datacenterHawk

Unlocking the Future of Data Center Connectivity with Telehouse

Jul 2, 2025
Mark Pestridge, Executive Vice President and General Manager of Telehouse Europe, shares insights from one of Europe's pioneering data center operators. He discusses how Telehouse evolved from its modest beginnings to a connectivity powerhouse in London's Docklands. The conversation highlights the push for higher rack densities, innovative cooling solutions, and the integration of renewable energy to meet growing demands. Mark also emphasizes community outreach and partnerships, shaping a sustainable future for data centers.
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INSIGHT

Legacy Built Around Dense Interconnection

  • Telehouse grew from a single 0.5kW-per-rack site in 1989 to a five-building interconnected London campus with huge peering density.
  • Its Docklands location creates a virtual campus that reduces long-distance interconnection costs for customers.
INSIGHT

City Constraints Drive Complex Engineering

  • Urban, built-up constraints force Telehouse to build vertically and excavate deep to support heavy infrastructure loads.
  • Retrofitting existing buildings costs more engineering effort but reduces environmental impact versus demolition and rebuild.
ADVICE

Design For Mixed Cooling From Day One

  • Design new halls to support mixed cooling: traditional air, rear-door or direct-to-chip liquid options, and future submersion systems.
  • Future-proof by planning for higher rack densities and flexible cooling mixes rather than a single cooling standard.
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