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Green Mountain and KMW top out data center outside Frankfurt, Germany

By District Energy posted 02-10-2025 12:50

  

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Summary

Norwegian data center operator Green Mountain and German power company KMW have topped out a data center in Mainz, outside Frankfurt, Germany.

Located on Ingelheimer Aue, next to the KMW power plants, the 25,000 sqm (269,095 sq ft) data center will offer 18MW of capacity.

At full build-out, the campus will offer 54MW across three buildings, though further details of the other facilities have not been shared.

The campus will be fully powered by renewable energy and provide up to 60MW of heat for 20,000 households.

Green Mountain and KMW partnered in a joint venture at the beginning of 2023 for the project, with construction beginning in October of the same year.

“With green electricity, Rhine water cooling, district heating utilization, and a PUE value below 1.3, we are creating a data center here that is both sustainably and technologically pioneering,” said Oliver Malerius, CEO of KMW.

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