H2020
Europeo
ExpectedOutcome:To decarbonise industries, but also as an energy vector, hydrogen can play a major role, but its production needs to be scaled up in the GW scale.
High Temperature Steam Electrolysis (HTSE) technology using Solid Oxide Electrolysis Cells (SOEL), thanks to its high efficiency, has the potential to become a game changer technology for the massive production of hydrogen at low cost. However, its maturity remains one step behind alkaline and Proton Exchange Membrane (PEM) water electrolysis. Currently, the largest demonstration unit installed has a power of 720 kW (GrinHy 2.0 project), while there is a plan to install and operate in the frame of MULTIPLHY[1] project a unit of 2.4 MW by the end of 2022. In contrast, units of MWs or tens of MW are already installed or planned to operate shortly for the two other electrolysis technologies. In addition, the unit size of SOEL cells, stacks, and modules remains small, as compared to other electrolysis technologies, which might not be optimal from both a technical and economical point of view in order to address a massive hydrogen production market with multi-MW units. Indeed, small cells and stacks require the as...
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ExpectedOutcome:To decarbonise industries, but also as an energy vector, hydrogen can play a major role, but its production needs to be scaled up in the GW scale.
High Temperature Steam Electrolysis (HTSE) technology using Solid Oxide Electrolysis Cells (SOEL), thanks to its high efficiency, has the potential to become a game changer technology for the massive production of hydrogen at low cost. However, its maturity remains one step behind alkaline and Proton Exchange Membrane (PEM) water electrolysis. Currently, the largest demonstration unit installed has a power of 720 kW (GrinHy 2.0 project), while there is a plan to install and operate in the frame of MULTIPLHY[1] project a unit of 2.4 MW by the end of 2022. In contrast, units of MWs or tens of MW are already installed or planned to operate shortly for the two other electrolysis technologies. In addition, the unit size of SOEL cells, stacks, and modules remains small, as compared to other electrolysis technologies, which might not be optimal from both a technical and economical point of view in order to address a massive hydrogen production market with multi-MW units. Indeed, small cells and stacks require the assembly and integration of a large number of stacks to reach the high power targeted, which makes system integration more complex.
For SOEL to reach this scale, increasing the size of the cell, stack and module size, as well as the current density and lifetime, can be undertaken to accelerate the accomplishment of the targeted footprint and CAPEX and possibly OPEX goals.
The expected outcome of the present topic is to move forward the maturity of the technology by:
Developing and validating upscaled cells, larger stacks, and their assembly into enlarged modules;Designing the integration of these enlarged pieces into a multi-MW scale electrolysis unit;Enabling hydrogen production costs of < 3 €/kg for such a multi-MW scale plant by 2030, jointly establishing relevant business models;Paving the way for the deployment of large-scale hydrogen production units. Project results are expected to contribute to the following expected outcomes:
Contributions to at least two full scale demonstrators (MW) for SOEL technology by 2027;Maintain European leadership on SOEL technologies that will be applicable for massive hydrogen production;Solutions for enlarged cells, stacks and modules demonstrated and validated in relevant environments;New business models for SOEL technology based on upscaled components;Breakthrough and game changing technologies for SOEL upscaled components;Foster the replication of the solutions developed in the project as demonstration units;Strengthen the European value chain on cells, stacks, modules and systems by encouraging vertical partnerships;New products addressing/targeting massive hydrogen production. Project results are expected to contribute to all of the following objectives of the Clean Hydrogen JU SRIA:
Reducing electrolyser CAPEX to 2,000 €/(kg/d) and OPEX to 130 €/(kg/d)/y by 2024; Decreasing footprint to 150 m²/MW or less, this being considered as an average specific space requirement of a MW system comprising all auxiliary systems; The performance and lifetime for enlarged cells and stack should present performance and lifetime not below that of the reference cells and stack. Current density should be at least 0.85 A/cm² and degradation at thermoneutral voltage at or below 1%/1,000 hours; Reaching an electricity consumption at nominal capacity of 39 kWh/kg H2 produced;Ensure circularity by design for materials and for production processes, minimising the life-cycle environmental footprint of electrolysers;
Scope:The proposal should focus on the scalability of cells, stacks and modules, namely in terms of design, cells and stack manufacture and their assembly into modules as well as on operation in environment suitable for the selected applications and business cases as follows:
Identify the optimal sizes for larger cells and stacks from both techno-economical and practical point of view. Pinpoint any technical limits that may restrict the achievable size and the extent of cost reductions when innovating larger cells and stacks;Identify the optimal stack assembly layout into modules of > 250 kW capacity, as well as the assembly of such modules into multi-MW units;Based on this work, perform a thorough techno-economic analysis considering economies of scale and scalability of manufacturing processes to show that project developments allow reaching the CAPEX and OPEX KPI targets included above in order to pave the way to reach a Levelised Cost of Hydrogen (LCOH) of 3 €/kg, or under, by 2030; Operate successfully the cells of the optimal defined size or arrangement in the repeat unit as estimated by the action indicated above for high current density and low degradation as set out in the KPI targets included above, over 2,000 hours in relevant operating conditions; Validate, in terms of performance and durability over 2000h, stacks or assemblies of stacks in series to increase the power at the optimal defined size;Demonstrate appropriate production methods and supply chains for larger cells and stacks;Build a downscaled module of at least 80 kW of power. Upstream and downstream BoP components in relation to the targeted use case(s) should be included to minimise energy losses and the overall cost of the electrolyser module;Operate this 80-kW system in representative conditions to evaluate its efficiency (including stack and BoP components), as well as its durability for at least 2,000 h. Proposals are expected to address sustainability and circularity aspects.
Activities developing test protocols and procedures for the performance and durability assessment of electrolysers and fuel cell components proposals should foresee a collaboration mechanism with JRC (see section 2.2.4.3 "Collaboration with JRC"), in order to support EU-wide harmonisation. Test activities should adopt the already published EU harmonised testing protocols[2] to benchmark performance and quantify progress at programme level.
Activities are expected to start at TRL 4 and achieve TRL 6 by the end of the project.
The conditions related to this topic are provided in the chapter 2.2.3.2 of the Clean Hydrogen JU 2022 Annual Work Plan and in the General Annexes to the Horizon Europe Work Programme 2021–2022 which apply mutatis mutandis.
[1]https://www.clean-hydrogen.europa.eu/projects-repository_en
[2]https://www.clean-hydrogen.europa.eu/knowledge-management/collaboration-jrc-0_en
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