225B Bath Road
Slough, UK

London IV

CyrusOne London IV is a brand new purpose-built state-of-the-art data center offering cloud providers, systems integrators and multinational corporations customized, secure, and resilient data center solutions within a key business hub.

Strategically located in Slough, one of the UK’s premier data center locations, the facility will ultimately deliver 10,353 sq m (111,444 sq ft) of world-class technical space with an IT load of 18 MW.

CyrusOne Data Center,
225B Bath Road, Slough SL1 5PP
United Kingdom

London IV – Highlights

  • Overview
  • Power
  • Cooling
  • Security
  • Fire Protection
  • Amenities

  • 10,353 sq m (111,444 sq ft) of technical space within one building on two floors
  • 18 MW IT load to the facility
  • Highly resilient, concurrently maintainable power and cooling to Tier III
  • Dedicated electrical plant to each floor
  • Low PUE through the use of free cooling chillers
  • 900 mm heavy duty raised floor with 3,600 mm clear height in the data hall
  • Active / Active dual redundant power supplies of 27 MVA
  • Carrier neutrality and diverse fiber connectivity from multiple providers
  • Secure managed delivery bay with 3 tonne goods lift
  • Multi-layer industry-leading levels of physical and electronic security with 24/7 year round onsite support

London cooling photo.

  • Cooling configured on a resilient ring chilled water system
  • 5MW IT capacity cooling solution
  • N+1 Free cooling air-cooled chillers
  • Computer Room Air Handing Units at N+25%
  • Circulation pumps N+1
  • Low PUE due to cooling solution and optimum chilled water temperatures to maximize the free cooling hours
  • Cooling infrastructure individually managed and linked to BMS
  • Independently regulated temperature and humidity
  • Power Supplies to cooling equipment for full redundancy configured in a distributed redundant topology

Fire extinguisher photo of London IV facility.

  • Three stage fire detection systems into data halls and UPS plant areas
  • VESDA (Very Early Smoke Detection Apparatus) in data halls and UPS plant rooms for early warning
  • Fire detection in all rooms, ceiling return air plenums and in voids as required
  • Nitrogen filled pre-action sprinkler system to data halls and UPS rooms
  • Double knock approach sprinkler system to all areas, zone activation
  • Fire detection and suppression systems interconnected to central BMS
  • Mains power supplied via 100% rated A&B 33 kV incomers diversely routed active/active with a capacity of 27 MVA
  • All IT power metered and charged as consumed
  • 5 MW distributed redundant topology with 4 independent and compartmentalized blocks
  • 99.9% reliability with the ability for concurrent maintainability
  • IT power supplies are derived from primary and reserve feeds from each block via STS’s creating a meshed IT distribution topology between all 4 blocks
  • Distributed redundant UPS topology with 10-minute battery back-up as standard two UPS systems per block
  • Fully rated distributed redundant LV back-up generators with 48-hour fuel autonomy, capable of continuous running
  • Re-fueling contracts to ensure timely replacement

Power source photo inside London four facility.

  • 3-meter-high secure perimeter fence to CPNI base specification
  • External CCTV
  • PAS68 rated gates to protect from vehicle attack
  • 24/7 year-round on-site security located in secure control room
  • Extensive CCTV and access control throughout the facility
  • Progressive layers of security to restrict access through the site
  • Mantraps with biometric readers into data halls if required

Photo of security fence at London four facility.

  • Power and building monitoring systems to provide alarms
  • Power surge management
  • 24/7 year-round on-site M&E engineers undertaking Planned Preventative Maintenance (PPM) programs
  • Real-time monitoring of electrical and mechanical systems

Hallway photo of London IV facility.

  • Regional Water Stress: The London area currently faces high water stress, which is projected to continue in the future.
Water Risk and Use Now 2030 Projection 2040 Projection
Regional Water Stress High High High

(Risk assessment and projections based on WRI Aqueduct Tool)

  • Regional Grid Greenhouse Gases: How much greenhouse gas does this facility’s local electrical grid emit while generating electricity? (Useful for Location-based greenhouse gas reporting)
Greenhouse Gases 2004 2008 2014 2018
MTCO2/MWh 0.497 0.497 0.412 0.278

The carbon-intensity of United Kingdom’s grid has improved about 3.1% points per year over the last 14 years of published data. (2004-1014 data from European Environment Agency, 2018 data from “The European Power Sector in 2018“)

  • Regional Grid Renewables: What percentage of this facility’s local electrical grid is from renewable sources (wind, solar, biomass, hydro, and geothermal)?
Grid Renewables 2004 2008 2012 2016
Percent from renewable sources 3.6% 5.6% 11.3% 24.5%

This has been increasing about 1.7% points per year over the last 12 years of published data. (Data from the European Environment Agency.)

  • Other Features: Onsite electric vehicle charging points

Virtual Tour