Green Mountain OSL1 Oslo Data Center Campus: 93MW Sustainable Hub
Status: Operational / Active Expansion | Location: Granittveien 100, 1914 Ytre Enebakk, Norway
Project Overview
Green Mountain’s OSL1-Enebakk Campus, located approximately 20 km southeast of Oslo, Norway, is a flagship carrier-neutral data center campus designed to deliver highly resilient, sustainable, and scalable digital infrastructure for the Nordic region. Providing up to 93 MW of total power capacity across a 75,000 m² campus, OSL1 comprises multiple purpose-built single-tenant and multi-tenant data center buildings that support hyperscale cloud providers, enterprise customers, financial institutions, and colocation services. The campus is powered entirely by 100% renewable hydroelectric energy through dual independent grid connections, ensuring exceptional energy reliability while maintaining a minimal carbon footprint. Engineered to Tier III standards, OSL1 is designed with a target Power Usage Effectiveness (PUE) of approximately 1.20, reflecting its strong focus on operational efficiency and environmental sustainability. The facility takes full advantage of Norway’s naturally cool climate, combining advanced N+1 precision cooling systems with liquid-cooling capabilities to support high-density rack deployments for artificial intelligence (AI), high-performance computing (HPC), cloud platforms, and other compute-intensive workloads. In addition, the campus incorporates heat recovery solutions that capture excess thermal energy for reuse, further improving overall energy efficiency and supporting circular economy initiatives. Strategically located near Oslo with excellent regional connectivity, Green Mountain’s OSL1-Enebakk Campus provides secure, low-latency, and future-ready digital infrastructure, reinforcing Norway’s position as one of Europe’s leading destinations for sustainable hyperscale and AI-ready data center development.
Quick Facts
| Field | Value |
|---|
| Project Name | Green Mountain OSL1 Oslo Data Center Campus: 93MW Sustainable Hub |
| Location | Granittveien 100, 1914 Ytre Enebakk, Norway |
| Status | Operational / Active Expansion |
| Commissioning | Phase 1 Go-Live: October 2020 / Expansion Phases: 2022, 2023, 2024–2025 |
| Total IT Load | ~60 MW – 75 MW Critical IT Load |
| Total Capacity | 93 MW Total Site Capacity across 75,000 m² (~800,000 sq ft) gross campus footprint |
| Tier Level | Tier III Certified Architecture / EN 50600 (ISO 27001, ISO 14001, ISO 9001, ISO 50001 Certified) |
| Project Type | Purpose-Built Hyperscale, Multi-Tenant Colocation & Sustainable Cloud Hub |
City Profile
| Header | Details |
|---|
| City Name | oslo |
| Population | ~720,000 |
| Urban Agglomeration | ~1.7 million (Greater Oslo Region) |
| City GDP | ~USD 100 billion (Oslo metropolitan economy estimate) |
| Per Capita Income | ~USD 85,000 |
| City Tier | Tier 1 – Nordic Economic, Technology & Innovation Hub |
| Key Strengths | Capital and largest city of Norway; strong technology and startup ecosystem; leading renewable energy and sustainability hub; advanced digital infrastructure; strong finance, maritime, and energy sectors; highly skilled workforce; excellent connectivity; growing data center market powered by renewable energy; attractive environment for green technology investments. |
Companies Involved
| Header | Details |
|---|
| Developer / Operator | Green Mountain |
| Strategic Infrastructure Partner | Statnett & Hafslund Eco (Local Power Utilities) |
| Construction Contractor | CTS Nordics & Specialized Nordic Mission-Critical EPC Contractors |
| MEP Engineering | Green Mountain In-House Infrastructure & Thermal Engineering Teams |
| Network Connectivity | Carrier-neutral platform with dual diverse underground fiber entrance vaults; redundant Meet-Me-Rooms (MMRs); 3+ independent fiber providers with direct low-latency backhaul routes to Oslo and European backbones. |
| Power Infrastructure | Dual independent grid feeds supplied by multiple regional hydroelectric plants, static 2N / N+1 uninterruptible power supply (UPS) systems, automated switchgear, and standby diesel backup generators. |
Technical Specifications
| Header | Details |
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| Power Capacity | 93 MW Total Utility Supply Allocation |
| UPS Redundancy | 2N / N+1 Static Uninterruptible Power Supply (UPS) Configuration |
| Cooling System | Precision N+1 chiller solution, indirect free-cooling, hot/cold aisle containment, direct liquid-cooling readiness, and heat-exchanger system prepared for waste heat recovery export. |
| Connectivity | Carrier-neutral facility providing high-speed cross-connects and direct fiber interconnects across Scandinavian networks. |
| PUE Target | < 1.20 Annualized Operational Design PUE |
| Energy Mix | 100% Green Renewable Energy (Hydropower) sourced from local power grid. |
Milestones
| Header | Details |
|---|
| Announcement | 2019 / 2020 |
| Construction Start | 2020 |
| Phase 1 Go-Live | October 2020 |
| Full Buildout | Operational Active Expansion |
Investment Details
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| Total Investment | Estimated NOK 2.0 Billion to NOK 3.5 Billion (~$190M–$330M USD) |
| Funding | Corporate Capital Expenditure by Green Mountain / Azrieli Group |