Data center Frankfurt, Germany

Project details

Location: Frankfurt am Main, Germany
Project type: Large-scale data center construction
Application: Temporary power supply for multiple tower cranes
Installed system: Neargrid Boost 200
Number of tower cranes: 5 (WOLFF 8095.40, WOLFF 8076, 2× WOLFF 8095.25 + additional crane)

Challenge:

multiple tower cranes, limited grid connection

Like many German urban regions, Frankfurt struggles with grid congestion and limited connection capacity. For this data center project, the available grid connection was insufficient to allow five tower cranes to operate simultaneously.

The main contractor was confronted with:

• Limited network capacity
• High power peaks during lifting movements
• No tolerance for voltage drops
• No time to wait for grid reinforcement
• No time to wait for Trafohaus and expensive cable laying
• The need to operate without diesel generators

Continuity is crucial in data center construction. Any delay has a direct impact on planning and budget.

The question was clear:
How can multiple tower cranes be operated reliably on a limited power supply?

Solution:

Battery for tower cranes, immediately usable as peak load compensation

Neargrid installed Boost 200 high-power battery systems as a temporary power supply for the construction site.

The operation is simple but well thought out:

• The grid connection provides the base load.
• The battery system absorbs the power peaks of the tower cranes.
• Voltage stability remains guaranteed
• Deep discharge is avoided

This configuration allowed five tower cranes to operate simultaneously without the need for heavy additional infrastructure.

There was:

• No temporary transformer station required
• No extensive cable routes across the yard
• No diesel generators
• No waiting time for grid reinforcement

Construction could begin immediately.

Result: emission-free and stable construction site in Frankfurt

✔ 5 tower cranes operating simultaneously
✔ Stable voltage during heavy lifting cycles
✔ No power outages
✔ No diesel consumption
✔ No temporary transformer cabin
✔ Faster start-up of the construction site

This project proves that a battery for tower cranes is a realistic alternative to diesel generators, even in energy-intensive infrastructure projects such as data centers.

Why this is relevant for German construction companies

In Germany, grid connections are increasingly becoming a limiting factor for large construction projects. At the same time, emission requirements and sustainability targets are increasing.

For class 7–8 contractors, this means:

• Less dependence on grid reinforcement
• Lower operational risks
• Better control over energy planning
• Lower CO₂ emissions on the construction site
• Planning certainty for inner-city projects

A battery solution for tower cranes makes it possible to:

• Operating multiple cranes with limited network capacity
• Eliminating diesel generators
• Protecting construction time from energy-related delays

Interested in a technical site analysis?

Would you like to know how many tower cranes you can operate on your existing grid connection?

Have your site data analyzed and discover:

• Power profile of your tower cranes
• Required battery capacity
• ROI compared to diesel generators
• Impact on CO₂ reduction

👉 Request a no-obligation energy analysis.

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