STT Chennai DC 2: 57MW Ambattur Hyperscale Data Center
Status: Operational | Location: 226 Ambattur Red Hills Road, Kallikuppam, Ambattur Industrial Estate, Chennai, Tamil Nadu 600053, India
Project Overview
STT Chennai DC 2 is a flagship hyperscale data center facility located in Ambattur, Chennai, one of India's most important digital infrastructure and subsea cable connectivity hubs. Built across an approximately 400,000 square foot gross built-up area, the facility delivers around 57 MW of critical IT power, making it one of the largest operational data center developments in Southern India. Purpose-built to support the growing requirements of global hyperscale cloud providers, artificial intelligence applications, large enterprise workloads, and digital service providers, the campus offers highly secure, scalable, and resilient infrastructure for mission-critical operations. The facility is designed to accommodate high-density server deployments with advanced air and water cooling technologies that improve thermal efficiency while supporting modern GPU-intensive computing environments. A robust power infrastructure featuring a dedicated 110 kV dual-feed high-voltage utility connection, combined with fully redundant electrical systems and backup generation, ensures continuous availability and high operational reliability. Sustainability is a key element of the campus design, with more than 50% of its electricity sourced from renewable energy through long-term wind and solar power purchase agreements, complemented by onsite rooftop solar installations that further reduce carbon emissions. Strategically positioned near Chennai's extensive network of international subsea cable landing stations, the facility provides low latency connectivity to domestic and global markets, making it an ideal location for cloud platforms, content providers, financial institutions, and multinational enterprises seeking secure, energy-efficient, and future-ready digital infrastructure in one of India's fastest-growing technology ecosystems.
Quick Facts
| Field | Value |
|---|
| Project Name | STT Chennai DC 2: 57MW Ambattur Hyperscale Data Center |
| Location | 226 Ambattur Red Hills Road, Kallikuppam, Ambattur Industrial Estate, Chennai, Tamil Nadu 600053, India |
| Status | Operational |
| Commissioning | Operational |
| Total IT Load | 57.0 MW |
| Total Capacity | 57.0 MW (400,000 sq ft gross built-up area facility) |
| Tier Level | TIA-942 Rated 3 / LEED Gold Certified |
| Project Type | Greenfield Hyperscale Cloud & High-Density Enterprise Colocation Campus |
City Profile
| Header | Details |
|---|
| City Name | Chennai |
| Population | ~7.09 million (2021) |
| Urban Agglomeration | ~11 million (Chennai Metropolitan Area) |
| City GDP | ~$78.6 Billion USD (Estimated for Chennai, making it a key economic center) |
| Per Capita Income | High (Relative to national average) |
| City Tier | Tier 1 (Major metro and economic hub) |
| Key Strengths | Major subsea cable landing station hub for South Asia, strong IT/ITES presence, established industrial and manufacturing base, skilled workforce. |
Companies Involved
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| Developer / Operator | ST Telemedia Global Data Centres |
| Strategic Infrastructure Partner | TANGEDCO (Tamil Nadu Generation and Distribution Corporation) & Tamil Nadu Industrial Development Corporation (TIDCO) |
| Construction Contractor | Premier Indian Mission-Critical Civil & EPC Contracting Partners |
| MEP Engineering | STT GDC Global Engineering & Specialized Indian Mission-Critical Design Partners |
| Network Connectivity | Carrier-neutral design featuring direct fiber connections to major subsea cable landing stations (MIST, AAE-1, SEA-ME-WE 4) and dual Meet-Me-Rooms. |
| Power Infrastructure | Dedicated 110 kV utility substation feeds backed by N+N UPS systems and N+1 emergency standby generator arrays with 30-hour bulk fuel storage. |
Technical Specifications
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| Power Capacity | 57 MW total critical IT capacity |
| UPS Redundancy | N+N static UPS topology backed by N+1 emergency standby diesel generators with on-site fuel autonomy. |
| Cooling System | High-efficiency chilled water cooling loops combined with cold-aisle containment engineered for high-density rack configurations. |
| Connectivity | Carrier-neutral facility featuring multiple diverse subterranean fiber vaults, dual Meet-Me-Rooms, and low-latency interconnects to major cloud exchanges. |
| PUE Target | 1.30–1.35 |
| Energy Mix | ~50%+ Renewable Energy supplied through off-site wind/solar PPAs and 185 kW on-site solar PV generation. |
Milestones
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| Announcement | 2018 |
| Construction Start | 2018 |
| Phase 1 Go-Live | 2020 |
| Full Buildout | Operational (Full 57 MW capacity active) |
Investment Details
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| Total Investment | $250,000,000+ USD (₹2,000+ Crore INR) |
| Funding | Direct corporate balance sheet allocation & infrastructure growth debt facilities managed by STT GDC India |