grid system Articles

  • Building Energy Modeling 101: HVAC Design and Operation Use Case

    A great deal of energy use in buildings goes toward heating, ventilation, and air-conditioning (HVAC). In 2015, HVAC consumed 15.5 quads. The first step in reducing HVAC energy use is reducing heating and cooling load—i.e., the amount of heat that needs to be added to or removed from a building—typically by reducing heat from equipment and lighting; minimizing unnecessary ...


    By US Department of 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 ...

  • Where To Find Money In Biogas

    On the surface, wastewater treatment operations don’t appear to be handling precious material. But these facilities are actually processing a great deal of value every day. Sludge, a byproduct of wastewater treatment, turns out to be an entity worth cherishing. “Depending on treated sludge quality, the final product can be land applied, landfilled, incinerated, or composed,” ...


    By KLa Systems, Inc.

  • 3KW grid-tie solar system

    This article describes the optimum design of 3KW grid-tie solar system, which rooftop solar system can achieve maximum power output. 1 Grid tie Solar System Principle Roof solar system is a system which install solar panels on the roof, ...


    By Inverter Go

  • 3kw off-grid solar system

    3kw Off-Grid Solar System Solar panel power generation system use photovoltaic effect principle, it is the power system that directly convert solar radiation into electrical energy generating system. Off-Grid Solar System convert ...


    By Inverter Go

  • 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

  • Smarter grids, appliances, and consumers

    More and more utilities are beginning to realize that building large power plants just to handle peak daily and seasonal demand is a very costly way of managing an electricity system. Existing electricity grids are typically a patchwork of local grids that are simultaneously inefficient, wasteful, and dysfunctional in that they often are unable, for example, to move electricity surpluses to areas ...


    By Earth Policy Institute

  • Smart Grid: The game

    In his best seller “Outliers,” Malcolm Gladwell shows that it is not equipment failure or storms that typically cause planes to crash, but wrong decision-making. Much the same can be said for the power grid crash that took down a large swath of the Northeast in August 2003. The emerging smart grid is supposed to make our power system more reliable. The bad news is that it also will add complexity ...

  • Grid integration of renewables in Egypt

    Integration of large Amounts of Renewable Electricity in the Egyptian Energy Grid - Capacity Building for Management and Engineer-Technical Level (Egypt-RE-Grid). The electricity sector of the Arab Republic of Egypt produces large amounts of electricity through thermal and hydroelectric power stations. Egypt has diminishing proven oil reserves and declining production. Natural gas production is ...

  • A grid for subgrade stability

    With research to back up quantifiable benefits and recognized design standards, the use of geogrids may be ready for wider acceptance among North American railroads. A product with a 20-year plus track record is rarely referred to as "new." However, this is a label those involved with geogrids find themselves tagged with when it comes to the prod¬uct's use on North American railroads. While ...


    By Tensar International

  • The Grid vs. Rooftop Solar

    The development of solar micro-grids and mini-grids in the remotest parts of Australia seems to be a rational step in the right direction economically. However, network operators all over the world are still in doubt when it comes to the vast population in urban areas adopting similar methods. The question lies with the homeowner choosing to buy the necessary power generating equipment ...


    By Greenshine New Energy LLC

  • The design and prototype of RUDA, a distributed grid accounting system

    The grid environment contains a large and growing number of widely distributed sites with heterogeneous resources. It is a great challenge to dynamically manage and account for usage data of grid resources, such as computational, network, and storage resources. A distributed Resource Usage Data management and Accounting (RUDA) system is designed to perform accounting in the grid environment. RUDA ...


    By Inderscience Publishers

  • Grid interconnection of microturbine-based distributed generation system

    Distributed Generation (DG) is predicted to play an important role in the electric power system in the near future. The insertion of DG systems into existing electric systems has a great impact on real-time system operation and planning. It is widely accepted that Microturbine Generation (MTG) systems are currently attracting much attention for meeting customers' needs in the ...


    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

  • Ocean Power connects wave energy system to grid

    Ocean Power Technologies, Inc. (Pennington, NJ) announced that it has achieved what it claims to be the first-ever connection of a wave-energy system to the power grid in the United States. Ocean Power’s PB40 Powerbuoy system is now delivering power to the grid at the U.S. Marine Corps Base Hawaii on the island of Oahu. The Powerbuoy unit, which was installed in December 2009 at a ...

  • Grid Connection An open letter to those on grid considering pursuing hydro power

    Many people contact us concerning the possibility of using a power source that is either connected to the commercial power grid or feeding power to a house that is. While this may be possible, it is not likely to make economic sense. Over 99% of our customers are off-grid and there are reasons for this. The question is then more like: ’Can I put in a small hydro system or should I spend ...

  • National Grid, Croydon case study

    Morgan Est Contractors for National Grid Supply and installation of telemetred groundwater monitoring network, May 2006 - ongoing Hydro-Logic recently completed the supply and installation of borehole instrumentation and a telemetry monitoring system to monitor groundwater conditions in 28 observation wells located at 19 sites in the vicinity of Croydon. The project was required to ...


    By Hydro-Logic Services

  • Off-grid CPV in Latin America

    As company project pipelines for the Latin American market increase CPV’s biggest customer may not be the utility companies of America and Europe but instead industrial and commercial uses may provide the biggest opportunity for CPV in Latin America. London, February 13th 2013 Tecate, Mexico will be the site for the biggest CPV plant in the world. Using a ...

  • GIVS: integrity validation for grid security

    In recent years, grid computing has been recognised as the next step in the evolution of distributed systems. However, only limited efforts have been made to address the security issues involved in these architectures. Questions like 'What happens if a user of the grid is interested in making the overall computation fail?' are still unanswered. In this paper, we address the problem of granting ...


    By Inderscience Publishers

  • 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

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