As the global urgency to achieve net-zero carbon emissions intensifies, green hydrogen has emerged as a cornerstone of the future energy landscape.
However, transitioning from fossil fuels to clean hydrogen requires a massive leap forward in technology, one that can handle the unpredictable, fluctuating nature of renewable energy while keeping costs commercially viable.
Traditional alkaline water electrolysis is a mature technology, but it faces significant hurdles when integrated with intermittent renewable sources like wind and solar. Constant power fluctuations accelerate component wear, reduce efficiency, and drive up both Capital Expenditure (CAPEX) and Operational Expenditure (OPEX). AELIOS was launched to break through these barriers.
AELIOS targets a major leap in performance, aiming to achieve a milestone stack performance of 1A/cm2 at an exceptional system-level efficiency of 48kWh/kg. To reach this, the project focuses on three breakthrough innovation pillars:
True sustainability extends beyond emission-free operation. Uniquely, the AELIOS project incorporates a strict focus on the circularity, sustainability, and recyclability of all its innovative materials from day one.
Over its 36-month duration, the consortium will integrate the most successful components into a final, high-pressure AELIOS stack prototype. This cutting-edge system will undergo rigorous validation under real-world, variable-load conditions for a targeted 3,000 hours.
By merging industrial scalability with scientific precision, AELIOS is not just optimizing technology, it is unlocking a vital, cost-effective path to meet the global net-zero CO2 targets and secure a cleaner energy future.
The main objective of the AELIOS project is to design and validate a robust, sustainable, and highly efficient Alkaline Electrolyser that operates flexibly with renewable energy sources while significantly lowering both Capital Expenditure (CAPEX) and Operational Expenditure (OPEX).
Developing highly efficient 3-D structured electrodeposited Ni-based electrodes and compact, well-adherent Bipolar Plates (BPPs) coatings to withstand harsh operational conditions.
Enabling an overall stack performance of 1A/cm2 at a system-level efficiency of 48 kWh/kg.
Prolonging the lifespan of electrodes, BPPs, and BoPs to reduce overall component degradation to below 0.10% per 2000 hours.
Implementing smart operational strategies and lifetime modelling tools to safely manage the variable, fluctuating loads of renewable energy.
Investigating the sustainability and recyclability of all new materials, culminating in a final high-pressure stack prototype tested for 3000 hours under relevant steady-state and variable conditions.
AELIOS expects to transform alkaline electrolysis from a rigid, baseline industrial process into a dynamic, cost-effective, and fully circular solution that anchors the renewable energy grid.
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