Digital Realty Data Halls, Redhill
Building a complex of turnkey data centres at Digital Realty Trust's development in Redhill.
This development involved the construction of data centres S120, S130, S140, S150 and S160. They range in size from 11,000 sq. ft to 1,484 sq. ft and are constructed using proprietary pods that provide power, cooling security and fire suppression. Each turnkey space can scale from hundreds of kilowatts to megawatts of IT load.
Key points
Scope of Construction
The development included the construction of five data centres, designated S120, S130, S140, S150, and S160. These facilities vary in size, ranging from 11,000 square feet to 1,484 square feet. Each centre is built using proprietary pods that integrate essential infrastructure such as power, cooling, security, and fire suppression systems. The turnkey design allows each space to scale from hundreds of kilowatts to several megawatts of IT load, offering flexibility and resilience.
Power Infrastructure
Each data centre comprises three types of pods, all of which are powered by EDF through 11KV service runs. The 1,440KW pods are supported by a 3.0 MVA capacity, the 720KW pods by 1.5 MVA, and the 2,160KW pods by 4.5 MVA. To ensure continuous operation, each pod is equipped with multiple diesel generators configured with an N+1 redundancy model. The central power system is underpinned by a series of uninterruptible power supply (UPS) modules arranged in a fully redundant 2N configuration, ensuring high availability and reliability.
Cooling Systems
The cooling infrastructure for each data centre is designed to deliver peak performance under heavy IT loads. Air-cooled chillers are installed for each centre, with the number of units varying by pod size. The 2,160KW pods are supported by four 950KW air-cooled chillers, the 1,440KW pods by three, and the 720KW pods by two. All chillers are configured with N+1 redundancy. These systems work in conjunction with 90KW computer room air handler (CRAH) units, which are set up in an N+2 configuration for each pod, ensuring efficient heat rejection and operational stability.
