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

  • Monday, 1st September 2025 Posted 9 months ago in by Phil Alsop

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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