STT GDC Pune 3 is 15 MW, identical to Pune 2. Under the only arrangement of the five Pune cards that reconciles to the 40 MW three-facility headline, those two buildings carry 30 of the 39 megawatts — 77% of the current Pune footprint in a matched pair. Identical capacities to the decimal mean one design built twice, which is how capacity gets delivered quickly in a secondary city. No stage, rack count, floor area or PUE is published, so the pair’s dominance is arithmetic rather than confirmed.
1At a glance
2Seventy-seven per cent in two buildings
Pune looks like a five-building portfolio. Read against its own headline, it is a two-building portfolio with a small site attached.
| Building | MW | Share of the 39 | Role |
|---|---|---|---|
| Pune 2 | 15 | 38% | half of the matched pair |
| Pune 3 | 15 | 38% | the other half |
| Pune 1 | 9 | 23% | the smaller site |
| Total | 39 | 100% | against a 40 MW headline |
Two buildings out of five carry 77% of current capacity, and they are the same building. That is a real operational fact and it has two consequences.
The first is delivery: a standard module can be replicated quickly, so the expansion pair at 18 and 24 MW can be built and commissioned on a known schedule. The second is exposure: three quarters of the city footprint shares a design, and presumably a site, a utility connection and a fibre route.
3What a matched pair tells buyers
Identical capacities are a signal about how the operator works, and they are more useful to a tenant than any headline.
| Observation | What it implies for a tenant |
|---|---|
| Same capacity to the decimal | one design, known delivery time, predictable pricing |
| Likely shared site | shared substation, so shared resilience risk |
| Same cooling design | the same density ceiling in both buildings — ask what it is |
| Pair carries 77% of the footprint | you are probably being shown one of two buildings |
| No stage on either card | the operator can sequence them without republishing anything |
For a tenant the practical value is predictability. A standardised building has a known fit-out, a known rack count per hall and a known lead time — and in Pune, where only one other operator has meaningful capacity, that predictability is the product.
For the market the value is different: a standard module tells you the shape of the next building before it is announced. If STT builds Pune 4 and 5 to the same module, the city adds 30 MW on a schedule anyone can model.
4Procurement
5Limits and open questions
- No stage. Neither card says whether the building exists.
- No basis. 15 MW is unlabelled.
- No racks, floor area or PUE. The design ceiling — the thing a standard module most needs to be known for — is absent.
- The 77% depends on the reconciliation on PRJ-123, which is an inference rather than a statement.
- Shared site assumed, not confirmed.
- What would close it. A design density. That one figure gives the pair a commercial identity.
6Sources
Sources: STT GDC India Pune city page, STT GDC India facility pages for Pune, STT GDC India corporate site, Nxtra Pune material for the market comparison, and Indian market commentary on Pune data centre capacity.