distributed energy system Articles

  • Reducing Wasted Food In Tennessee

    About 15 percent of Tennessee households are food insecure, and almost 1.2 million tons of food are landfilled annually. The state is moving quickly to address both realities. It is increasingly apparent that food waste and food insecurity in the United States is a problem, and it has especially hit home in Tennessee. An estimated 15.1 percent of Tennessee households are food insecure, which ...


    By BioCycle Magazine

  • Control and protection of distribution systems with distributed generators

    Unquestionably, in the last years, the number of generators connected directly to electric power distribution systems has increased. In addition, the main statistics and signals show that such tendency could become even more intense in the coming years. As a consequence of this policy, many technical factors related to control, protection, operation and analysis of distribution systems should be ...


    By Inderscience Publishers

  • Unpacking the energy implications of distributed water infrastructure: how are rainwater systems performing?

    Drought and concern over climate change has led to the increased use of distributed water systems in Australia to supplement centralised supply systems. A literature review carried out by the Institute for Sustainable Futures (ISF) into the energy consumption of water infrastructure found that very little data on energy consumption exists, particularly for distributed systems. This paper reviews ...


    By IWA Publishing

  • Energy efficiency in water distribution systems - A path to an ideal network - AGS experience

    Water utilities’ responsibility to deliver quality and reliable service under a sustainable basis requires an increasingly efficient management and therefore an asset management strategy that ensures high levels of service, safe and reliable drinking-water quality and an appropriate network performance. In Portugal, IAM gave a step forward with a recent Portuguese decree law (Decreto-Lei ...


    By IWA Publishing

  • Assessing the benefits of a provision of system services by distributed generation

    Distributed Generation (DG) units are said to have the potential to become an integral part of the future power systems. Today, DG units are characterised by high specific investment costs, but nevertheless are politically promoted because of their high degree of energy efficiency and their capability of reducing the current dependency on fossil fuels. However, at longer term DG units have to ...


    By Inderscience Publishers

  • Guidelines for transient analysis in water transmission and distribution systems

    All water systems leak, and many supply systems do so considerably, with water losses typically of approximately 20% of the water production. The IWA Water Loss Task Force aims for a significant reduction of annual water losses by drafting documents to assist practitioners and others to prevent, monitor and mitigate water losses in water transmission and distribution systems. One of the causes of ...


    By IWA Publishing

  • Operation and control of multiple Distributed Generation systems in the microgrid

    This paper investigates the operation and control of multiple Distributed Generation (DG) systems interconnected to the utility in the form of microgrid. The developed model of the microgrid consists of microturbine generation system, converter-based DG system with stiff DC source, synchronous-generator-based DG system and wind power system with induction generator. The Simulation model of the ...


    By Inderscience Publishers

  • Integrated framework for energy loss allocation in electric distribution systems under liberalised energy markets

    This paper discusses an integrated framework for cost allocation of energy losses of electric distribution systems under liberalised energy markets. As key contribution is developed an allocation strategy based upon Locational and Uniform Incremental Prices. The locational incremental prices send efficient economical signals to distributed generators with incentives for loss minimisation and ...


    By Inderscience Publishers

  • Application of temperature-distribution models to evaluate the energy and exergy of stratified thermal storages

    Vertical stratification occurs in many thermal energy storages, and is often promoted to increase efficiency. Six temperature-distribution models for vertically stratified Thermal Energy Storage (TES) systems are described and applied for determining their energy and exergy efficiencies. The models are Linear, Stepped, Continuous-linear, Basic Three-zone, General Three-zone and General-linear. ...


    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.

  • Intelligent power routers: a distributed coordination approach for electric energy processing networks

    The Intelligent Power Router (IPR), a concept based on scalable coordination, is proposed to control the next generation power network. Our goal is to show that by distributing network intelligence and control functions using the IPR, we will be capable of achieving improved survivability, security, reliability, and reconfigurability. Each IPR has embedded intelligence into it allowing it to ...


    By Inderscience Publishers

  • Development and opportunities of distributed generation fuelled by renewable energy sources

    The key issue to the widespread of distributed generation (DG) is the ability to safely, reliably and economically interconnect new energy sources with the existing distribution network 'utility grid'. With the rising prices of petroleum fuel sources, a high expected penetration of renewable energy sources (RES) such as wind and solar as part of the emerging DG fuel resource are expected to be ...


    By Inderscience Publishers

  • 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

  • How big is the distributed energy opportunity for water and wastewater utilities?

    Energy costs for water utilities are large, and growing Energy is a significant cost for many water utilities, and costs are growing as more energy-intensive forms of water supply, including desalination, are being used. Energy is typically the second-largest utility budget item in developed countries, after labour. In many developing countries, energy can account for 70% or even more, of ...

  • Opportunities and obstacles: integrating energy efficiency into the transmission and distribution planning process

    This paper seeks to highlight issues that warrant further evaluation associated with more precisely incorporating energy efficiency (EE) into a utility's system wide transmission and distribution (T&D) plan from a financial and load forecasting perspective while accounting for system reliability and ratepayer concerns. This paper also analyses how EE is integrated into grid operators' ...


    By Inderscience Publishers

  • Energy efficiency in water distribution systems – a path to an ideal network: AGS experience

    Infrastructure asset management (IAM) gave a step forward in Portuguese water utilities due to recent legal obligations in developing IAM plans. An effort was made by AGS (Administração e Gestão de Sistemas de Salubridade, S.A.), private operator in 17 water utilities, to achieve a higher level of managing data. Data management was an important hurdle to be overcome in order ...


    By IWA Publishing

  • Study on the impacts of peaking factors on a water distribution system in Germany

    This paper aims to explore the impacts of peaking factors on a water distribution system designed for a small city in Germany through model-based analysis. As a case study, the water distribution network was modelled by EPANET and then two specific studies were carried out. The first study tested corresponding system-wide influences on water age and energy consumption if the peaking factors used ...


    By IWA Publishing

  • 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

  • Optimized operation of water distribution system using multipurpose fuzzy LP model

    This research is aimed at multiple-objective optimization of water operations in a water supply and distribution system. These objectives include reducing energy use while at the same time meeting water quality needs. The first objective is to propose water operations aimed at minimizing energy consumption. The second is to optimize water supply and distribution from the standpoint of water ...


    By IWA Publishing

  • 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

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