The 2 MW demonstration project, H2RES, helmed by Ørsted, will use the energy company’s two 3.6MW offshore wind turbines at Avedøre Holme to power green hydrogen production and explore how to best combine an efficient electrolyser with the fluctuating power supply from offshore wind.
Inaugurated in May 2021, the project encompasses several ‘state-of-the-art’ elements, which have never been seen in this context before.
H2RES will be the world’s first electrolyser connected directly to offshore wind turbines, forming an integrated setup. The setup will be connected to the transmission grid as well, which requires new, intelligent dispatch algorithms to optimise the value of the setup depending on the market price signals. This solution ensures that external power can be imported during longer periods of low wind power production or exported if the electrical supply/demand situation is tight.
The modular electrolyser will be an intelligent N+1 electrolyser solution, which uses smart software and AI to optimize the efficiency of the hydrogen production. The hydrogen exiting the electrolyser will go through a high-pressure compressor, which compresses the hydrogen from approximately 30 bar to 350 bar. High compression yields higher energy density and thus reduces storage costs.
The storage setup is comprised of a trailer bay system and trailer containers. This innovative setup will ensure that the hydrogen ill flow to hydrogen storage containers that can be transported directly to local deposits, minimizing the need for additional hydrogen storage.