Pantheon AI Topusko

Status: Announced / Permitting   |   Location: Zagreb


Project Overview

The Pantheon AI Topusko Mega-Campus represents a historic shift in the European digital landscape and marks one of the continent’s most ambitious technology investments to date. Announced on April 29, 2026, the €50 billion project is far more than a traditional data center development; it is envisioned as a fully integrated energy-and-compute ecosystem built to power the next generation of artificial intelligence. By selecting Topusko, Croatia, the developers are leveraging the region’s abundant land availability, competitive operating environment, and strategic geographic position at the crossroads of Western and Southeastern Europe. This location offers strong connectivity to major European markets while opening new opportunities for regional economic growth, infrastructure modernisation, and technology leadership. The campus is being purpose-built to support “GW-Scale AI Factories,” massive computing environments capable of handling the extraordinary processing needs of organisations training multi-trillion-parameter AI models. Such systems require unprecedented levels of electricity, cooling efficiency, network speed, and resilient operations, making integrated infrastructure essential. Beyond computing power, the project is expected to stimulate investment in renewable energy, grid upgrades, high-skilled employment, and advanced research partnerships across Europe. As demand for sovereign AI capacity rises, Pantheon AI Topusko positions Croatia as a serious contender in the race to host Europe’s next major digital hub. If executed as planned, the mega-campus could become a blueprint for future AI infrastructure where energy generation, sustainability, and hyperscale computing are developed together rather than separately.


Quick Facts

FieldValue
Project NamePantheon AI Topusko
LocationZagreb
StatusAnnounced / Permitting
CommissioningPhase 1: Q1 2029
Total IT Load500 MW
Total Capacity5.2 GW (Potential Grid Export)
Tier LevelTier IV (Highest Resilience)
Project TypeHyperscale AI Factory

City Profile

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City NameTopusko
Population2,800
Urban Agglomeration3,500
City GDPApprox. €45 million
Per Capita IncomeApprox. €12,500
City TierTier 4 – Small Municipality / Local Tourism & Spa Town
Key StrengthsThermal spa tourism, historic health resort, natural surroundings, forestry, agriculture, peaceful lifestyle, regional connectivity, wellness potential

Companies Involved

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Developer / Operator Pantheon Atlas
Strategic Infrastructure Partner Greenvolt International Power
Construction Contractor Dalekovod Projekt
MEP Engineering Ravel Ltd.
Network Connectivity GreenMed Subsea (Milan-Rome-Zagreb route)
Power Infrastructure Končar Group (Substations)

Technical Specifications

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Power Capacity500 MW IT Load
UPS Redundancy2,000 MW / 8,000 MWh Battery Energy Storage System
Cooling System Hybrid Liquid Cooling (AI-Optimized)
Connectivity 4 Independent Fiber Routes across 3 EU Corridors
PUE Target 1.12
Energy Mix 500 MW On-site Solar + Grid Renewables

Milestones

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Announcement April 29, 2026
Construction Start Early 2027 (Expected)
Phase 1 Go-Live Q1 2029
Full Buildout 2032

Investment Details

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Total Investment€50 Billion ($58.5 Billion USD)
Funding Pantheon Atlas Transatlantic Fund

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