Capacity sourcing / Large power blocks

Wholesale Colocation Space from 250 kW to 5 MW

Find a serviceable power block with the right delivery path, redundancy, cooling and expansion terms, not simply a facility with space on a map.

Wholesale colocation capacity sourcing
Updated July 2026

Choose the right delivery model

ModelTypical scaleWhat the provider deliversBest fit
Retail colocationCabinets to roughly 250 kWShared data hall, cabinets or cage, managed facility infrastructureSmaller deployments and network-rich footprints
Private suite250 kW to 1+ MWDedicated room or hall with provider-operated infrastructureEnterprise control without building a facility
Wholesale colocation500 kW to 5+ MWLarge dedicated capacity block, often with configurable distributionScaled infrastructure and predictable growth
Powered shell1 to 10+ MWBuilding shell and delivered utility capacity; customer completes more fit-outTeams with data center design and operating capability
Build-to-suit5+ MWPurpose-built facility under a long-term commercial structureLarge, specialized and durable requirements

What changes from 250 kW to 5 MW

250 kWPrivate cage or suite options may still exist. Facility minimums and density matter.
500 kWDedicated suite economics, ramp and adjacent expansion become central.
1 MWContiguous capacity, utility status and construction dependencies narrow the field.
2 to 5 MWWholesale phases, powered shells or future delivery paths are increasingly likely.

Capacity for lease needs a dated delivery path

For operating capacity, verify usable IT kW, room or suite, cooling, electrical topology and the work needed to turn up service. For capacity under construction, document utility status, equipment procurement, commissioning milestones and the provider's contractual delivery obligation. Announced capacity without those details is not a dependable project option.

Commercial terms to normalize

  • Committed usable IT kW, metering basis and power overage treatment
  • Initial ramp, future ramp and take-or-pay milestones
  • Base recurring charge, utility pass-through and PUE treatment
  • One-time fit-out, distribution, security and commissioning charges
  • Annual escalators, renewal pricing and early termination rights
  • Adjacent expansion rights and consequences of a late future phase
  • Cross-connect, carrier, cloud and remote-hands costs
  • Service levels, maintenance rights and force majeure allocation

Build a wholesale capacity brief

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Compare four major markets

Ashburn

Exceptional network depth with very tight near-term availability and premium pricing.

Dallas

Large development pipeline and strong scale, with interconnection and prelease status to verify.

Atlanta

Rapid growth and East Coast reach, with immediate capacity tighter than long-term generation plans imply.

Chicago

Central geography and dense connectivity, with utility delivery timelines increasing the value of energized capacity.

Wholesale lease structure, term by term

At wholesale scale the rate is one line in a document that runs to dozens of pages, and the other lines routinely matter more. These are the terms that decide what you actually pay over a decade.

TermMarket rangeWhat to negotiate
Initial term, wholesale1 to 3 years, up to 10 to 15In constrained primary markets providers push 24 to 36 month minimums
Initial term, hyperscaleTypically 15 yearsUsually with two or three 5-year extensions
Extension pricingFMV or fixed strikeA fixed strike is worth real money in a rising market
Annual escalator2.5% to 5%Fixed 2 to 3%, or CPI linked with a floor and a cap
PUE capTypically 1.3 to 1.4Above the cap, inefficiency is the landlord's cost, not yours
Secondary market terms12 months availableOften within 10 to 15% of long-term pricing

Ranges are drawn from market and advisory reporting on 2026 lease structures rather than from a single published source, and vary by market, landlord and requirement size. Treat them as a negotiating reference, not a quote.

The PUE cap is the most overlooked term in the document

In a modified gross plus electric structure you pay for the power your equipment draws and a share of the facility overhead to deliver it. A PUE cap of 1.3 to 1.4 means the landlord absorbs the cost of running less efficiently than that. Without a cap, an ageing facility's declining efficiency becomes your operating expense for the length of the term. Ask for the cap, and ask how PUE is measured and how often it is reported.

How the economics change with size

Wholesale is not one product. The commercial structure shifts at recognizable thresholds, and knowing which band you are in tells you what leverage you have.

BandStructureTypical leverage
Under 250 kWRetail colocation, per cabinet or per kWLittle. You are a price taker on a rate card
250 kW to 4 MWWholesale, per kW per monthReal. Term, ramp and escalator are all negotiable
4 MW and aboveHyperscale, 10 to 15 year commitmentsLowest unit pricing, but the longest lock-in
Build to suitPurpose-built, long termFull specification control; now accepted as securitization-grade collateral

The published reference point for the middle band is about $196.25 per kW per month for a 250 to 500 kW requirement in primary North American markets. The important trend is that pricing for 3 to 10 MW requirements rose 12.5% year over year, roughly double the rate of the smaller band. Large contiguous blocks are now the scarce product, so scale buys less discount than it did two years ago. Full sourcing is on the pricing benchmarks page.

Ramp schedules and what they really cost

Almost no tenant consumes its full commitment on day one. How the contract handles the gap between contracted and actual draw is one of the largest cash-flow variables in a wholesale deal, and it is frequently glossed over in a rate comparison.

  • When billing starts: at handover, at a milestone, or on a fixed calendar date regardless of readiness.
  • Whether there is a floor: many structures bill a minimum percentage of committed power from day one even if you draw nothing.
  • Ramp steps: how quickly the billed floor rises, and whether steps are monthly, quarterly or annual.
  • Whether unused capacity is protected: if you ramp slowly, can the landlord sell the headroom you are paying to reserve?
  • Overage treatment: what you pay above committed draw, and whether it is metered or penalized.
  • Expansion rights: a right of first refusal on adjacent capacity, and at what price it is struck.

A slower ramp with a low floor can be worth more than a lower headline rate, particularly on a deployment that phases over two years. Model the full term in cash, not in rate.

Normalizing two wholesale proposals

  1. Convert to cost per usable kW per month, not per cabinet, per rack or per square foot.
  2. Fix the power basis. Allocated, metered or usable IT load. Proposals frequently differ on this alone, and the difference can exceed the rate gap.
  3. Model the escalator to term end, including the compounding effect, and price a CPI-linked clause at both its floor and its cap.
  4. Price the ramp in cash, month by month, including any billing floor.
  5. Add every recurring extra: cross-connects, carrier ports, cloud on-ramps, remote hands and monitoring.
  6. Add one-time charges and amortize them across the term for a true monthly figure.
  7. Value the extension. A fixed strike against FMV is a material difference. Digital Realty reported renewal rents up 25.4% on a cash basis in Q2 2026, which is what FMV can mean in practice.
  8. Price the exit: termination rights, migration cost and any overlap during a move.
Where the value usually is

On wholesale deals the largest recoverable value is rarely the headline rate. It is the escalator, the extension strike price, the ramp floor and the PUE cap. Those four terms compound across a decade. A one-off concession does not.