09.05.2023
Hydrogen project: DSW21 participates in 'H2Hamm'
The public utility company Stadtwerke Dortmund (DSW21) has joined the Wasserstoffzentrum Hamm (Hamm Hydrogen Centre) as a further partner.

Source: energate

In the first municipal joint project of its kind, the Dortmund-based company is taking over 20 per cent of the shares previously held by Trianel. The municipal utility cooperation launched the project together with Stadtwerke Hamm in autumn 2021. Both partners originally held 50 per cent of the shares each. In January 2023, Trianel gave 20 per cent to Stadtwerke Bochum, and now a further 20 per cent will go to DSW21. The planned electrolyser is to be built at the site of the Trianel gas-fired power plant in Hamm.

Guntram Pehlke, CEO of DSW21, explained that Dortmund's decision to join the H2Hamm project was a logical one. On the one hand, it is about expanding the renewable energy portfolio. On the other hand, the utility wants to secure the necessary amounts of hydrogen for the city's public transport. As DSW21 is focusing on fuel cell propulsion in addition to electric mobility, the construction of two H2 refuelling stations for buses and barges is currently being examined, he said.

Twenty MW for green hydrogen

On the site of the Trianel gas-fired power plant in Hamm-Uentrop, an electrolyser with a capacity of 20 MW is to be built for the production of green hydrogen. With a planned 4,000 full-load hours, the plant will produce around 1,500 tonnes of hydrogen per year. Sven Becker, spokesman for Trianel's management, said the plant could be scaled up in the future. Further investments are not ruled out. The Arnsberg district government is currently carrying out an approval procedure under the Federal Immission Control Act (BImSCHG). "We are currently learning together how the first approval for an electrolyser works," Hamm's mayor Marc Herter (Social Democratic Party) told journalists. The project partners expect the construction decision to be made in 2024, and in the best case scenario, green hydrogen should then be produced at the Hamm site from 2025.

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