Pressurized Efficient Alkaline Electrolyser (PEACE)




PEACE is a research and innovation project funded under the EU Horizon Europe programme. It brings an innovative solution to the reduction of hydrogen production costs by developing a new, efficient alkaline electrolyser while utilising a two-stage pressurisation concept.




The reduction of emissions of carbon dioxide (CO2), represents a significant challenge within the EU Green Deal and for EU’s efforts against the ongoing climate crisis. This challenge is of outmost importance in order to achieve the goal of a climate-neutral continent by 2050. As early as 2030, the EU plans to reduce greenhouse gases emissions by at least 55%, necessitating the use of higher shares of renewable energy and greater energy efficiency. To meet these goals, the production of green hydrogen through electrolysis (powered by renewable sources) offers a viable solution.


The PEACE project focuses on developing high-pressure alkaline electrolysis technology to substantially reduce hydrogen production costs to enhance the competitiveness of the hydrogen economy. Furthermore, the project aims to enhance the integration of the hydrogen production with its subsequent utilisation within the chemical industry. Such an integration reduces costs and saves energy. PEACE will also conduct a life cycle assessment (LCA) to quantify the environmental impacts of its innovative technology.


Project summary




The reduction of emissions of carbon dioxide (CO2), represents a significant challenge within the EU Green Deal and for EU’s efforts against the ongoing climate crisis. This challenge is of outmost importance in order to achieve the goal of a climate-neutral continent by 2050. As early as 2030, the EU plans to reduce greenhouse gases emissions by at least 55%, necessitating the use of higher shares of renewable energy and greater energy efficiency. To meet these goals, the production of green hydrogen through electrolysis (powered by renewable sources) offers a viable solution.


Therefore, the PEACE project aims to develop a technology of high-pressure alkaline electrolysis (AEL) to substantially reduce hydrogen production costs, enhancing the competitiveness of the hydrogen economy.


Within the PEACE project, a demonstrator of an AEL system exceeding 50kW, capable of operating at pressures more than 50bar, will be designed and developed. This will be achieved through a novel concept involving two-stage pressurization. The integration of advanced components, innovative design, and optimized operation strategies will be explored through modelling and experimental testing, ultimately aiming to demonstrate a system with impressive efficiency characteristics.


PEACE places a strong emphasis on sustainability and circularity aspects – a Life Cycle Assessment (LCA) of the PEACE technology will be conducted to quantify its environmental impacts.


Furthermore, PEACE will elaborate on an enhanced integration of hydrogen production with its subsequent use within the chemical industry to achieve cost reduction in general and energy savings in particular.

The overarching goal is to achieve a technological breakthrough that positions Europe as a leader in highly pressurized AEL technology within the next three years.





PEACE is a research and innovation project funded under the EU Horizon Europe programme by the Clean Hydrogen Partnership. The Clean Hydrogen Partnership (as per its legal name Clean Hydrogen Joint Undertaking) is a public-private partnership consisting of the European Commission, Hydrogen Europe (the leading European association of hydrogen industries) and Hydrogen Europe Research (the European association of research and technology organisations within the hydrogen and fuel cell sector).


The aim of the Clean Hydrogen Partnership is to support research and innovation activities in hydrogen technologies in Europe under the guidance of the EU’s Hydrogen Strategy.


The PEACE project is being carried out by seven entities, under the coordination of the Deutsches Zentrum für Luft- und Raumfahrt (DLR). The consortium comprises two SMEs, four research and development centres with established expertise in alkaline stack and system, and Life Cycle Assessment, as well as one of the largest hydrogen production and utilization companies globally.

Project consortium

About DLR

Deutsches Zentrum für Luft- und Raumfahrt



The DLR Institute of Engineering Thermodynamics (Department Energy System Integration) holds the coordinator position within the PEACE project. It has a track record of innovation in AEL electrode development, cell and stack component design and qualification, and possesses an in-house production facility and partnerships for large surface electrode packages. The PEACE project coordinator is Fatemeh Razmjooei, Ph.D. (Fatemeh.Razmjooei@dlr.de).


In addition to project management, DLR guides project research activities based on the simulation framework for processes within electrochemical reactors (WP5). DLR provides expertise in modelling and validation of simulations, process system modelling capabilities for steady-state and dynamic modelling. The in-house modelling library for dynamic modelling of electrolyser stacks and systems, known as the Transient Electrochemical reactor Model for Process and Energy SysTems (TEMPEST), contributes to installations, operations, and monitoring of electrolyser demonstrator systems. Moreover, DLR´s expertise contributes to the manufacturing of the required high-performance electrodes, qualification (cell and short stack testing), BOP reviewing and discussion. DLR´s role in active results dissemination (e.g., PEACE workshops organisation, publication of peer-reviewed articles) is of utmost importance.


About MMI





Materials Mates Italia was founded in 2006 to produce advanced scientific instrumentation in the field of Material Science and to provide technical support to both industries and universities. The product range include Fuel Cells and Electrolysers test benches, bespoke cells, and specialized measuring instruments developed in cooperation with the most important laboratories studying energy generation and storage. Throughout the years, MMI has transferred knowledge and solutions from its laboratory to industrial customers through its Engineering /Consulting Branch.



Since 2006, MMI has supplied more than twenty hydrogen system shared between fuel cells and electrolysers. In the last four years, MMI has also provided high pressure (30 to 50 bar) electrolyser test stands, including cells and stacks. The MMI team is led by Paolo Lupotto. 



MMI is in charge of the technical needs of the project regarding the adaptation and utilisation of the test rig. MMI designs, produces, and commissions the mechanical and hydraulic components of the stacks to be employed in the PEACE project, up to the proof of concept (PoC) level. This includes exploration of materials and working techniques to be applied. MMI leads WP3 and contributes to WP4, and to a lesser extent, to WP2 and WP6.







About TU/e


TU/e is a dynamic university in science and technology, integrating education and research. The TU/e strategy aims to find solutions to the global challenges of a sustainable world, the digital technological revolution and the impact of technology on society. Across its nine departments, the university enrolls more than 12,500 students and 1,400 PhD candidates. In its Eindhoven Institute for Renewable Energy Systems (EIRES) TU/e researchers from different departments jointly work on materials, processes and systems for energy storage and conversion to accelerate the energy transition.

TU/e and PEACE

The Sustainable Process Engineering group in the department of Chemical Engineering of the TU/e excels in setup and reactor design. It possesses both atmospheric and pressurized electrolysis setups for AEL and AEM electrolysis and employs 3D printing for the design of electrochemical reactors. The TU/e team is led by Thijs de Groot.

In WP2, TU/e conducts single cell testing at elevated pressures and temperatures to achieve optimal performance in terms of cell potential and gas crossover. TU/e will also actively participate in the WP6 dissemination activities.






About BTU

BTU belongs to the most dynamic scientific communities in Germany, with close collaborative connections in science and industry within its region. The university comprises six faculties and caters about 7,000 students across nearly 60 study programmes. The research focus of BTU revolves around four major themes: energy reform and decarbonization, health and life sciences, global change and transformation processes, and a cross-cutting theme of artificial intelligence and sensorics.







BTU has over 15 years of experience in operating and optimizing AEL plants for hydrogen production. Their AEL-related laboratories comprise a 100-kW prototype of an alkaline pressure electrolyser, an alkaline pressure electrolyser test bench, an atmospheric AEM electrolyser test bench, a chemical lab, and an energy technology lab. Additionally, BTU has actively participated in numerous collaborative R&D projects focused on AEL and AEM technologies. BTU team is led by Lars Röntzsch.


Source: https://www.b-tu.de/fg-thermische-energietechnik​


As the leader of WP4, BTU will undertake the reconstruction and operation of the dual-stage high-pressure AEL device. Furthermore, BTU will make contributions to stack components design (WP3) as well as modelling efforts (WP5). BTU team will also play a significant role in the high-profile dissemination of the project´s outcomes.









About GG

Grant Garant

GG, an SME, has been providing consulting services since 2004 for the preparation and management of international research and innovation projects, as well as conducting research project management. GG offers services in analysing target groups relevant to technology transfer, including communication with key regulators and policy-makers through its expert network. The company has expertise in data management for scientific projects, communication, dissemination, and exploitation of results from research and innovation projects. Additionally, GG assists clients in commercializing their project results.



GG is leading WP6 which is mostly dedicated to project communication and dissemination. GG will define the project´s communication and dissemination strategy, encompassing exploitable results and plans for their further use. GG manages PEACE promotion, runs the project website and social media accounts. Alongside these responsibilities, GG supports the consortium in terms of data management and intellectual property issues. The GG team is led by Karolína Řípová.


About HyCC

HyCC is a leading industrial partner for safe and reliable green hydrogen supplies and circular chemistry solutions to enable the transition to zero-carbon industry. Building on over 100 years of experience in electrolysis and its leadership in safety, HYCC realizes pioneering water electrolysis projects to supply industries with zero-carbon hydrogen from renewable power and water. From making sustainable steel to circular jet fuels – HYCC believes that green hydrogen is the key to providing a growing population with essential products, with zero emissions to realize more sustainable economic development. HyCC is a joint venture of European essential chemical company Nobian and Macquarie Asset Management’s Green Investment Group.










Leveraging its extensive experience in green hydrogen production and its subsequent applications, HyCC undertakes the role of owner-operator of large-scale water electrolysis plants within the PEACE project. In this capacity, HYCC contributes insights regarding the most suitable applications, locations, and scales at which the technology developed through the PEACE project can be effectively deployed. The HYCC team is led by Fernanda Neira D´Angelo.



 Source: HYCC​

HYCC will provide end-user requirements for the developed technologies, focusing on crucial aspects like required gas purity, safety protocols, operational flexibility, allowable plant costs, and essential operating strategies, all of which are necessary for achieving certification as green hydrogen (as per WP4 and WP5). Additionally, HYCC will perform calculations to determine the total CAPEX (Capital Expenditures) and OPEX (Operating expenditures) costs for an entire plant built upon the developed technology (as detailed in WP5).


About DTU

DTU is an elite technical university renowned for its high-level research and education, catering more than 13,000 students across 87 study programmes. DTU sees technology as a pivotal tool for driving change and adopts the UN Sustainable Development Goals as a foundation for its activities. The university research in natural and technical sciences frequently takes a cross-disciplinary approach and involves other academic, private and public partners to foster innovation transfer. DTU is recognized for its provision of highly competent scientific advice and its support for innovation through wide assistance to start-ups.








For over two decades, the Circularity & Environmental Impact research division of the DTU Sustain department has been immersed in environmental assessments of technologies and systems. During this time, they have developed EASETECH, a Life Cycle Assessment (LCA) model tailored for conducting detailed bottom-up evaluations of environmental technologies, including their inputs, processes, and intricate interconnections with surrounding technological systems. The DTU team is led by Valentina Bisinella.

Within the WP6, the DTU team will undertake the LCA of PEACE pressurized hydrogen production. The LCA will focus on evaluating the circularity and sustainability aspects of the technology, with a particular attention to the impacts of pressurization. This analysis will involve a comparative assessment of the technology vis-à-vis alternative methods that do not involve pressurisation. DTU will also actively participate in other WP6 activities.



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