Green Mountain FRA1-Mainz

Green Mountain and German Power Company KMW have teamed up in a joint venture to build a new 54 MW data center site in Mainz, just 30 km outside Frankfurt. The three planned data center buildings will be built in an established industrial area adjacent to KMW’s existing power plants. The site can support both multi-tenant customers as well as provide dedicated buildings for larger client installations. Located in the Rhine/Main area, the site benefits from its proximity to one of the world's largest internet hubs in Frankfurt.

- Power Capacity: 54 MW (80 MW in 2026)
- 100% renewable energy from KMW's portfolio of wind and solar power
- Cooling system implementing water from the Rhine river
- Emergency Power supplied by gas turbines instead of diesel generators
- Waste heat fed to the adjacent district heating plant
- Redundant 110 kV grid supplies