wave power Articles

  • 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 ...

  • 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

  • Modified Sine Wave Inverters vs Pure Sine Wave Inverters

    Most everyday appliances and commercial tools run on AC power. This is fine if you’re connecting the device to a wall outlet that provides AC power. But what if you want to use power from a DC source, like a solar-powered generator or a car battery? In such cases, individuals need to use an inverter – a device that converts DC power to AC power. There are several types of ...


    By Larson Electronics LLC

  • Why it`s time to get serious about wave power

    For most of us power from the sea means watching waves crashing on a beach or smashing up against a breakwater. But if you want to experience wave power at its most energetic then you need to be offshore. In fact you need to be over one hundred kilometres offshore. In February 2000, a British oceanographic research vessel sailing in the Rockall Trough, some 180Km from land, encountered the ...


    By Carbon Trust

  • Power quality improvements employing multipulse full-wave AC-DC converters

    In this paper, a set of full-wave AC-DC converters are investigated for power quality improvement in AC mains and DC output. A detailed classification of these full-wave AC-DC converter configurations is made in different transformer connections and several new configurations of isolated and non-isolated full-wave AC-DC converters are developed to meet specific application requirements. The ...


    By Inderscience Publishers

  • Wave of CSP activity across the MENA region

    Looking beyond Saudi Arabia, the CSP Today Global Tracker highlighted a number of updates made this week that demonstrate the progression of the concentrated solar power industry in MENA. While attention has focused heavily on the Saudi Arabian solar opportunity, it should not be forgotten that there are a number of pipelines now opening for CSP companies in the Middle East.  The ...


    By FCBI Energy

  • A binary ACO for controlling all–electric power take off system in wave energy converters

    This paper describes a metaheuristic algorithm for controlling all–electric power take off (PTO) system of wave energy converters. It provides optimal parameter values to the controller following the instantaneously changing sea state. The output of the algorithm is used to tune the electrical control systems in the PTO system in order to provide sufficient time for the point absorber to achieve ...


    By Inderscience Publishers

  • WorldWaves wave energy resource assessments from the deep ocean to the coast

    Abstract WorldWaves is a global wave and wind climate package developed through EU and industry sponsorship over many years. The offshore data incorporates global hindcast and operational wave and wind data from ECMWF, validated and calibrated with independent satellite and buoy data worldwide. These data, which may comprise full directional wave spectra time series, are used as ...


    By Fugro OCEANOR AS

  • An efficient hybrid wave/photovoltaic scheme for energy supply in remote areas

    This paper presents the efficient utilisation of hybrid photovoltaic/wave energy system for desalination water pumping and supplying the local AC and DC loads. The novel hybrid system comprises eight key parts. The PV array and wave energy permanent magnet linear generator (PMLG) as energy sources, novel AC side modulated power filter compensator (MPFC), AC-DC converter, novel DC side green plug ...


    By Inderscience Publishers

  • National Grid Alert Triggers Wave of Enquiries for Renewables Sector

    UrbanWind today reported a sharp increase in companies enquiring about on-site power generation, following National Grid’s warning yesterday.   It said growing numbers of British businesses were now looking to move towards ‘energy independence’ to protect themselves from the rising threat of future brownouts. ...


  • Supporting wave and tidal energy in the UK - an analysis of UK Policy 2000-2009

    In order to stimulate UK based marine energy technology developers, the UK Government launched the Marine Renewables Proving Fund (MRPF) in 2009. This instrument was designed to bridge the gap between early-stage research funding and the recently-criticised Marine Renewables Deployment Fund (MRDF). This paper develops an analysis framework for policy instruments designed to support technology ...


    By Inderscience Publishers

  • Developing power

    The invention of a long-lasting incandescent light bulb in the 19th century spurred on the second wave of the industrial revolution, illuminating homes, extending leisure time and bringing us to the point today where many millions of people use a whole range of devices from mood lighting to audiovisual media centers, microwave ovens to fast-freeze ice makers, and allergy-reducing vacuum cleaners ...


    By Inderscience Publishers

  • A novel particle swarm optimisation self-regulating stand-alone wave energy conversion scheme

    The paper presents a novel stabilisation scheme system for a wave energy converter (WEC) using permanent magnet linear generator (PMLG) connected to a six-pulse diode rectifier. The proposed controller of WEC-battery renewable energy system is based on multi-objective particle swarm optimisation (MOPSO) technique. The optimisation algorithm is implemented to control a novel low cost dynamic AC ...


    By Inderscience Publishers

  • Power Inverter Basics

    Basic knowledge of power inverter Power inverter mainly adopts the PWM at present, controller switch to DC rapidly in a pulse-period to ensure that the DC integral value is equal to the sampling values of AC sine wave at the same time. After filtered, more than 96% sine wave output can be realized. Pulse inverter is self-excited inverter that output voltage is pulse modulation. This kind ...


    By GoHz Inc

  • Powering Renewable Programs: The Utility Perspective

    When considering how to build out a renewable energy portfolio, there are a lot of factors and many points of view to consider. For purposes of this narrative, we will take the point of view of the electric utility itself. Your electricity providers are quite familiar with the concept of a “smart grid.” According to the Department of Energy (DOE), a smart grid “generally refers ...


    By Smart Grid Observer

  • 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

  • Simulation-based evaluation of tidal current power output characteristics

    Tidal current is considered to be one of the promising alternative green energy resources. This paper introduces a simulation based methodology to evaluate tidal current power output characteristics, including capacity factor, and power production variability patterns. Power variability analysis is crucial to grid integration systems design. The proposed methodology is applied to the well known ...


    By Inderscience Publishers

  • Is nuclear power our energy future — or a dinosaur in a death spiral?

    Identical data yield drastically different conclusions about the role nuclear will play in meeting climate goals. Nuclear power is dead. Long live nuclear power. Nuclear power is the only way forward. Nuclear power is a red herring. Nuclear power is too dangerous. Nuclear power is the safest power source around. Nuclear is nothing. Nuclear is everything. It is now generally agreed ...


    By Ensia

  • Technology of Computational Fluid Dynamics in space engines and solar-gravity draught power plants

    Non-isentropic discontinuous, unsteady flows with energy addition or extraction, during ignition of solid propellant rocket motors or tall solar towers heating transients are approached through a wave front method, initially developed by Zannetti for isentropic flows in aerodynamics. Its application in discontinuous flows with zones of different behaviour and energy extraction proves highly ...


    By Inderscience Publishers

  • Ocean exergy and energy conversion systems

    Oceans store energy in the form of currents, waves, tides, heat and salinity that can help to alleviate worldwide demand for power and the global climate change threat. They also store a considerable amount of an isotope of hydrogen (deuterium) which takes part in the most promising fusion reactions. Exergy analysis can be applied to evaluate the work potential (extractable) of a resource. This ...


    By Inderscience Publishers

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