A colocation quote can look inexpensive per kW while allocating expensive unused capacity risk to the customer. A take-or-pay or minimum commitment may require payment for reserved power regardless of actual draw.
The real question is not whether a contract contains the phrase “take-or-pay.” It is exactly which quantity is billed, when the obligation starts and what events permit a reduction or cancellation.
What to include in the decision
- What is the billable unit?
- Test the minimum against actual ramp
- Recognize recurring and nonrecurring obligations
- Match the commercial promise to electrical evidence
What is the billable unit?
Retail agreements may reference cabinets, protected circuits, measured power, a fixed kW reservation or a blend of reserved and metered use. Wholesale agreements are more likely to include committed capacity blocks and a capacity delivery schedule.
Write down the difference between maximum connected load, critical usable load, A/B redundant circuit ratings and billed kW. It is especially dangerous to add the two A/B circuit nameplates and assume twice the usable IT capacity.
Test the minimum against actual ramp
Build a month-by-month occupancy model from contract signature through migration and stabilization. A fixed minimum on day one may be tolerable for a full relocation and expensive for a speculative AI expansion.
For phased delivery, negotiate dates and evidence of usable service. “Available for delivery” and “accepted by the customer” may not be equivalent triggers. Verify remedies if the operator cannot meet the contracted cooling or redundancy specification.
Recognize recurring and nonrecurring obligations
A reserved-power fee may exclude setup, cross-connects, remote hands, cross-campus fiber, metered-energy pass-through, electricity escalation and taxes. An apparently lower headline rate may therefore have a higher all-in cost.
The contract may additionally contain deposits, early termination amounts, annual escalators and renewal increases. Model at least a 36-month total including exit and decommissioning costs.
Match the commercial promise to electrical evidence
Attach a power schedule defining metering location, test method, permissible sustained current, PDU redundancy and response to a failed feed. The contractual service level should be assessed against commissioned critical power, not aspirational site capacity.
Keep a written issue register for curtailment rights, planned maintenance, oversubscription and failure to deliver. This is commercial guidance, not a legal interpretation of any specific agreement.
Illustrative minimum commitment
Assume 4,000 kW reserved at a hypothetical $140 per committed kW-month, with an 80% take-or-pay floor. The monthly minimum is 4,000 × 0.8 × $140 = $448,000 before excluded services. If actual use is only 1,600 kW, a usage-only model would materially underestimate the obligation. The $140 is a synthetic example, not an observed colocation price.
What a buyer can negotiate
A phased contract can attach each capacity block to an independently testable ready-for-service milestone. It can also allow a limited ramp, substitute cabinets of equivalent usable power, or transfer unused capacity to a nearby campus. These are negotiation possibilities, not standard entitlements.
If the operator wants a strong take-or-pay commitment, ask what service obligation it assumes in return. Consider the accepted test load, redundant path requirements, cure periods, installation delay credits and delivery of contracted cooling density. A reservation without clear acceptance criteria shifts uncertainty to the buyer.
Compare the minimum cost of unused capacity with the risk of securing too little capacity in a tight market. The right answer depends on growth certainty, migration timing and the cost of moving workloads again.
Scenario comparison: the capacity the customer never uses
Continue the synthetic example of 4,000 kW reserved at $140/kW-month with an 80% minimum. Minimum billable capacity is 3,200 kW, costing $448,000 each month. At a steady 1,600 kW of usage, the theoretical usage-only cost is $224,000: the gap is $224,000 every month if no higher base applies. Six such months create $1.344 million of additional minimum-commitment exposure.
This is not evidence that take-or-pay contracts are priced at $140/kW-month or that every contract has an 80% floor. It shows how to quantify contract exposure when migration and deployment are uncertain. An electricity pass-through may still appear on top of the reservation payment.
A dual-feed A/B design requires careful interpretation. Two 500 kW breaker nameplates do not necessarily mean 1,000 kW of concurrently deliverable critical load. Attach the engineering definition of usable capacity and the test conditions to the order form.
Compare two contractual structures on equal terms
| Dimension | Fixed reservation | Phased reservation |
|---|---|---|
| Billing start | All reserved capacity at first service date | Each capacity tranche after defined readiness |
| Customer risk | Pays more if rollout is delayed | May pay higher nominal rate or tranche fees |
| Provider risk | Capacity committed early | Cannot monetize unactivated blocks as quickly |
| Control to negotiate | Acceptance test, minimum relief and credits | Milestones, tranche pricing and conversion rights |
Redline and operational evidence to retain
A commercial reviewer should reconcile the master services agreement, order form, service-level terms, escalation mechanism, maintenance windows and power schedule. Define whether service credits offset the take-or-pay minimum or only another component, and whether they are the exclusive remedy. These are diligence questions, not assumptions about enforceability.
Build a one-page monthly commitment schedule with columns for available capacity, accepted capacity, reserved capacity, billed minimum, metered energy and one-off fees. That worksheet becomes the source of truth for finance, engineering and the migration team.
Questions to ask before signing or building
- Does minimum billing use reserved kW, delivered kW or metered kWh?
- Can committed capacity be ramped down or transferred to a future hall?
- What happens when the operator misses the readiness date or SLA?
- Which charges are excluded from the capacity minimum?
Methodology: illustrative figures are deliberately separated from sourced claims. Utility rates, commercial charges and engineering performance must be validated against site documents. Publication date: October 19, 2026.
Research and technical references
- DOE: Utility Rate Components as Analogy — background reference, not a project quotation