Stellium 1

Design resilience tier

III

Redundancy (as published)

There are dual 40 MVA feeds coming from the 275kV national grid delivering N+N capability to data centre 1 - Sector 1. Each sector (data hall) operates off its own independent power and cooling infrastructure. There is N+N redundancy of Uninterruptable Power Supplies (UPS). UPS is a 2N redundant system as per IEEE Std. 3006.7-2013. N+1 redundant generators for the entire site power including the IT load & mechanical load. N+N power is provided to customer racks. The PDUs/RPPs are of 2N (A&B) configuration with diverse routes and location. Our cooling has redundancy of N+1 on the central chillers and N+4 on the down-flow cooling units. System is 100% concurrently maintainable at every bus with dual corded IT load. Our colocation data centres meets all Tier 3+ requirements of concurrent maintainability, diverse engineering and avoidance of single points of failure. We have on-site diesel storage which is sufficient for 48 continuous operation on full load.

Max. rack density

4–50 kW/rack · up to 100 kW liquid-cooled

Density (as published)

Rack cooling from 4 kw to 50 kw (scalable to 100 kw) (FAQs); 11MW IT power delivering 8kW racks (3kW per square metre) across each data hall, with a local capability of up to 50kW per rack; HPC cooling of client racks from 10 to 100kW using in-row/rear door chilled water cooling; Bespoke designs available for fully immersive cooling up to 200kW per rack can be supported; N+ N 230/400V power feeds to racks via tap off units in 16A, 32A, 63A in single or 3 phase configuration

Power band

5-20MW

Cooling

Air cooling, Free cooling, Rear-door heat exchanger, Immersion

Availability

Available

Cross-connect

On request

Renewable power

100% renewable power

Design PUE

Design PUE 1.2–1.4

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