Siemens Gamesa tests hydrogen production from wind turbine in ‘island mode’

December 28, 2020

In a bid to decarbonize heavy industries, Siemens Gamesa is installing the first system in the world capable of producing green hydrogen directly with a wind turbine, with no connection to the grid, known as in ‘island mode’.

This represents a strategic step towards delivering large-scale green hydrogen from the mid-2020s onwards.

Green hydrogen represents a massive opportunity for the green transition by driving the transformation of the energy system: green hydrogen can be produced anywhere and used in sectors that are very difficult to decarbonize, such as aviation and shipping, as well as heavy industry, such as iron and steel, chemicals and glass. Hydrogen can go a long way to reducing emissions at a national and company level.

Long-term forecasts from various industry sources point to hydrogen growing exponentially over the coming decades as transport and heavy industry decarbonize, requiring between 1,000GW and 4,000GW of renewable capacity by 2050 to meet demand, which highlights the vast potential for growth in wind power.

“Green hydrogen has the potential to be a game-changer in the quest to decarbonize the power supply and solve the climate crisis. Our wind turbines are already making a huge contribution to this effort by providing clean electricity to the grid but, with the storage potential of hydrogen, we can start addressing other key industries. This is an exciting project and I’m proud that the ingenuity and commitment of our people is enabling Siemens Gamesa to take the lead. This is the future,” said Andreas Nauen, Siemens Gamesa CEO.

Brande hydrogen pilot project

This is the first pilot project in the world to connect a wind turbine to an electrolyzer with the ability to operate in ‘island mode’, i.e. driving an electrolysis rig with no link to an electricity grid.

The pilot is now under development close to Siemens Gamesa’s Danish headquarters in Brande, western Denmark. It includes a 3MW Siemens Gamesa wind turbine owned by local partner Uhre Windpower, that will produce clean electricity to power a 400kW electrolyzer. This machine splits water into oxygen and hydrogen, so that the hydrogen can be stored and later delivered to customers in the mobility sector.

The project is close to obtaining final permits; the first test runs are planned for December 2020 and hydrogen production should start by January 2021.

Siemens Gamesa recently signed an agreement with Danish company Everfuel, which will distribute the 100% green hydrogen produced by the facility to refueling stations across Denmark, for example in Copenhagen, where it will be used to fuel taxis.

When fully operational, the project’s single turbine will produce enough hydrogen to fuel around 50-70 taxis each day. Carbon-free hydrogen, derived from low-cost, competitive wind power, can be stored and transported for use on demand. This facility will provide insights that will be crucial to scaling up the technology to much larger turbines and wind farms both on land and at sea.