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Sheffield, United Kingdom

Troncoso E.,University of Las Palmas de Gran Canaria | Newborough M.,ITM Power
International Journal of Hydrogen Energy

The implementation electrolysis plant in combination with wind power plant is proposed, to absorb wind generation otherwise curtailed while generating 'green' hydrogen for the merchant hydrogen market. The objective are to (i) achieve exceptionally high wind power penetrations in future power systems, and (ii) derive hydrogen for sale in the existing merchant industrial market from surplus (zero cost) renewable electricity. The economic rationale is investigated for an isolated power system as a function wind penetration, wind curtailment target, electrolyser cost, hydrogen system efficiency and hydrogen sales price. The main outputs are the total annualized cost of wind power plant with electrolysis plant, net annual revenues and discounted pay-back periods. Unprecedented low values of pay-back period are attainable, relative to the implementation of wind power plant at low wind penetrations (ΦW). For example, at ΦW = 50%, a wind curtailment target of 80% allows the investment to be recovered after 4-7 years, provided the hydrogen system efficiency is ≥50% and the hydrogen sales price is 20-30 $/kg. Making use of some non-curtailed wind electricity to boost the utilization of the electrolyser stock is also investigated as a means for improving the return on investment. © 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved. Source

ITM Power | Date: 2012-06-01

The present invention is a hydrophilic polymer, which can be hydrated to form a hydrated hydrophilic polymer having a water content of at least 65%, wherein water content is defined as [(mass of the hydrated hydrophilic polymermass of the dry hydrophilic polymer)/mass of the hydrated hydrophilic polymer]100. The hydrophilic polymer may be hydrated to form a hydrated hydrophilic polymer having a water content of at least 65%. The present invention also 10 provides MEAs and electrochemical cells and methods of forming same.

A method of forming a hydrophilic polymer is disclosed. The method can include: reacting a monomer comprising an acid group with a Bronsted base to form an ionic liquid; polymerising the ionic liquid with at least one other monomer; and converting the ionic liquid back to the acid group after polymerisation. Also disclosed are hydrophilic polymers and membrane electrode assemblies formed using the above method.

Agency: GTR | Branch: Innovate UK | Program: | Phase: Feasibility Study | Award Amount: 26.19K | Year: 2015

To realise the potential of renewable energy to reduce greenhouse gas emissions, it is recognised that flexible energy storage is required; ideally for long periods of time, even seasonally. The production of renewable combustible gases such as synthetic methane is an emerging technology that can bridge that gap. Synthetic methane is synthesised by an innovative biomethanation process using hydrogen produced by electrolysis and carbon dioxide from sources such as water treatment, anaerobic digestion and industrial processes. Rapid response electrolysis provides a means of balancing intermittent renewable generation and solving electricity grid frequency problems arising from their increasing use. The UK gas infrastructure has the capacity to store and distribute over three times the energy distributed by the electricity network and represents an underutilised asset for the storage of renewable energy. Synthetic methane production is unique in being able to link the electricity and gas networks as a means of balancing renewable energy production, provide long-term storage of energy, decarbonising the largest source of heat in the UK and improve security of supply.

ITM Power | Date: 2013-06-14

A photovoltaic cell comprises a membrane electrode assembly obtainable by the in situ polymerisation between two electrodes of one or more monomers to form a polymer, and then infusing an activating agent into the polymer, wherein the activating agent enables the membrane electrode assembly to function as a photovoltaic cell.

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