Wholesale Colocation
Wholesale Colocation
Wholesale colocation — dedicated data halls, suites, or power blocks contracted at 1MW and above — is where the commercial and operational dynamics of data centre procurement shift substantially from the retail market. Contracts are bespoke, negotiated directly with operators, and structured to run from usually three up to fifteen years. The operators capable of delivering at this scale are a distinct subset of the total market. And the gap between headline pricing and true total cost of ownership — once power structures, connectivity charges, escalation mechanisms, and ancillary costs are factored in — is wider than most buyers anticipate going into their first wholesale procurement. Armason exists to close that gap.
What is Wholesale Colocation?
Wholesale colocation describes data centre arrangements where an enterprise buyer contracts a dedicated portion of a facility — a data hall, a suite, or a defined power block — rather than individual cabinets in a shared environment. The minimum threshold varies by operator and market but is typically 1MW of contracted IT power. Above that threshold, the buyer has dedicated space, dedicated power infrastructure, and a direct commercial relationship with the operator on bespoke terms.
The commercial structure of wholesale colocation is fundamentally different from retail. There is no published price list — rates are negotiated based on the scale of commitment, the length of the contract, and the competitive dynamics of the procurement process. Power pricing is often structured as a blended rate incorporating both fixed capacity charges and variable consumption elements. Contract lengths run from five to fifteen years, with pricing typically calibrated to the length of commitment. And the commercial terms — escalation mechanisms, exit provisions, expansion rights, SLA structures — are all negotiable, not fixed.
This creates both opportunity and risk for enterprise buyers. The opportunity is material cost reduction relative to retail colocation, particularly at scale and on long-term commitments. The risk is that poorly structured wholesale contracts — with unfavourable escalation, limited exit provisions, or embedded costs that were not modelled at the time of signing — can lock an organisation into commercially disadvantageous arrangements for a decade or more. Armason’s wholesale procurement process is designed to capture the opportunity and mitigate the risk.
Wholesale vs Retail
1MW+
Minimum contracted power — the threshold at which wholesale dynamics apply
3–15yr
Typical wholesale contract length — versus month-to-month or 1–3 year retail terms
Bespoke
All commercial terms — pricing, escalation, exit, SLA — negotiated directly, not taken from a price list
20–40%
Typical unit cost saving versus retail colocation at equivalent scale and location
Wholesale Colocation Commercial Considerations
Four commercial variables that determine wholesale colocation value.
Power Pricing Structure
Wholesale power pricing is typically structured as a fixed capacity charge per kilowatt per month of contracted capacity, plus a variable element based on actual consumption. Fixed capacity charges provide cost certainty but may be paid regardless of utilisation. Pass-through structures align cost with actual consumption but expose the buyer to energy market volatility. Hybrid structures balance both — and the specific structure negotiated has significant financial implications over a ten or fifteen year contract horizon.
Escalation Mechanisms
Annual price escalation tied to CPI, RPI, or a fixed percentage is standard in wholesale contracts. The difference between CPI and RPI escalation over a fifteen year commitment on a multi-megawatt contract can run to millions of pounds. The base year and calculation methodology matter as much as the percentage. Escalation caps — maximum annual increases regardless of the index — are negotiable and worth pursuing. Armason models escalation scenarios as part of every wholesale engagement to ensure buyers understand the full financial picture before signing.
Exit and Flexibility Provisions
Wholesale contracts are long-term commitments — but business requirements change. Operator standard terms typically provide minimal exit flexibility. Break clauses, capacity reduction options, and assignment provisions are all negotiable on a bespoke basis, particularly where the buyer is committing to significant scale or a long-term programme. Armason negotiates exit and flexibility provisions as standard in every wholesale engagement, ensuring that the contract structure accommodates operational reality over its full term.
Expansion Rights
Wholesale contracts should include clearly defined expansion rights — options to take additional capacity within the facility at agreed pricing or pricing formulae. Without contractual expansion rights, a buyer who has established operations in a facility and then needs to grow is commercially exposed to the operator’s current market pricing rather than the terms that were negotiated at the outset. In a rising market, this exposure can be material. Armason includes expansion right negotiation as a standard component of every wholesale procurement.
How Armason Procures Wholesale Colocation
Armason’s wholesale procurement process begins with a structured requirement definition that captures power commitment, density specification, redundancy level, connectivity requirements, compliance obligations, geographic constraints, contract length flexibility, and commercial parameters including expansion expectations. The specificity of this brief is what makes the subsequent operator engagement effective — operators receive a precise requirement they can price and respond to accurately.
We then engage a targeted set of operators with genuine wholesale capability and availability matching the requirement. Not a broadcast — a targeted engagement with the operators most likely to deliver, managed to ensure responses are directly comparable across power pricing structure, escalation mechanism, exit provisions, expansion rights, SLA terms, and total cost of ownership over the contract horizon.
Where multiple credible operators are available, we create structured competitive tension. In a wholesale procurement, this competitive process consistently delivers better commercial terms than direct single-operator engagement — lower base rates, more favourable escalation structures, better exit provisions, and more comprehensive expansion rights. The commercial value of this process typically represents multiples of Armason’s fee over the life of the contract.
We work across all sectors and all geographies where Armason is active — UK, Europe, and MENA. Minimum engagement is 1MW. All enquiries handled confidentially.
Wholesale Colocation by Location
London — Europe’s largest wholesale colocation market. Power is the primary constraint on new capacity. Pre-let opportunities and adjacent sub-markets in Hertfordshire and East London represent the most realistic near-term route to new wholesale capacity. Pricing range £150 to £300 per kW per month.
Manchester — the strongest UK alternative. Active operator build programmes, better grid accessibility, 30 to 50 percent cost advantage versus London equivalent. Pricing range £80 to £150 per kW per month.
Birmingham — lower cost than Manchester, growing operator base, improving grid conditions. Well-suited to Midlands-based enterprise requirements. Pricing range £75 to £140 per kW per month.
Frankfurt — Europe’s primary wholesale colocation hub for continental deployments. Rhine-Main corridor has active new development. DACH region anchor location.
Amsterdam — constrained by Dutch moratorium but existing operators continue to expand within licensed capacity. AMS-IX access and EU data residency credentials remain compelling for specific workloads.
Related
Enterprise Colocation
Wholesale and enterprise colocation at 1MW+ — the full guide to large-scale procurement.
Data Centre Cost
What wholesale colocation actually costs — pricing structures, market rates, and total cost of ownership.
Data Centre Procurement
How to run a structured wholesale procurement process from brief through to contract.
Discuss Your Wholesale Colocation Requirement
Tell us your power requirement, location, redundancy specification, and contract length preference. We will identify the right operators, run a structured competitive process, and deliver commercial terms that reflect market reality — not the first number an operator puts on the table.