Last Updated: Sep 29, 2025
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Largest Data Centers around the world with over 1GW Capacity Under Construction

Last Updated: by Robert Barnesby
Home » Buildings » Data Center » Largest Data Centers around the world with over 1GW Capacity Under Construction

As global demand for artificial intelligence, cloud computing, and massive data storage intensifies, a new generation of gigawatt-scale data centers is emerging. These facilities are not only engineering marvels but also strategic digital infrastructure projects that will shape how countries and corporations process and store information.

Here are the largest data centers currently under construction—each aiming to exceed 1 gigawatt (GW) of power capacity.

ADS-TEC Germany Energy 1GW

Capacity: 1 GW output / 2 GWh storage (phased implementation; full commissioning by 2029)

Developer: ADS-TEC Energy

Purpose: To develop one of the world’s largest battery energy storage systems (BESS) to enhance Germany’s grid stability, capacity and ancillary services.

Highlights:

  • Project Name: Flagship BESS Project (Southern Germany)

  • Location: Southern Germany

  • Grid Connection: Extra-high voltage grid (positive TSO assessment secured)

  • Solar Integration: Onsite PV in the double-digit MWp range to supply internal demand and lower operating costs

  • Estimated Revenues: ~€230 million annually (based on 2024 market data)

  • Status: Approved by local city council; development and financing underway

  • Timeline:

    • September 2025 – Project announced; approvals and grid connection assessment secured

    • Mid-2026 – Development and financing completion target

    • 2026–2029 – Construction and phased implementation

    • 2029 – Full commissioning and operations start

  • Strategic Role: Supports Germany’s renewable integration and demonstrates ADS-TEC Energy’s push into large-scale storage markets

Blue Owl-Led AI Data Center Hub

Capacity: 1.2 GW (Phase 1 – 206 MW; Phase 2 – 1.1 GW)

Developer / Operator: Blue Owl Capital, Crusoe, Primary Digital Infrastructure

Purpose: To build one of the largest AI-optimized data center campuses in Texas, supporting hyperscale cloud and machine learning workloads.

Highlights:

  • Part of the Lancium Clean Campus spanning 800+ acres in Abilene, Texas

  • Phase 1: Two Tier III buildings, 206 MW total, initial 100 MW leased to a Fortune 100 hyperscale tenant

  • Phase 2: Expansion to eight buildings adding 1.1 GW capacity, full build-out targeted by early 2030s

  • Powered by West Texas wind and solar, reinforced with new substations and grid upgrades

  • Cooling: Air-cooled, water-free high-density racks (AI/Machine Learning optimized)

  • Financing: $2.3 B package by Newmark for Phase 1; $15 B led by J.P. Morgan for Phase 2

  • Jobs: Hundreds of construction and permanent roles in Phase 1; thousands of construction and several hundred permanent roles in Phase 2

Project Matador 11GW Data Center in Texas

Capacity: Up to 11 GW (Initial 1 GW by late 2026)

Developer: Fermi America (co-founded by former U.S. Energy Secretary Rick Perry)

Purpose: To build the largest U.S. energy-and-AI data center complex, combining nuclear, natural gas, and solar power in Amarillo, Texas.

Highlights:

  • Project Name: Hypergrid (also referred to as Project Matador)

  • Scale: 18 million sq ft hyperscale campus on ~5,800 acres near the DOE’s Pantex Plant

  • Partners: Texas Tech University System

  • Energy Mix: Early stages anchored by natural gas; long-term plan prioritizes nuclear with four 1-GW reactors under NRC review; solar integration planned

  • Near-Term Capacity: Acquired 600 MW of natural gas generation across two deals (nine turbines) to meet initial demand

  • Launch Date: Formal launch planned for July 4, 2025

  • Strategic Location: Adjacent to major gas pipelines and large natural gas fields, positioning it among the largest data centers worldwide

Vantage 1.4GW Data Center in Texas

Capacity: 1.4 GW at full build-out (10 hyperscale facilities)

Developer: Vantage Data Centers (backed by DigitalBridge Group)

Purpose: To create one of the world’s largest AI-optimized hyperscale campuses and cement Texas as a leading digital infrastructure hub.

Highlights:

  • Project Name: Frontier Campus

  • Location: 1,200-acre site in Shackelford County, Texas

  • Total Investment: $25 billion (largest project in Vantage’s global portfolio)

  • Scale: 10 data centers totaling 3.7 million sq ft engineered for GPU/AI workloads

  • Rack Density: Ultra-high (>250 kW per rack) with advanced liquid cooling

  • Cooling Technology: Closed-loop chiller design conserving billions of gallons of water annually

  • Sustainability: LEED certification pursuit and sustainable-by-design technologies

  • Status / Timeline: Already under construction; first building scheduled online second half of 2026

Google 1GW Data Center in India

Capacity: 1 GW
Developer: Google (Alphabet Inc.)
Purpose: To expand Google’s cloud and AI computing capacity in India.
Highlights:

  • Alphabet’s First Data Center Investment in India

  • Largest Data Center in Asia by Capacity and Investment

  • $2 Billion Dedicated to Renewable Energy Capacity

  • Supports Andhra Pradesh’s Goal to Build 6 GW of Data Centers in 5 Years

  • Will Drive Major Energy Infrastructure Growth — Estimated 10 GW Needed

  • Includes Development of Three New Cable Landing Stations in Visakhapatnam

  • Part of Google’s $75 Billion Global Data Center Expansion This Year

Meta’s  AI Data Center in Richland Parish, Louisiana

  • Capacity: 2 GW
  • Developer: Meta
  • Purpose: To train Meta’s Llama AI models.
  • Highlights:
    • Meta’s Largest Data Center Yet
    • Renewable Energy Commitment – 1.5GW Clean Power via Geaux Zero
    • Lead to massive energy infrastructure upgrades, including:

Meta says this data center will be its 23rd data center in the United States and 27th in the world.

Stargate Data Center – Abu Dhabi, UAE

    • Capacity: 1 GW (Phase 1: 200 MW by 2026)

  • Developer: G42 & OpenAI (with Oracle and Nvidia partnership)

  • Purpose: Dedicated to AI and supercomputing workloads

  • Highlights:

    • The flagship facility in OpenAI’s global “Stargate” program

    • Hosts one of the world’s largest sovereign AI infrastructures

    • Strategically located in a region with growing tech investment and energy capacity

This facility marks the UAE’s bold move to become a global leader in AI infrastructure, powered by strong government backing and deep-pocketed investors.

Neom Oxagon Data Center – Saudi Arabia

  • Capacity: Targeting 1.5 GW

  • Developer: ZeroPoint DC & Neom

  • Purpose: Net-zero, AI-native data center for industrial, cloud, and defense data

  • Highlights:

    • Part of Saudi Arabia’s futuristic NEOM city

    • Renewable-powered, using solar and hydrogen

    • Advanced cooling and modular construction design

This is expected to be one of the largest and greenest hyperscale campuses in the world, central to Saudi Arabia’s digital ambitions.

Haenam (Salaseido) AI Cluster – South Korea

  • Capacity: 3 GW (Phase 1: 300 MW by 2028)

  • Developer: Government of Jeollanam-do + Private partners

  • Purpose: AI research, cloud, sovereign data processing

  • Highlights:

    • Built in 25 blocks of 40 MW each

    • Full completion expected by 2028

    • Near the sea, using local renewables and energy-efficient cooling

This site is part of South Korea’s national plan to decentralize data infrastructure and attract AI industries to underdeveloped regions.

Tsukuba Data Center Campus – Japan

  • Capacity: 1 GW (Phase 1: 50 MW by 2026)

  • Developer: Goodman Group

  • Purpose: Regional hyperscale cloud and AI workloads

  • Highlights:

    • Located in Tsukuba Science City

    • Covers 45 hectares of high-tech, disaster-resistant land

    • Serves both Japanese tech companies and global cloud clients

This project underscores Japan’s renewed focus on digital infrastructure resilience and regional technology leadership.

Gangwon Hyperscale Cluster – South Korea

  • Capacity: ~1 GW

  • Developer: Private sector + government-backed energy firms

  • Purpose: General-purpose cloud, AI, and edge deployments

  • Highlights:

    • Located near surplus power sources like nuclear and coal

    • Power cost efficiencies by selling excess directly to tenants

    • Multiple facilities being planned across Gangneung and Donghae

This effort will help South Korea meet soaring AI compute needs while reducing power transmission costs by localizing data hubs.

Teesside AI Growth Zone– United Kingdom

  • Capacity: 6 GW by 2030

  • Developer: Google

  • Purpose: Regional hyperscale cloud and AI workloads

  • Highlights:

    • Located in Teesside, near Redcar in northern England

    • Covers 46.45 hectares as designated AI Growth Zone

    • Multiple technological-based facilities to be developed in the area

Why 1GW Matters

A 1 gigawatt (1,000 MW) data center can:

  • Host millions of servers

  • Consume power equivalent to a small city

  • Cost $5–10 billion+ to build and operate

  • Support large-scale AI model training, 5G networks, and global cloud storage

As tech companies and governments compete to build digital sovereignty, gigawatt-scale facilities are becoming strategic infrastructure, not just corporate assets.

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