The challenge

UZ Gent' s UPSIE BU2 project required a reliable and emission-free power supply for two large tower cranes: a WOLFF 8033 and a Liebherr LC450.
Both cranes required significant power peaks, which would normally require a grid upgrade or heavy diesel generator.

Goal: Run the cranes simultaneously with minimum grid load and maximum energy efficiency.

The solution

In cooperation with STRABAG, Neargrid supplied a Boost 200 kVA yard battery that acts as a buffer between the grid and the yard consumers.
The battery is powered via a 63A grid connection and provides enough power at peak times to run both tower cranes simultaneously.

Without battery storage, the cranes would each demand 89 kVA from the grid, good for a total peak demand of ±180 kVA.
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Thanks to the Neargrid setup:

• peak load is handled,
• the continuous power remains stable,
• and the grid is significantly relieved.

The result

The Boost 200 configuration leads to a significant reduction in fuel consumption, CO₂ emissions and noise emissions.
The yard has a reliable, quiet power supply without oversizing grid or generator capacity.

Specifically:

• 2 tower cranes powered via 1 battery arrangement
• Connection: 63A
• Power: 200 kVA continuous
• Peak power: up to 400 kVA
• CO₂ reduction: >80% vs. diesel generator
• Noise reduction: >90%
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‍"The yard needs to have the right power at all times. With a traditional power group you always run risks, but with Neargrid's battery the power supply is guaranteed to be quiet, reliable and completely emission-free."
- Project Manager Jan Dens , STRABAG‍

‍"On the UZ Gent site, we combine several heavy-power installations on one 200 kVA battery. Even at peak loads, everything remains stable : the battery absorbs the peaks effortlessly without any additional connection or delay."
Project Manager Mathias Van Gastel, STRABAG

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