As part of the Aquamarine project, the Hungarian Gas Storage (MFGT) is intending to implement an electrolysis system with approximately 2.5 megawatts (MW) of total performance and the corresponding hydrogen gas preparatory technology at the Kardoskút Underground Gas Storage site.
Creating the system in this form carries substantial innovative content to the energy storage concept and contributes to the balance of the electricity system. By operating the electrolysis equipment, it can be ensured that instead of turning off (stopping production) renewable energy sources by using the surplus electric energy hydrogen could be produced by the decomposition of water. The hydrogen produced in this way mixed with natural gas will be utilised within the Gas Storage’s own gas-operated equipment and reducing its own CO2 emission in this way.
Furthermore, this natural gas mixed with hydrogen could be injected into the gas transmission system – strictly complying with gas quality and safety instructions – and will be part of the supply to end-users. The spillover effect of the project will give ground to the widespread use of hydrogen utilisation/-based technology. Through the implementation of the Aquamarine Project, Hungarian Gas Storage is strongly committed to the smart sector integration and also to play an active role in the decarbonisation processes.
The entire investment of the Aquamarine Project approximately comes to 8 million euro, two-thirds of which is tender support. The rest is provided by MFGT. Due to tender support, there is a strict deadline for the project, which means that in all there are 24 months for completion including the procurement process and going live as well.
To keep the project deadlines the preparatory steps have already started, recently the procurement processes are ongoing for the electrolyser/compressor packages and also for the detail engineering. Besides the asset-related items contracting with Universities is ongoing to start the project related Research & Development cooperations.