As part of our continued infrastructure upgrades following the April 9 utility power maintenance, we will be performing critical work on Saturday, May 3, 2025. During this window, we will migrate Power Feed A at DFDC The Hague to a newly deployed UPS cluster.

This activity is part of a broader effort to increase power system redundancy and prepare the facility for our upcoming tier-3 design implementation.

No interruption to Feed A is anticipated. However, Feed A will be temporarily unprotected during the migration. Customers with dual power feeds and operating on UPS Cluster B will remain fully protected throughout the maintenance.

Maintenance Schedule (CEST):
07:00 AM – Isolate Power Feed A from current UPS infrastructure [DFDC/Electrical]
08:30 AM – Transition Feed A to new UPS cluster [DFDC/Electrical/Facilities]
09:30 AM – Conduct load verification, battery checks, and confirm system status [DFDC/Electrical]
10:00 AM – Close maintenance window [DFDC]

On-Site Access & Customer Presence:
We recommend minimizing on-site activity during the maintenance period. Customers with a need for on-site engineering support are advised to coordinate with our operations team in advance.

Should you have any questions or specific concerns regarding this maintenance, please feel free to contact our support team.

We appreciate your continued cooperation and understanding as we improve the resiliency and capacity of our critical infrastructure.

DFDC The Hague - UPS-A

We would like to inform you of a critical maintenance window at our DFDC The Hague data center scheduled for Wednesday, April 9, 2025. During this maintenance, we will be transitioning all utility power to a set of parallel generators while decommissioning our existing 10kV 400kVA utility power feed and bringing the first of two 1.75MW 23kV utility power feeds into service.

This maintenance has been carefully planned and will be executed following a Method of Procedure (MOP) reviewed by all stakeholders. Qualified personnel and stakeholders will be on-site to oversee the transition. Our generators will be operating in an N+1 configuration to ensure redundancy and mitigate any potential service impact.

Maintenance Schedule (CET):
06:30 AM – Shift all power to generators [DFDC/Generator]
07:15 AM – Decommission existing low-voltage feed from transformer to main distribution board [Utility Company]
08:00 AM – Prepare tie-in for new transformer to main distribution board [DFDC/Electrical]
10:00 AM – Bring new 2MW transformer into service [Utility/DFDC/Transformer]
11:30 AM – Conduct preliminary checks, switch load from generators to the new transformer, and continue monitoring [DFDC/Transformer/Generator]
12:00 PM - Monitor infrastructure [DFDC/Electrical]
03:00 PM – Close maintenance window [DFDC]

On-Site Access & Customer Presence:
Access to common areas, the parking lot, and the loading bay will be restricted during the maintenance window. We kindly request that customers minimize on-site presence where possible. However, if you wish to have engineers on-site for monitoring, we can provide temporary workspaces for their use.

If you have any questions or require additional information, please do not hesitate to reach out to our support team.

Thank you for your cooperation and understanding as we work to enhance the reliability and capacity of our power infrastructure.

DFDC The Hague

For safety and convenience, access through the Moezel 5 entrance is temporarily suspended. Visitors are kindly asked to use the Moezel 3 entrance instead.

Please contact our NOC upon arrival at +31(0)88-2700-202 for assistance.

We expect the Moezel 5 entrance to be fully accessible again by Monday at 10:00 AM.

DFDC The Hague