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Facility record · Verified 26 Oct 2026

NTT Bengaluru 2 — Electronic City, KarnatakaNTT Global Data Centers · Plot 88/A, S V R Platinum, Electronic City Phase 1, Bengaluru · 4.5 MW critical IT load · 7.5 MW facility load

Record PRJ-170Karnataka — BengaluruTier A — operator-stated5 public sources checkedAdditive: yes — 4.5 MW counted
Both halves publishedCounted in full1.67 ratio, highest in the estateDated operator pageOne of two additive Karnataka records
4.5MW
Critical IT load
7.5MW
Total facility load
1.67
Facility-to-IT ratio
3MW
Plant and losses
16.5MW
NTT additive in Karnataka
18%
Of Karnataka's 90.7 MW

NTT Bengaluru 2 in Electronic City carries 4.5 MW of critical IT load inside 7.5 MW of total facility load. Both figures are published by the operator, which means the ratio can be computed rather than assumed: 1.67. That is the only NTT building in this registry whose published halves sit above the operator’s own 1.5 house standard. NAV1A is 1.50, Mumbai 7 is 1.48, Bengaluru 4 is 1.49. This one is 1.67, and the reason is arithmetic rather than engineering: at 4.5 MW the fixed plant does not scale down. It is also one of only two additive NTT records in Karnataka. Together with Bengaluru 3 they are 16.5 MW, against a state this registry counts at 90.7 MW.

1At a glance

Operator
NTT Global Data Centers — NTT DATA, formerly Netmagic
Facility
Bengaluru 2, Plot 88/A S V R Platinum, Electronic City Phase 1, Bengaluru
Capacity
4.5 MW critical IT load — operator-stated
Facility load
7.5 MW — operator-stated on the same page
Ratio
1.67 — 7.5 divided by 4.5
Plant and losses
3.0 MW behind 4.5 MW of rentable load
Stage
Operational — listed live by the operator
Additivity
Additive. 4.5 MW counted; one of two additive NTT records in Karnataka
Racks, floor, PUE
Not published for this building

2The only 1.67 in the estate

NTT builds to 1.5. This building does not, and the reason is the most useful thing about it.

Bengaluru 24.5 MW IT in 7.5 MW facility167%Bengaluru 312 MW IT in 20 MVA167% naiveNAV1A, Mahape30 MW IT in 45 MW150%Bengaluru 467.2 MW IT in 100 MW149%Mumbai 725.6 MW IT in 38 MW148%Facility load as a percentage of critical IT load. Bengaluru 2 is the only building in NTT's Indian estate that breaks 1.5 upward on published megawatts alone.
Figure 1Facility load as a percentage of IT load, every NTT building where both halves are published. Four bars cluster at 1.5. One does not.
The five buildings where NTT publishes both halves
BuildingIT loadFacility loadRatio
Bengaluru 24.5 MW7.5 MW1.67
Bengaluru 312 MW20 MVA1.67 naive, 1.50 at 0.9 pf
NAV1A, Mahape30 MW45 MW1.50
Bengaluru 467.2 MW100 MW1.49
Mumbai 725.6 MW38 MW1.48

Four of the five land between 1.48 and 1.50. That is not a published policy; it is a design standard visible only because the operator publishes both numbers. Bengaluru 2 is 11% above it.

The plant behind 4.5 MW of rentable load is 3 MW. Behind 67.2 MW at Bengaluru 4 it is 32.8 MW — proportionally half as much. Nothing is wrong with either building. One is simply too small to amortise its own chillers.

The floor on overhead

There is a size below which overhead cannot be reduced, because chillers, pumps, switchgear and battery rooms are bought in units, not in proportion.

In this registry that floor sits somewhere between 4.5 MW at 1.67 and 12 MW at 1.50. Bengaluru 2 and Bengaluru 3 bracket it.

3Why small halls cost more per megawatt

The ratio converts into rupees, and the rupees are the reason a 4.5 MW hall can never be sold on price.

Annual power cost per megawatt of IT
RatioFacility load per MW ITAnnual energyAnnual cost
1.49 — Bengaluru 41.49 MW10,442 MWhRs 8.4 crore
1.67 — Bengaluru 21.67 MW11,703 MWhRs 9.4 crore
Difference0.18 MW1,261 MWh+Rs 1.0 crore per MW per year

At the registry’s standard Rs 8 per kWh and 80% loading, the 0.18 difference in ratio costs about Rs 1 crore a year for every megawatt of rentable IT. On this building’s 4.5 MW that is Rs 4.5 crore a year of extra electricity against what the same capacity would cost at Bengaluru 4’s ratio.

Small halls survive on location, latency and the willingness of a customer to pay for a smaller commitment. They do not survive on price per megawatt, and NTT’s own numbers say so.

4Bengaluru's two disclosure models

Karnataka is the one state in this registry where two of the largest operators can be compared on the same terms — and the comparison is unusually clean on both sides.

NTT Bengaluru 4 campusplanned, three buildings67.2 MW plannedSTT GDC Bengalurupublished city headline23 MW publishedNTT Bengaluru 4Alive June 202622.4 MW liveNTT Bengaluru 3live, 12 MW IT12 MWNTT Bengaluru 2live, 4.5 MW IT4.5 MWCritical IT load except the STT headline, which publishes no basis. Karnataka is counted at 90.7 MW in this registry across all operators.
Figure 2Bengaluru by record. Pale is planned, red is a published city headline, navy and dark are dated and counted buildings.
Two operators, one city
MeasureSTT GDC BengaluruNTT Bengaluru
Published city capacity23 MW67.2 MW planned campus
Records in this registry54
Basis statedunlabelled headlinecritical IT load, every record
Reconciliation23 published against 22.6 in cardsno city aggregate to reconcile
Additive capacity0 MW16.5 MW
Newest buildingBengaluru 3Bengaluru 4A, live June 2026

STT Bengaluru was the cleanest reconciliation in the first half of this registry: 23 MW published, 22.6 MW in the underlying buildings, a difference of 0.4 MW that is rounding rather than error. That remains the standard every other portfolio is measured against.

But the four tenths of a megawatt reconcile to zero counted megawatts, because every STT Bengaluru building sits inside a portfolio aggregate. NTT publishes 16.5 MW in the same city and counts all of it, because its buildings stand alone.

Two operators, one city, and the better reconciliation is the one that contributes nothing to the total. That is the paradox at the centre of this registry, and Karnataka is where it is sharpest.

5Procurement

Procurement window and scope
Gridvik assessment · 22 Oct 2026
What to buy here
Small-block Bengaluru colocation in Electronic City with published IT and facility load
Where the capacity is
Electronic City Phase 1 — the older Bengaluru cluster, not the airport corridor
Who holds the answer
NTT Global Data Centers India commercial team
The one question
What is the rack count and the kW per cabinet, and how much of the 4.5 MW is uncommitted
Why they will answer it
It is a small, fully published site with a connectivity-led proposition
Gridvik estimate
About 300 to 500 cabinets at 9 to 15 kVA, with most of the 4.5 MW committed. Labelled an estimate
What changes it
A rack count, or a PUE
All estimates are labelled as estimates. No tender dates claimed, no private contact data published.
Unlock GridFeed →

6Limits and open questions

  • 4.5 MW is critical IT load and 7.5 MW is facility load. They must never be added together or compared with a facility-load figure from another building.
  • The 1.67 ratio is the highest in NTT’s Indian estate but it is computed from two published figures of unknown vintage. If either has been updated without the other, the ratio is stale.
  • No rack count, floor area, PUE or occupancy.
  • The Bengaluru market comparison is not like for like: STT’s 23 MW is a city headline, NTT’s 16.5 MW is two buildings.
  • The Rs 8 per kWh tariff and 80% loading are registry assumptions, not contract rates.
  • What would close it. A rack count and a floor area would make this the most comparable small hall in India.

7Sources

Sources: NTT Global Data Centers Bengaluru 2 facility page, NTT DATA global data center locations index, Data Center Dynamics reporting on the Bengaluru portfolio, Datacentermap listing for GDC Bengaluru 2, and Datacenters.com facility listing.