Emissions-free hydrogen production edges closer with new pilot site in Denmark

October 25, 2018, CORDIS
Credit: CC0 Public Domain

An EU initiative will facilitate the production, storage and supply of hydrogen for a wide range of end users. It will help integrate green power into the energy system in a flexible way.

With increased efforts to cut carbon emissions, electric power from renewables has emerged as a vital energy source. Thanks to its strong potential to support energy transition, the role of as a versatile, clean and safe energy carrier is widely recognised.

Its production based on utilising electrolysis – the separation of water into hydrogen and oxygen – is a known technology. However, cost-competitive and sustainable production of large amounts of hydrogen with this process has proven difficult. The EU-funded HyBalance project is tackling this challenge by producing hydrogen on a larger scale from wind turbines with a power-to-hydrogen plant. It will enable the storage of cheap renewable , providing both grid balancing services and hydrogen for industrial users. It will also supply the transportation sector with hydrogen.

The project's pilot site was recently inaugurated by Air Liquide, the company that is coordinating HyBalance. As explained in a press release, the electrolyser, "with a capacity of 1.2 MW, enables the production of around 500 kg of hydrogen a day without releasing CO2." This will be enough for 1 000 cars and can also be supplied to hydrogen buses and forklifts, according to a presentation on the project website. Besides industrial customers, the hydrogen that's produced is used to supply the network of five hydrogen stations installed and operated in Denmark.

Balance and stability

Grid balancing is crucial for the stability of electricity systems. Due to their intermittent nature, solar or wind energy sources can over or undersupply a grid with electricity. If left unbalanced, the excess voltage and frequency from the oversupply of electricity could cause damage to electronics. Electrolysers enable utility companies to store the energy that would be wasted over long periods of oversupply. During peak demand, the stored hydrogen can be used to generate enough electricity.

"Wind power is fluctuating and requires adequate flexibility options to ensure balance in the electricity grid. Dynamic water electrolysis offers such flexibility using electricity when the prices are low or there is a need for balancing and transforming it into hydrogen," a project brochure notes. In its bid to promote green transition, "HyBalance will develop business models which will determine when it pays off to turn the wind power into hydrogen," as highlighted in the same presentation.

The project will use proton exchange membrane (PEM) electrolysis technology, which is characterised by high efficiency (more hydrogen produced per kWh of electricity) and flexibility, according to the presentation. The partners hope that this technology will be fully validated for commercial applications when the project is concluded.

The ongoing HyBalance (HyBalance) was designed to demonstrate the link between storage in the form of hydrogen and the deployment of hydrogen mobility solutions. "It will not only validate highly dynamic PEM electrolysis technology and innovative hydrogen delivery processes involved but also demonstrate these in a real industrial environment by applying high pressure hydrogen production and delivery equipment," as stated on CORDIS.

Explore further: New technology improves hydrogen manufacturing

More information: HyBalance project website: hybalance.eu/

Related Stories

New technology improves hydrogen manufacturing

September 4, 2018

Industrial hydrogen is closer to being produced more efficiently, thanks to findings outlined in a new paper published by Idaho National Laboratory researchers. In the paper, Dr. Dong Ding and his colleagues detailed advances ...

Power-to-gas facility with high efficiency

March 2, 2018

The natural gas network may serve as a buffer for weather-dependent electricity from the wind and sun. This requires economically efficient processes to use electricity for the production of chemical energy carriers. The ...

NREL, Xcel energy sign wind to hydrogen research agreement

May 8, 2006

The U.S. Department of Energy's, National Renewable Energy Laboratory and Xcel Energy recently signed a cooperative agreement for an innovative "wind to hydrogen" research, development and demonstration project. Researchers ...

Recommended for you

Technology near for real-time TV political fact checks

January 18, 2019

A Duke University team expects to have a product available for election year that will allow television networks to offer real-time fact checks onscreen when a politician makes a questionable claim during a speech or debate.

Privacy becomes a selling point at tech show

January 7, 2019

Apple is not among the exhibitors at the 2019 Consumer Electronics Show, but that didn't prevent the iPhone maker from sending a message to attendees on a large billboard.

China's Huawei unveils chip for global big data market

January 7, 2019

Huawei Technologies Ltd. showed off a new processor chip for data centers and cloud computing Monday, expanding into new and growing markets despite Western warnings the company might be a security risk.

1 comment

Adjust slider to filter visible comments by rank

Display comments: newest first

not rated yet Oct 28, 2018
Both President Obama and President Trump let other countries take the lead on hydrogen -- squandering the momentum President Bush had given us when he put hydrogen on the front burner. If we don't wake up soon we'll find ourselves on the outside looking in.
But that's not all of it. We also compromise our national security when we let other countries overtake us on hydrogen. What'd you think will power the agile weapons of the future? Or the upcoming military robots? No, batteries alone won't do it -- too heavy and need time and generators to recharge.

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.