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  • HyTransit
    services together with one state of the art hydrogen refuelling station in Aberdeen Scotland for over three years The buses are exposed to real world operation with exactly the same service requirements as diesel buses with 14 hours and 270 km per day operation The hydrogen refuelling station houses an electrolyser system for on site hydrogen generation and produces the fuel from wind energy preferably when there is surplus electricity The produced green hydrogen enables emission free mobility without air contaminents and climate damaging gases HyTransit is part of the Aberdeen Hydrogen Bus Project as well as High V LO City This project deploys Europe s largest fleet of hydrogen fuel cell buses with a total of 10 vehicles PLANET s role PLANET leads the work package that analyses the operating data gathered in the project Main tasks of this work package are Performance analysis of the buses and of the hydrogen infrastructure availability efficiency Life cycle assessment of hydrogen used in the fuel cell buses Economic assessment of the vehicles and future developments Safety issues and Social studies to examine the satisfaction of stakeholders operators drivers and passengers PLANET also reaches out to other European bus projects like CHIC

    Original URL path: http://www.planet-energie.de/gb/planet/Projekte/hytransit.html (2016-02-13)
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  • Hydrogen for the Maritime Economy
    part in reducing these emissions Electricity produced from renewable sources e g from wind can be used to produce and store hydrogen To use it as fuel for ships and vehicles operating in harbours and To re electrify it for supplying harbours and ships with green power even on calm days The project serves as a platform for stakeholders from the region to exchange information and to network Workshops will

    Original URL path: http://www.planet-energie.de/gb/planet/Projekte/maritimerwasserstoff.html (2016-02-13)
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  • Zukunft Wasserstoff
    PV wind or hydro energies and biomass They can all be transformed into electricity or heat without emitting green house gases or like with biomass emit exactly as much CO 2 as they have gathered themselves during their lifetime Their are globally available and their use is technically mature Solar PV wind and hydro energy have been in daily operation for years They all have in common their intermittent nature due to fluctuations of wind and solar radiation This causes problems with the integration of renewable energy sources into existing electricity grids and gets in the way of the large scale utilization of renewable sources One possible solution to this is the storage of renewable energy as a link and buffer between weather dependant power production and consumption dependant demand Storages can be pumped storage power plants pressurized air flywheels or batteries etc One universal storage medium though is hydrogen It can be produced from all renewable sources and is flexible in use apart from being easier to integrate into the existing centralised power supply hydrogen gives renewables access to further segments of the market namely the decentralised energy supply of homes or the traffic sector where green hydrogen as

    Original URL path: http://www.planet-energie.de/gb/planet/zukunft_h2/erneuerbare_quellen.html (2016-02-13)
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  • Zukunft Wasserstoff
    sources is more environmental friendly though The common technique for hydrogen production with electricity is electrolysis of water Water is being split into hydrogen and oxygen and by that the electrical energy is converted into chemical energy There is however a loss of ca 35 in the form of heat if it is not used downstream for other purposes Elektrical Energy Water Hydrogen Oxygen Heat The energy caught in the hydrogen can be utilized again by combustion in engines or turbines or by reversing it in fuel cells In fuel cells electricity is produced directly Further products are water and again heat in the form of steam but no fumes Hydrogen Oxygen Electrical Energy Water Heat Despite the losses of conversion for both conversion steps together this could sum up to ca 50 this kind of energy storage can be sensible in many cases The decoupling of hydrogen production and usage creates new ways of integration of renewable energy sources like wind and sun into the existing energy supply structures For the stationary use of hydrogen a large proportion of the waste heat can be used in cogeneration plants With electrolysis a use of the waste heat is theoretically also possible but not yet field tested Hydrogen has a high energy density per mass 1 kg contains as much energy as 3 kg of petrol 33 33 kWh kg hydrogen Hydrogen is however a very light gas Therefore its energy density per volume is rather low about 12 cubic meter of uncompressed hydrogen only contain as much usable energy as 1 litre of petrol By compression or liquification of hydrogen or by means of a href metal hydrides energy densities near that of petrol can be achieved 1 litre of liquid hydrogen equals about 0 27 litre of petrol Storage

    Original URL path: http://www.planet-energie.de/gb/planet/zukunft_h2/energiespeicher.html (2016-02-13)
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  • Zukunft Wasserstoff
    utilised for a wide range of tasks for portable applications such as laptops mobile phones or cameras where they replace the batteries for the automotive industry where they are regarded as the motor of the future due to their high efficiency especially in the partial load range Nearly all car manufacturers push the development of fuel cells and mass production can be expected in the forthcoming decade for stationary use to supply homes efficiently with heat and electricity CHP using fuel cells Many of these small units will be connected to each other in the future to form a virtual power plant Fuel cells can also be used in the high power range of industrial applications or conventional power plants where they help renewables to integrate into the grid For this fuel cells will be used as part of re generation plant together with electrolysers and hydrogen storages Today mainly four fuel cell types are being developed and used depending on the purpose of use and the fuel type or grade of purity available The names of the different types mostly conform to the used electrolytes with direct methanol fuel cells being an exception Low temperature fuel cells work at temperatures between 60 C and 120 C Hydrogen and methanol act as a fuel These fuel cells require a high degree of purity of the fuels and have an efficiency between 30 methanol and 45 hydrogen For the membrane that separates the two gases synthetic materials are used which is why they are called polymer electrolyte fuel cells PEFC While PEFCs are operated with gaseous fuels the direct methanol fuel cells DMFC uses an aqueous methanol solution High temperature fuel cells work at temperatures between 550 C and 1100 C This has the advantage that the fuel s degree of

    Original URL path: http://www.planet-energie.de/gb/planet/zukunft_h2/brennstoffzellen.html (2016-02-13)
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  • Ingenieurbüro für Energie- und Versorgungstechnik
    PLANET About us Our Expertise Our Services Selected Projects The Future is Hydrogen Contact PLANET Engineering and Consulting About us Our Expertise Our Services

    Original URL path: http://www.planet-energie.de/gb/planet/unternehmen/ (2016-02-13)
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  • Aktuelle Projekte
    Mobility Requirement plan for fuelling infrastructure for electric vehicles on federal highways CHIC C lean H ydrogen I n European C ities FC HyGuide Guidelines for Life Cycle Analysis of Fuels Cells and Hydrogen TEMONAS An Integrated IT tool for evaluation of the technology status of hydrogen and fuel cells Climate change mitigation Concepts in Jever Development of the concepts Integrated heat use in municipalities and Accessing the renewable energy

    Original URL path: http://www.planet-energie.de/gb/planet/Projekte/ (2016-02-13)
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  • Zukunft Wasserstoff
    hydrogen allows the optimal integration of renewable energies into existing power grids and thereby expanding their range of application hydrogen can be used to store electricity and feed it back into the grid when needed part of the produced hydrogen can be used for other applications such as environmental friendly vehicle fuel The following pages will provide further background information on the these topics Renewable energies and hydrogen Hydrogen as

    Original URL path: http://www.planet-energie.de/gb/planet/zukunft_h2/ (2016-02-13)
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