Nobian has officially opened a fully electrified salt production facility in Mariager, marking a major step in the company’s shift away from gas-powered production and toward low-carbon industrial operations.
The new installation, based on mechanical vapor recompression (MVR) technology, has been operational since January 2026. It replaces gas-fired steam with electricity by compressing and reusing process steam inside the system—functioning like an industrial heat pump.
The result is a more energy-efficient process that reduces overall energy use and cuts CO₂ emissions, while increasing site capacity by roughly 60%.
The expansion also significantly strengthens Nobian Dansk Salt’s position as a key supplier of high-purity vacuum salt in Europe. At full potential, the Mariager site can now reach up to one million tons of annual production.
The opening coincides with a symbolic milestone: 60 years since the first brine delivery from the Hvornum salt dome to Mariager, underscoring the site’s long industrial history in Denmark’s salt sector.
Michael Koenig, CEO of Nobian, said: “This investment marks a major next step in electrified and sustainable salt production in Mariager and reflects our confidence in the site's future. It reduces energy use and CO₂ emissions, supports our customers' decarbonization ambitions, and supports flexibility in the local energy system.
"At the same time, this investment reinforces local employment, and strategic industrial value chains. It also contributes to Denmark’s and Europe’s capacity to produce essential raw materials, such as salt, and the development of underground energy storage in salt caverns.”
The MVR system builds on earlier electrification at the site, including a 37 MW electric boiler installed in 2022. Together, these technologies allow the facility to better align electricity demand with renewable energy availability, improving grid flexibility and supporting wind and solar integration.
Nobian says the Mariager upgrade is part of a broader strategy to scale low-carbon production across its operations while securing essential materials for industries ranging from food and water treatment to automotive and battery value chains.
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