Press release -
Green Mountain and Hima Seafood launch groundbreaking heat reuse project
Green Mountain and Hima Seafood yesterday marked the launch of their joint excess‑heat reuse project in Rjukan, Norway. The initiative represents an innovative industrial collaboration that combines sustainable data center operations with land‑based trout farming. The Norwegian Minister of Digitalisation and Public Governance officiated the opening.
In this project, Hima Seafood will use excess heat from Green Mountain’s data center to warm the water in its aquaculture systems. After use, the cooled water can be returned to Green Mountain and integrated into its cooling processes. This closed‑loop energy system reduces energy consumption and environmental impact for both companies, offering a practical demonstration of circular economy principles in action.
Construction and installation work have been completed, and the system went operational in autumn 2025. In the current phase, the heat‑reuse system is being tested with a capacity of up to 1.75 MW while the parties conduct a joint feasibility study to build operating experience. Insights from this first phase will guide phase two, which aims to scale the system to 8 MW.
- Waste heat is only waste heat if it goes to waste, says Annar Bøhn, CEO of Hima Seafood. - By utilizing excess heat from Green Mountain, we reduce our energy consumption, minimize our environmental footprint, and strengthen the robustness of our operations. This is a clear win‑win solution.
- The collaboration between Green Mountain and Hima Seafood demonstrates how data center and aquaculture industries can create tangible circular‑economy benefits, reduce their climate footprint, and drive new value creation in rural regions — with Rjukan as an international showcase, says Torkild Follaug, Sustainability Director at Green Mountain.
The project launch was marked with an event at Hima Seafood’s facility in Rjukan. The Minister of Digitalisation and Public Governance, Karianne Tung, Mayor of Tinn Municipality, Kathrine Haatvedt, and County Mayor of Telemark, Sven Tore Løkslid, attended the event.
After the visit, Minister Tung stated:
- Norway relies on a secure and robust digital infrastructure, and data centers are a critical part of that foundation. That is why the government wants data centers located in Norway, but we also expect the industry to contribute to a greener future. Here in Rjukan, we see a strong collaboration between Green Mountain and Hima Seafood. This is a perfect symbiosis between data centers and new industry, and exactly the kind of partnership we want to see in more data centers.
Related links
Topics
Categories
Green Mountain designs, builds and operates highly secure, innovative and sustainable data centers in Norway and the UK. The data centers are powered by low-cost, 100 percent renewable power and are world-leading on energy efficiency.
The company currently operates the following data center locations: SVG-Rennesøy near Stavanger, TEL-Rjukan in Telemark, the OSL-Enebakk data center near Oslo and Norway’s largest data center campus at Hamar (OSL-Hamar) . In addition, a data center in London (LON-East) was established through the acquisition of an existing company. It is located in one of the most important data center hubs in the world. Furthermore, Green Mountain has partnered with German power company KMW to establish a new data center in the Frankfurt region.(FRA-Mainz)
Green Mountain serves a diverse portfolio of international clients, including major players in cloud computing, banking/finance, high-performance computing (HPC), and the automotive industry.
