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WITCOM modernizes existing data center with Vertiv’s thermal solutions to achieve target PUE level

December 12, 2025

Background

WITCOM, a subsidiary of ESWE Versorgungs AG, headquartered in Wiesbaden, Germany, operates critical telecommunications infrastructure for enterprise clients, government agencies, and national carriers.

Serving organizations where downtime isn’t an option, WITCOM specializes in secure data center solutions, colocation, and fiber-optic connectivity. With mission-critical operations at stake, WITCOM’s customers demand carrier-grade availability, robust security, and strict regulatory compliance from its IT infrastructure partner.

Results

  • Increased safety standards by changing from N+1 to N+N.
  • Reduced energy consumption through optimized thermal management and improved PUE.
  • Predominant use of free cooling capacity based on ambient conditions thanks to high Delta T configuration and increased chilled water temperature to ~25 °C.
  • CRAH units with High Delta T configuration of ~25/35 degrees, indicating the temperature difference between the inlet and outlet of the chiller or climate control cabinet, featuring double heat exchangers for maximum security and low space requirements.
Case Summary
Location:

Wiesbaden, Germany

Vertiv Solution:
  • Vertiv™ Liebert® AFC Chiller Low-GWP Inverter Screw
  • Vertiv™ Liebert® PCW High DT Dual Coil

DOWNLOAD THE CASE STUDY

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