Yondr Group LON2 Slough Data Center: 30MW Hyperscale & AI Hub
Status: Under Development / Active Phased Construction | Location: Slough Trading Estate Area, Slough, Berkshire, SL1 4DX, United Kingdom
Project Overview
Yondr Group’s LON2 AI Data Center Campus is a flagship hyperscale facility strategically located in Slough, West London, one of Europe’s most established and highly connected data center markets. Delivering 30 MW of critical IT capacity, the campus is purpose-built to support global hyperscale cloud providers, over-the-top (OTT) content platforms, financial institutions, telecommunications operators, and enterprises deploying artificial intelligence (AI), machine learning (ML), and high-performance computing (HPC) workloads. Designed for next-generation computing environments, LON2 offers flexible high-density rack configurations and integrated liquid cooling readiness, enabling customers to efficiently deploy GPU-intensive AI infrastructure while maintaining optimal thermal performance. The campus operates on 100% certified renewable electricity and incorporates ultra-efficient closed-loop chilled water cooling systems, low-carbon construction materials, and low-emission backup power technologies to reduce environmental impact while maintaining exceptional operational resilience. Engineered with highly redundant electrical and mechanical infrastructure, the facility delivers the availability and scalability required for mission-critical digital operations. Located within Slough’s dense optical fiber ecosystem, LON2 provides carrier-neutral connectivity with low-latency access to London’s financial district, major internet exchanges, cloud availability zones, and international subsea cable networks linking Europe with North America, the Middle East, and Asia. Supported by advanced physical security, continuous infrastructure monitoring, and energy-efficient operations, LON2 serves as a future-ready platform for cloud expansion, AI innovation, and sustainable digital transformation across the United Kingdom and Europe.
Quick Facts
| Field | Value |
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| Project Name | Yondr Group LON2 Slough Data Center: 30MW Hyperscale & AI Hub |
| Location | Slough Trading Estate Area, Slough, Berkshire, SL1 4DX, United Kingdom |
| Status | Under Development / Active Phased Construction |
| Commissioning | Phase 1 Go-Live: 2025–2026 / Multi-Phase Buildout |
| Total IT Load | 30 MW Critical IT Power Capacity Allocation |
| Total Capacity | 30 MW Total IT Power Capacity across a multi-story hyperscale facility |
| Tier Level | Tier III Certified Architecture / ISO 27001, ISO 14001, ISO 50001 Certified |
| Project Type | Purpose-Built Greenfield Hyperscale, High-Density AI Colocation & Sustainable Cloud Hub |
City Profile
| Header | Details |
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| City Name | london |
| Population | 8.9 Million |
| Urban Agglomeration | 9.8 to 11.4 million |
| City GDP | £110.8 billion in 2023 |
| Per Capita Income | £69,077 in 2023 |
| City Tier | Tier 1 |
| Key Strengths | Global Financial Hub; Dense Connectivity; Low Latency to Europe and North America; large skilled talent pool. |
Companies Involved
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| Developer / Operator | Yondr Group |
| Strategic Infrastructure Partner | Scottish and Southern Electricity Networks (SSEN) / National Grid UK |
| Construction Contractor | Specialized UK Mission-Critical EPC Contractors |
| MEP Engineering | Yondr Group In-House Global Engineering & Critical Facilities Teams |
| Network Connectivity | Carrier-neutral platform featuring diverse subterranean fiber entrance vaults; redundant Meet-Me-Rooms (MMRs); direct low-latency optical dark fiber connections to LINX (London Internet Exchange), Slough carrier hubs, and European cable routes. |
| Power Infrastructure | Dual 132kV high-voltage utility grid feeds, static distributed 2N / N+1 uninterruptible power supply (UPS) modules, automated switchgear, and standby emergency backup generators running on Hydrotreated Vegetable Oil (HVO) renewable biofuel. |
Technical Specifications
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| Power Capacity | 30 MW Secured Utility Power Allocation |
| UPS Redundancy | 2N / N+1 Distributed Redundant Static UPS Architecture |
| Cooling System | High-efficiency chilled-water precision cooling plant, free-cooling economizers, Direct-to-Chip Liquid Cooling (DLC) readiness supporting 80+ kW per rack, and zero-water dissipation systems. |
| Connectivity | Carrier-neutral access with direct low-latency cloud express on-ramps and cross-connect options across UK and European fiber corridors. |
| PUE Target | < 1.20 Annualized Operational Design PUE |
| Energy Mix | 100% Certified Carbon-Free Renewable Energy (Wind and Solar PPAs). |
Milestones
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| Announcement | 2023 |
| Construction Start | 2024 |
| Phase 1 Go-Live | Target 2025–2026 |
| Full Buildout | Active Multi-Phase Development |
Investment Details
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| Total Investment | Part of Yondr Group's multi-billion GBP European hyperscale expansion framework |
| Funding | Corporate Capital Expenditure & Private Equity Financing (Yondr Group / Apollo Global Management) |