes that flow of power is dictated by shortest paths. However, this fails to capture the real flow ...


    By Inderscience Publishers

  • A complex network approach for identifying vulnerabilities of the medium and low voltage grid

    The vision behind the smart grid promises, among other things, to bring more attention to the lower layers of the distribution network where users are gradually transforming into prosumers. Independent of this transformation, users will expect the same (or higher) level of reliability of the infrastructure. In this paper, we consider physical samples from the Dutch medium and low voltage network ...


    By Inderscience Publishers

  • A perspective overview of topological approaches for vulnerability analysis of power transmission grids

    Vulnerability analysis is a key issue in power systems since power transmission grids play a crucial role as a critical infrastructure. The power grid structure (number of nodes and lines, their connections, and their physical properties and operational constraints) is one of the main factors to assure power system security. Complex network theory as a promising topological approach for the ...


    By Inderscience Publishers

  • Cascade failures and distributed generation in power grids

    Power grids are nowadays experiencing a transformation due to the introduction of distributed generation based on renewable sources. At difference with classical distributed generation, where local power sources mitigate anomalous user consumption peaks, renewable sources introduce in the grid intrinsically erratic power inputs. By introducing a simple schematic (but realistic) model for power ...


    By Inderscience Publishers

  • Correlating empirical data and extended topological measures in power grid networks

    Power grids are considered complex networks. Their structure and dynamics have been thoroughly studied and many topological measures have been used to classify them, evaluate their behaviour or model their response to malfunctions. Results have been theoretical and correlations between real dynamical behaviour (i.e., major events) and structural measures have not yet been found. New electrically ...


    By Inderscience Publishers

  • Many hamsters: how the EU can enable private firms to provide renewable energy

    This paper investigates the energy investment needs of the European Union (EU), including renewable energy. Europe currently has little or no economic growth, and interest rates are expected to rise. Given the state of many EU countries' economies, this is a good time to encourage investment because - according to Keynesian economics - extra spending can stimulate economic activity. The current ...


    By Inderscience Publishers

  • Airparif uses Isatis to process 11 million+ mesh grids and generate daily air quality maps - Case Study

    Isatis has been part of Airparif data processing workflow for 10+ years. The software is used daily to gather data and map air pollution over Paris area. The facts Airparif is part of the French AASQA network (“Associations Agréées de Surveillance de la Qualité de l’Air”). The AASQA are a French non-profit association accredited ...


    By Geovariances

  • Case study - Green Machine uses biomass to put power back on the grid

    St. Helena Island, South Carolina Gross Power Output: up to 43kWe Thermal Heat Input: 200 - 500kWt Hot Water Input Range: 160 - 235°F Hot Water Flow: 150 GPM     Cold Water Input: 68°F Cold Water Flow: 150 GPM In fall 2010, American Capital Resources Company installed ElectraTherm’s heat-to-power Green Machine, for generating power from ...


    By ElectraTherm

  • Change 60Hz to 50Hz Power

    In conventional power supplies, the mains is rectified (that means the negative parts of the main cycle are flipped over to become positive). This gives 50 or 60 positive pulses per second. These pulses are used to charge up capacitors that store the charge between top ups. If you put a scope on the capacitor, you will see a sawtooth waveform that shows the top of the pulse, then the voltage ...


    By Shenzhen Gozuk Co., Limited

  • Gatorade Distribution Facility Tolleson, Arizona

    "The Gatorade solar installation produced 108% of the expected energy during the 30-day incentive performance verification test, the highest to date.” Chico Hunter, Sr. Engineer, SRP EarthWise Solar Energy Program Unique Feature: The system has generated more energy than anticipated- at 108% capacity, according to officials from the Salt River Project (SPR), the Phoenix based ...


    By Kyocera Solar, Inc.

  • micca - case study

    Customer: micca informationstechnologie gmbh Sector: Monitoring of overhead power lines / Energy Country: Austria Technology Supplier: Microtronics Engineering GmbH Year of Cooperation: 2009 Website: www.micca.at The Customer Seated in Vienna, Austria, the micca informationstechnologie gmbh is an expert for industrial metrology. micca is focusing on ...

  • Cooperation with micca - Case Study

    The Customer Seated in Vienna, Austria, the micca informationstechnologie gmbh is an expert for industrial metrology. micca is focusing on the fields of energy supply with a strong emphasis on metrology for electrical substations and high-voltage power lines. micca cooperates with a network of partners and in the technology field also has a close cooperation with the Austrian ...

  • Bringing stability to the Grid: AES Energy storage angamos Battery Energy Storage System (BESS) - Case Study

    Opportunity In 2011, AES Gener, in cooperation with its subsidiary Empresa Electrica Angamos, completed construction on a 544MW thermal power plant in the town of Mejillones in Northern Chile. The plant provides electricity to this important mining region. To ensure grid reliability against transmission or generation losses, power generators in the region each hold back capacity to meet ...


    By Energy Storage Association

  • Avoiding the Power Grid with Renewable Energy

    For approximately one hundred years, thriving countries have been dependent on only one form of distributing power; electricity sent over large transmission grids from plants generating electricity, to customers in businesses, homes, and factories.  Generators extract energy from rooftop solar panels, garbage, and sewage, which replace or assist coal, nuclear, and natural gas plants. A ...


    By Greenshine New Energy LLC

  • Smart Grid Deployment Critical for Clean Energy Future

    A new report from the International Energy Agency (IEA) says the widespread deployment of “smart grids” – networks that monitor and manage the transport of electricity from all generation sources to meet the varying electricity demands of end users – is crucial to achieving a more secure and sustainable energy future. With current trends in the supply and use of energy ...


    By GLOBE Foundation

  • Large-scale hydropower system optimization using dynamic programming and object-oriented programming: the case of the Northeast China Power Grid

    This paper examines long-term optimal operation using dynamic programming for a large hydropower system of 10 reservoirs in Northeast China. Besides considering flow and hydraulic head, the optimization explicitly includes time-varying electricity market prices to maximize benefit. Two techniques are used to reduce the ‘curse of dimensionality’ of dynamic programming with many ...


    By IWA Publishing

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