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Green Mountain and KMW secure 36 MW anchor tenant for FRA-Mainz

FRA-Mainz data center outside Frankfurt.

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.

From the roof of Green Mountain and KMW data center in Mainz
From the topping-out ceremony in February 2025.