Green Mountain and KMW to Build 54 MW Sustainable Data Center Near Frankfurt

Norwegian data center company, Green Mountain, has teamed up with local energy firm, KMW, to establish a new 54 MW data center site in Mainz, 30 km from Frankfurt. The project will comprise of three buildings, with both companies having a 50% stake in the joint venture.


  • The FRA1-Mainz data center project is a joint venture between Green Mountain and KMW.
  • The data center will utilize renewable energy sources from KMW's portfolio and be cooled by the nearby Rhine River.
  • The waste heat generated by the data center will be fed into the Mainz district heating system.

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Green Mountain and KMW to Build 54 MW Sustainable Data Center Near Frankfurt

Green Mountain, a Norwegian data center company, has agreed with the local energy company, KMW (Kraftwerke Mainz-Wiesbaden), to establish a new 54 MW data center site in Mainz, 30 km outside Frankfurt. Both companies have formed a new joint venture (JV) to develop the campus with a 50:50 stake. The data center will be backed by renewable energy sources from KMW and operated according to high sustainability standards.

Also Read: Green Mountain Announces Completion of Its Data Center Expansion in Oslo

Three Buildings Planned

Three buildings are planned at the 25,000 sqm site named FRA1-Mainz, and situated in an already existing industrial area adjacent to KMW's power plants. Local authorities have approved the building application, and construction will start in Q3 2023. This location has the ability to accommodate both multi-tenant agreements and dedicated facilities for larger client installations.

According to the statement by the company, the FRA1-Mainz site has all the necessary conditions in place to establish itself as one of the most environmentally-friendly data centers in the world.

  1. KMW's renewable energy portfolio covers the power supply.
  2. It will be cooled by the adjacent Rhine River, making it very energy efficient with a PUE below 1.3.
  3. The KMW gas plant will supply the backup power, making diesel generators for emergency power redundant.
  4. Strong connectivity is secured with a location close to the Frankfurt DE-CIX hub.
  5. Up to 60 MW of waste heat will be fed into the Mainz district heating system, making sure the precious energy resources are used optimally. This district heating grid supplies up to 1000 properties in the city.

Also Read: EdgeCore Expands Its Presence in Northern Virginia

This facility is a large and long-term project in Mainz, and with this partnership, Green Mountain continues its pan-European growth strategy.

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Telecom Analyst

Passionately following the Indian #Telecom Industry for over a decade from Business, Consumer and a Technical perspective. My primary focus area is Consumer & Digital Experience.

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