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Sheet CC—A011 · Site plan · Scale 1:500 at A1

1.8 acres in Ambattur, laid out.

Pick anything on the plan to read what it is and what it is sized for. The level stack on the right is the same building seen the other way — plant on the ground, a hall on each floor above it, plant again on the roof.

Infrastructure and operating model

Five systems, and what each one is sized against.

Every figure here is design intent for the 1,200 kW IT load the two halls are drawn for. N+1 describes a unit count, not an availability promise.

S01
Utility supply — Two 11 kV feeders, separate incomers

Independent incoming feeders terminate in separate HT panels. Three 1,250 kVA transformers feed the LT boards, arranged N+1 against the 1.2 MW design IT load.

Incomers2 × 11 kV
Transformers3 × 1,250 kVA (N+1)
Design IT load1,200 kW
Design intent
S02
Standby generation — Three 1,000 kVA sets, N+1

Three diesel sets in acoustic enclosures in the north yard. Two carry the full facility load; the third is the redundant unit. Bulk fuel storage is sized for 48 hours at design load, with a refuelling arrangement to be contracted before handover.

Sets3 × 1,000 kVA (N+1)
Bulk fuel2 × 20,000 L
Design autonomy48 h at design load
Design intent
S03
UPS and battery — Three 800 kVA modules, N+1

Modular UPS on Level 0 feeds two independent A and B paths to every cabinet. Battery autonomy is sized to carry the design IT load while the generators pick up.

Modules3 × 800 kVA (N+1)
Battery autonomy10 min at design load
DistributionA + B feeds to every rack
Design intent
S04
Chilled water — Three 200 TR chillers, N+1

Chillers and pumps sit on the roof plant deck. Chilled water drops to CRAH units at the end of each hall row; the high-density positions add an in-row unit inside the containment.

Chillers3 × 200 TR (N+1)
DistributionDual headers, ring main
ContainmentCold aisle, every aisle
Design intent
S05
Connectivity — Two diverse fibre entries

Fibre enters through chambers at the north and south boundaries and runs in separate routes to the meet-me room on Level 0. The room is planned as carrier-neutral; carriers are not contracted at concept stage.

Entries2 (north, south)
Meet-me roomLevel 0, carrier-neutral (proposed)
Rack uplinksFibre pairs to the meet-me room
Design intent
How the building is stacked

Four levels, each with one job.

Plant, transformers, UPS and battery rooms, meet-me room, securityLevel 0
Hall A — 96 racks in 8 rows of 12Level 1
Hall B — 96 racks in 8 rows of 12Level 2
Plant deck — chillers, pumps, cooling headersRoof

Work out what you would need in Hall A ↗