Power Distribution Articles

  • National Grid Winter Outlook Report 2016

    Winter is coming….and the lights will be staying on Since March this year there have been a number of developments that have raised concerns over the ability to meet the UK’s energy demand, particularly during this winter period. A number of unplanned coal plant outages in the first half of the year have tightened supply margins significantly and placed greater strain on ...


    By Inprova Energy

  • Why smart utilities are embracing distributed electricity

    Power companies that take initiative now can position themselves for a bright future in tomorrow’s clean energy economy The growth of distributed energy generation, particularly in the form of solar energy, leaves the aging, monopolistic electric utility system a daunting choice: Come out swinging in defense of the status quo or boldly jump into the cockpit, put on the ...


    By Ensia

  • Improving flow distribution in influent channels using computational fluid dynamics

    Although the flow distribution in an influent channel where the inflow is split into each treatment process in a wastewater treatment plant greatly affects the efficiency of the process, and a weir is the typical structure for the flow distribution, to the authors' knowledge, there is a paucity of research on the flow distribution in an open channel with a weir. In this study, the influent ...


    By IWA Publishing

  • New indices for reliability assessment of water distribution networks

    This paper presents new indices to evaluate the reliability of water distribution networks (WDNs) usable in the design, planning and management of these networks. Since the pressure-driven analysis (PDA) of WDNs produces more accurate results than the demand-driven analysis, the new indices are proposed based on the PDA. In the proposed measures, nodal pressures, nodal available discharges and ...


    By IWA Publishing

  • Application of the LBM with adaptive grid on water hammer simulation

    A lattice Boltzmann method (LBM) is utilized to solve single-phase transient flow in pipes. In order to eliminate grid limitation related to the method of characteristics, governing equations are modified using appropriate coordinate transformation. The introduced modification removes connection between Courant number and spatial disposition of the computational nodes, forming a more flexible ...


    By IWA Publishing

  • New study assesses the global volume and distribution of “modern” groundwater

    Groundwater has long been an important resource for spraying, drinking water, energy production and more, but getting a clear picture of how much is available and being recharged over time has been a challenge. Now an international group of hydrologists led by Tom Gleeson, engineering professor at the ...


    By Ensia

  • A grid-based integrated surface–groundwater model (GISMOD)

    A distributed hydrological model, the Grid-based Integrated Surface-groundwater MODel (GISMOD), was developed to simulate hydrological processes by considering water interaction among different soil layers. The model integrates six modules. Basic information on catchment, such as the flow direction and the drainage network, can be obtained automatically from digital elevation model (DEM) data ...


    By IWA Publishing

  • Developing Decentralised Distributed Generation in Africa

    Many countries in the developed world created power generation networks based upon large centralised power generation stations with significant investment in power transmission and distribution networks. From the African context this has not happened yet there is a huge need to increase power generation capacity. The thought of addressing this through a small number of large gas, ...


    By Clarke Energy

  • Speeding up the water distribution network design optimization using the ΔQ method

    To optimize the design of a water distribution network (WDN), a large number of possible solutions need to be examined; hence computation efficiency is an important issue. To accelerate the computation, one can use more powerful computers, parallel computing systems with adapted hydraulic solvers, hybrid algorithms, more efficient hydraulic methods or any combination of these techniques. This ...


    By IWA Publishing

  • Denmark generates 140% of energy from wind power

    On July 09, 2015, Denmark reached a renewable energy milestone by becoming the first country to generate 140% of its energy needs with wind power. According to The Guardian, the surplus energy was redistributed to neighboring Germany, Norway, and Sweden. The ...


    By XPRT Media

  • The Economics of Grid defection

    Distributed electricity generation, especially solar PV, is rapidly spreading and getting much cheaper. Distributed electricity storage is doing the same, thanks largely to mass production of batteries for electric vehicles. Solar power is already starting to erode some utilities' sales and revenues. But what happens when solar and batteries join forces? Together they can make the electric grid ...


    By HOMER Energy LLC

  • Water distribution network robust design based on energy surplus index maximization

    The aim of this paper is to show that energy surplus indices, such as resilience index, besides providing a very good indirect measure of water distribution network reliability, also represent a valuable and effective indicator of network robustness under alternative network scenarios. It can thus be profitably used for network design under conditions of uncertain future demands. The ...


    By IWA Publishing

  • Brazil transmission: what impact on O&M?

    Brazilian wind developers may increasingly have to factor transmission links into their operations and maintenance (O&M) plans if grid connection delays persist in the market. Bloomberg earlier this year reported that firms such as CPFL Energia, Brazil’s largest private sector utility, with more than 1.3GW of wind farms in operation or under construction, were stepping forward to bid ...

  • 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

  • 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

  • Off-Grid Hybrid Systems in Thailand - Case Study

    Project: Water Treatment Solution Product scope: System design, supply of equipment , commissioning of 5 systems by Fortis Wind Energy & Independent Energy The Netherlands Project: Off-Grid Hybrid Systems in Thailand In February 2015 “Fortis Wind Energy” & “Independent Energy” from The Netherlands together with ...


    By Fortis Wind Energy

  • Feasibility Study of Wind Power in India - 2014

    This is an Investor Series report which provides the information on: Wind Turbine Design and Characteristics Permits and Licensing Site Selection Criteria Economics and Financial Model Operations and Maintenance Modern Trends in Wind Farms Case Study in Wind Sector Grid Connection ...


  • Using real options for an eco-friendly design of water distribution systems

    This paper presents a real options approach to handling uncertainties associated with the long-term planning of water distribution system development. Furthermore, carbon emissions associated with the installation and operation of water distribution networks are considered. These emissions are computed by taking an embodied energy approach to the different materials used in water networks. A ...


    By IWA Publishing

  • A sociotechnical systems model for smart-grid adoption in mid-sized urban environments

    In this paper, we present a quantified system dynamics model simulating the adoption of smart grid technologies such as electric vehicles, PV systems and smart meters in a mid-sized urban system and the resulting impact on the CO 2 emissions. We also analyse the impact of different subsidies on the adoption and calculate the effectiveness regarding public and private spending on these ...


    By Inderscience Publishers

  • 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.

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