CyrusOne AMS1: 54MW Hyperscale Amsterdam-Gateway Campus
Status: Live / Operational (Active AI-Density Modernization) | Location: Linieweg 1, 1165 AA Halfweg (Haarlemmerliede)
Project Overview
CyrusOne AMS1 is a premier, purpose-built hyperscale data center campus strategically positioned in Halfweg, situated inside the vital digital corridor between Amsterdam and Haarlem. Spanning 29,350 square meters of world-class technical space across two massive buildings, the 54MW campus is engineered to meet the stringent scalability requirements of global cloud providers, large-scale systems integrators, and multinational enterprises. The location is an exceptional network nexus; it sits directly along key long-haul international fiber routes, providing landing connections to the UK, Denmark, France, and the USA, while guaranteeing ultra-low latency entry into the Amsterdam metro network and the Amsterdam Internet Exchange (AMS-IX). Structurally, AMS1 utilizes a highly resilient, meshed IT power topology driven by a distributed redundant configuration and dedicated floor-by-floor plant rooms. To maximize operational sustainability in compliance with Dutch environmental policies, the facility uses 100% renewable energy, operates energy-efficient air-cooled chillers configured to a resilient chilled water ring, and actively champions ecological preservation through on-site bee colonies and native flora landscaping.
Quick Facts
| Field | Value |
|---|
| Project Name | CyrusOne AMS1: 54MW Hyperscale Amsterdam-Gateway Campus |
| Location | Linieweg 1, 1165 AA Halfweg (Haarlemmerliede) |
| Status | Live / Operational (Active AI-Density Modernization) |
| Commissioning | Originally Opened: 2020; Continuous Upgrades: 2025/2026 |
| Total IT Load | 54 MW |
| Total Capacity | 60 MW (Active / Active Dual Utility Grid Incomers) |
| Tier Level | Tier III Concurrently Maintainable Standards |
| Project Type | Hyperscale Build-to-Suit / Wholesale Colocation |
City Profile
| Header | Details |
|---|
| City Name | Halfweg |
| Population | ~3,000 |
| Urban Agglomeration | ~2.5 million (Amsterdam Metropolitan Area) |
| City GDP | Approx. €200 million (local economy estimate tied to Haarlemmermeer region) |
| Per Capita Income | ~€45,000 |
| City Tier | Tier 3 |
| Key Strengths | Strategic location between Amsterdam and Haarlem, strong transport connectivity, logistics access, residential appeal, proximity to Schiphol Airport |
Companies Involved
| Header | Details |
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| Developer / Operator | CyrusOne |
| Strategic Infrastructure Partner | Dutch Data Center Association (DDA) |
| Construction Contractor | Winthrop Engineering / Local Dutch Partners |
| MEP Engineering | Deerns / Royal HaskoningDHV |
| Network Connectivity | AMS-IX / NL-ix / Multiple Global Fiber Carriers |
| Power Infrastructure | Liander (Dutch National Grid Utility Provider) |
Technical Specifications
| Header | Details |
|---|
| Power Capacity | 54 MW IT Load (27 MW Dedicated per Building) |
| UPS Redundancy | 4.5 MW Blocks with Distributed Redundant Topology (A&B Feeds via STS) |
| Cooling System | N+1 Free-Cooling Air Chillers with N+25% Computer Room Air Handlers |
| Connectivity | Carrier-Neutral; Diverse Long-Haul Subsea and Terrestrial Routes |
| PUE Target | 1.22 |
| Energy Mix | 100% Green Renewable Energy Contracts (Since 2021) |
Milestones
| Header | Details |
|---|
| Announcement | Q4 2018 |
| Construction Start | Q1 2019 |
| Phase 1 Go-Live | Mid-2020 |
| Full Buildout | Ongoing / 2025-2026 |
Investment Details
| Header | Details |
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| Total Investment | $450 Million+ USD (Total Capitalized Campus Value) |
| Funding | KKR / GIP Private Equity & Corporate Infrastructure Funds |