Mainz Data Centre

Project Overview

Mainz Data Centre is one of the most modern and sustainable data centers in Europe, located in Mainz, Germany. The first of three data center buildings on a site area of 25,000 square meters, which will house a total output of 54 MW on 18,000 square meters of whitespace.

This facility is directly connected to Mainz's district heating network, transforming digital heat into green heat. The data center heats cooling water to around 30°C, a large heat pump raises the temperature to up to 125°C, and the heat is fed into Mainz's district heating network via heat exchangers. The system provides up to 60 MW of waste heat for the Mainz district heating network, making a significant contribution to the decarbonization of district heating.

The data center operates with green electricity from renewable energy sources and features Rhine water cooling. The emergency power supply is provided by on-site power plants, eliminating the need for expensive and climate-damaging diesel generators, making the data center emission-free.

Built exclusively to Level 3 standards, all systems are redundant, ensuring extremely high availability. The strategic proximity to the Mainz Internet Exchange (DE-CIX) and optimal location on the Ingelheimer Aue provide excellent connectivity and infrastructure advantages.