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Next Generation PEM Electrolyser under New Extremes

Total Cost €


EC-Contrib. €






 NEPTUNE project word cloud

Explore the words cloud of the NEPTUNE project. It provides you a very rough idea of what is the project "NEPTUNE" about.

newly    solutions    ideal    capital    bar    reg    managed    membrane    electrolysis    keeping    thin    safety    kw    withstand    exchange    cm    reaction    improvements    crossover    load    capacity    materials    stack    catalysts    suppliers    surpass    levels    differential    intermittent    h2    temperature    cell    resin    balancing    develops    48    follow    opex    assuring    mawp    catalyst    aquivion    lt    neptune    base    polymers    rate    grid    kpis    recombination    crystallinity    2023    day    producing    glass    enhanced    electro    renewable    pem    electrolyser    demonstrating    2017    pressure    nominal    market    rates    meas    fuel    safe    realised    kg    dramatic    density    solution    capex    reinforced    supplied    significantly    electrolysers    transition    reducing    consumption    efficiency    vehicles    manufacturer    foremost    ion    area    membranes    green    hydrogen    techno    plan    rapid    breakthrough    surface    innovations    validated    conductivity    characterised    23    trl5    efficient    prove    operation    pressures    output    gas    energy    economic    water   

Project "NEPTUNE" data sheet

The following table provides information about the project.


Organization address
address: ATLAS WAY 22
postcode: S4 7QQ

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country United Kingdom [UK]
 Project website
 Total cost 1˙927˙335 €
 EC max contribution 1˙926˙221 € (100%)
 Programme 1. H2020-EU. (Increase the energy efficiency of production of hydrogen mainly from water electrolysis and renewable sources while reducing operating and capital costs, so that the combined system of the hydrogen production and the conversion using the fuel cell system...)
2. H2020-EU. (Increase the electrical efficiency and the durability of the different fuel cells used for power production to levels which can compete with conventional technologies, while reducing costs)
 Code Call H2020-JTI-FCH-2017-1
 Funding Scheme FCH2-RIA
 Starting year 2018
 Duration (year-month-day) from 2018-02-01   to  2021-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    ITM POWER (TRADING) LIMITED UK (SHEFFIELD) coordinator 603˙750.00
3    IRD FUEL CELLS A/S DK (FRAUGDE) participant 350˙188.00
5    ENGIE FR (COURBEVOIE) participant 154˙470.00
6    PRETEXO FR (MONTPELLIER) participant 81˙656.00


 Project objective

Water electrolysis supplied by renewable energy is the foremost technology for producing “green” hydrogen for fuel cell vehicles. The ability to follow rapidly an intermittent load makes this an ideal solution for grid balancing. To achieve large-scale application of PEM electrolysers, a significant reduction of capital costs is required together with a large increase of production rate and output pressure of hydrogen, while assuring high efficiency and safe operation. To address these challenges, a step-change in PEM electrolysis technology is necessary. The NEPTUNE project develops a set of breakthrough solutions at materials, stack and system levels to increase hydrogen pressure to 100 bar and current density to 4 A cm-2 for the base load, while keeping the nominal energy consumption <50 kWh/kg H2. The rise in stack temperature at high current density will be managed by using Aquivion® polymers for both membrane and ion exchange resin. Aquivion® is characterised by enhanced conductivity, high glass transition temperature and increased crystallinity. Dramatic improvements in the stack efficiency will be realised using novel thin reinforced membranes, able to withstand high differential pressures. An efficient recombination catalyst will solve any gas crossover safety issues. Newly developed electro-catalysts with increased surface area will promote high reaction rates. The novel solutions will be validated by demonstrating a robust and rapid-response electrolyser of 48 kW nominal capacity with a production rate of 23 kg H2/day. The aim is to bring the new technology to TRL5 and prove the potential to surpass the 2023 KPIs of the MAWP 2017. The proposed solutions contribute significantly to reducing the electrolyser CAPEX and OPEX costs. The project will deliver a techno-economic analysis and an exploitation plan to bring the innovations to market. The consortium comprises an electrolyser manufacturer, suppliers of membranes, catalysts and MEAs and an end-user.


List of deliverables.
Project website and database for dissemination (stakeholdesr, interest groups, contact details) Documents, reports 2020-01-14 16:56:37
Design of a project visual identity set and project templates (presentations, logo) Documents, reports 2020-01-14 16:56:31
Assessment of membrane electrode assemblies for high temperature and high pressure operation Documents, reports 2020-01-14 16:56:28
Supply of 1st generation reinforced recast and extruded Aquivion membrane, and ionomer dispersions for high temperature and high pressure operation Documents, reports 2020-01-14 09:45:01
Harmonised test protocols for assessing system components, stack and balance of plant in a wide range of operating temperature and pressures Documents, reports 2020-01-14 09:45:03
Data-set on catalytic activity, electrochemical performance and stability of enhanced catalysts Documents, reports 2020-01-14 09:45:01

Take a look to the deliverables list in detail:  detailed list of NEPTUNE deliverables.


year authors and title journal last update
List of publications.
2019 Stefania Siracusano, Claudio Oldani, Maria Assunta Navarra, Stefano Tonella, Lucia Mazzapioda, Nicola Briguglio, Antonino S. Aricò
Chemically stabilised extruded and recast short side chain Aquivion® proton exchange membranes for high current density operation in water electrolysis
published pages: 136-148, ISSN: 0376-7388, DOI: 10.1016/j.memsci.2019.02.021
Journal of Membrane Science 578 2019-09-20
2019 Nicola Briguglio, Stefania Siracusano, Giuseppe Bonura, David Sebastián, Antonino S. Aricò
Flammability reduction in a pressurised water electrolyser based on a thin polymer electrolyte membrane through a Pt-alloy catalytic approach
published pages: 254-265, ISSN: 0926-3373, DOI: 10.1016/j.apcatb.2018.12.079
Applied Catalysis B: Environmental 246 2019-09-20

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The information about "NEPTUNE" are provided by the European Opendata Portal: CORDIS opendata.

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