Press release -
Green Mountain and KMW secure 36 MW anchor tenant for FRA-Mainz data center campus
Green Mountain and German energy provider KMW have signed a long-term agreement with an international company for 36 MW of data center capacity at the new FRA-Mainz campus, now under construction near Frankfurt.
A flagship in sustainable infrastructure
The FRA-Mainz campus (a 50/50 joint venture between Green Mountain, an Azrieli Group company, and KMW) sets a new standard for environmental performance:
- The site will be powered by 100% renewable energy from KMW’s wind and solar portfolio.
- Gas-turbine emergency power replaces traditional diesel backup.
- Efficient cooling will be provided by the nearby Rhine River as a cooling source.
- Surplus heat from the facility will feed Mainz’s district-heating network via heat-pump technology, serving up to 20 000 households, the Mainz Cathedral, and Mewa Arena.
Together, these measures will ensure minimal CO₂ emissions and a strong commitment to environmental responsibility.
“This anchor agreement demonstrates the trust global market leaders place in our delivery model and our commitment to truly sustainable, large-scale data center infrastructure,” said Svein Atle Hagaseth, EVP & Chief Business Officer, Green Mountain Global.
Capacity will be handed over in stages across roughly 3.5 years.
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About Green Mountain:
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 and the OSL-Enebakk data center about 20 km outside of Oslo. In addition, a data center in London (LON-East) was established through the acquisition of an existing company. Furthermore, Green Mountain recently completed Norway’s largest data center campus at Hamar (OSL-Hamar) and have partnered with German power company KMW to establish a new data center in the Frankfurt region.(FRA-Mainz)
Existing customers include large international companies within cloud, banking/finance, HPC, automotive and more.
About KMW:
KMW is a municipal, regionally rooted producer of electricity, steam, and district heating. Since 1931, the company has reliably supplied the Mainz-Wiesbaden metropolitan area with energy. With their high availability and excellent efficiency, the power plants on Ingelheimer Aue are among the most efficient plants worldwide. Nearly 500 employees at KMW ensure the reliable energy supply of the region.
In addition to conventional energy production, KMW has secured important business areas in renewable energies, energy management, and hydrogen in recent years. The investment in a data center strategically continues the diversification of KMW's business model. Mainzer Stadtwerke AG and ESWE Versorgungs AG are shareholders of KMW, each holding a 50 percent stake.
