electric power Articles

  • DNV GL: A Cleaner, More Electrified World Is Within Reach by 2050

    Earlier this month (9/5), DNV GL published its first Energy Transition Outlook (ETO): Renewables, Power and Energy Use. The industry implication report is part of DNV GL’s new suite of Energy Transition Outlook publications. The report reviews global energy demand and energy supply and summarizes the implications for the power and ...


    By DNV GL

  • Emerging Asian Economies Drive the Increase in World Energy Use from 2015 to 2040

    World energy consumption is projected to increase by 28% by 2040, according to the International Energy Outlook 2017 (IEO2017), released today by the U.S. Energy Information Administration (EIA). Most of the world's growth in energy demand is projected to take place in countries outside of the Organization for Economic Cooperation and Development (OECD). China and ...


    By Smart Grid Observer

  • Hidden failures in electric power systems

    Hidden failures in equipment are those failures which occur at random and that do not lead to any discernible change in the state of the network and, therefore, remain undetected. Although hidden failures can occur in any equipment, the hidden failures in protective equipment have attracted a good deal of attention in recent years. Admittedly these failures are rare but, when the power system is ...


    By Inderscience Publishers

  • Harmonic assessment of electrical power systems

    Advances in semiconductor technology have resulted in an escalation in the numbers and power ratings of non-linear loads connected to the power system. At all voltage levels, equipment is being installed which generates harmonics. At transmission levels, FACTS devices are being installed for controlling power flow, HVDC links are used to transfer real power between AC systems and large industries ...


    By Inderscience Publishers

  • Policy and economic issues of electrical power and energy systems

    During the last quarter of the 20th century, many developments have served as catalysts for changes in the national energy policies of countries throughout the globe. These catalysts have affected the institutions and energy framework of virtually every country. In the majority of countries, the predominant electricity supply institution is the electric utility monopoly characterised by some ...


    By Inderscience Publishers

  • Electric Power Supply Quality in ship systems: an overview

    Power Supply Quality (PSQ) has become an important concern for ship electric systems. Thus, deviations of voltage from nominal values and wave-shapes could cause several problems onboard. Considering that ship system electrification eventually dominates according to the All Electric Ship concept, PSQ will be a key-factor of the normal operation, survivability and safety aboard. The paper provides ...


    By Inderscience Publishers

  • Electric power systems real-time monitoring and control

    In recent decades, several improvements have been achieved in power system operation and control. The evolution was mainly in the development of computational and communication systems. Both areas allowed the analysis of complex models of power system operation and control that resulted in a more flexible system controlled in almost real-time mode. All these improvements favoured the change of ...


    By Inderscience Publishers

  • Wind power in electricity markets: key issues and challenges

    Due to the large penetration and continuous improvement in the wind power technology, wind farms are asked to operate similar to the conventional power plants. In emerging electricity market, wind power generators are now seen differently and should sustain with/without limited government support. Although cost reductions due to technological improvements bring wind power in competitions to ...


    By Inderscience Publishers

  • Control of the regimes of the electric power systems and deregulation

    This paper presents a survey of characteristics, balances, stabilities, reliability and regimes of Electric Power Systems (EPS) and Interconnected Electric Power Systems (IEPS). They are the most complicated and important 'machines' that have ever been created by humankind. Introduction of deregulation in the EPS will require and impose new systems, new algorithms and new rules for control. EPS ...


    By Inderscience Publishers

  • Ships that harvest electrical power from ocean waves

    Electrical power generation from ocean waves is possible from ships that harvests wave energy through daily trips to offshore locations and that return back to port for the delivery of energy to the grid. Energy is stored locally on the vessel during harvesting phase and placed on the grid during periods of high demand (normally mid-day). Unlike conventional wave-power devices, the ships ...


    By GLOBE SERIES

  • Electricity trading in Indian restructured power market

    In the past few years, most of the electricity industries around the world have been undergoing a movement from monopoly utilities to restructured competitive electricity markets. At present time, the operation of electricity markets all over the world varies from one country to another. Indian electricity market is trading with power transactions through power exchanges. Practically, Indian ...


    By Inderscience Publishers

  • Disposal of saline wastewater from electrical power plants

    Saline wastewater from a coal-fired Utah Power Plant has been applied in central Utah, USA, since 1987, to irrigate various agricultural crops. The primary goals of this research: to dispose of saline wastewater by maximising actual evapotranspiration (ETa) and to prevent contamination of surface and groundwater by eliminating runoff and throughout the years (1987-2005). Plots were established ...


    By Inderscience Publishers

  • Is nuclear power more competitive producing electricity or hydrogen?

    Steam methane reforming is the world's dominant hydrogen production technology, using natural gas as both feedstock and fuel, but producing more than 9 kg of CO2 for each kilogram of H2. Natural gas prices between $6 and $8/GJ yield an average hydrogen production cost between $12 and $15/GJ, excluding the cost of CO2. High-temperature gas ...


    By Inderscience Publishers

  • Risk assessment of catastrophic failures in electric power systems

    The declining reliability of the US electric power system is raising major concerns among both politicians and power engineers in the USA. One of the reasons put forward by the North Electric Reliability Council (NERC) is the detrimental role played by the protection systems during large disturbances, which tend to help the perturbations to propagate through over-tripping of fault free system ...


    By Inderscience Publishers

  • As renewable electricity is added to the grid, are power markets misfiring?

    When increasing megawatt-hours of variable solar and wind energy began coursing through the grid, the initial concern was an operational one—could grid reliability be maintained. But it turns out those megawatt-hours are creating market challenges, as well. What needs to be done to right the markets? Travis Kavulla, vice chairman of the Montana Public Service Commission, and Albert Cheung, ...

  • A summary of wind power impacts on electric power system operating costs

    Wind power plant output depends on wind speed. Such speeds cannot be accurately predicted over daily periods because the wind fluctuates from minute-to-minute and hour-to-hour. Consequently, electric utility system planners and operators are concerned that variations in wind plant output may increase the operating costs of the system. This concern arises because the system must maintain balance ...


    By Inderscience Publishers

  • Fuel reduction potential of energy management for vehicular electric power systems

    In the near future a significant increase in electric power consumption in vehicles is to be expected. To limit the associated increase in fuel consumption and exhaust emissions, smart strategies for the generation, storage/retrieval, distribution and consumption of the electric power can be used. This paper considers a vehicle configuration with a conventional drive train. Two energy management ...


    By Inderscience Publishers

  • Generating Ecological Gains from Hydro-Electric Power - Case Study

    NCC has worked with Eskom to mitigate the environmental impacts of the Ingula Pumped Storage Scheme on a sensitive wetland site in the Little Drakensberg/Escarpment, including creating and managing a new conservation area. South Africa’s energy demand is growing at rates of around 5% a year, placing enormous pressure on Eskom not only to create new generating capacity, but also to manage ...

  • Innovation management: experience from the perspective of the electric power industry

    IBERDROLA's Corporate Unit for Research and Development (R&D) is charged with the task of defining the strategy, general policies, and criteria of technological innovation that shape the development of projects and the utilisation and commercialisation of products and services. With this aim in view, several tools to assist innovation management have been developed. The Technological Information ...


    By Inderscience Publishers

  • GE Leakwise Application Notes: Oil Detection in Hydro-Electric Power Plants

    Leakwise* Oil Detection in Water Collection Sump Under Turbines Water carries oil leakage from turbine bearings and other leaking sources into a large sump, which is built under the turbines. In most plants, pumps installed at the bottom of the sump discharge the water directly to the river.  A Leakwise lD-221 Floating Oil Detector is installed in a perforated 6” stilling well. The ...


    By GE Analytical Instruments

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