Two powered-land listings can quote the same cents per kilowatt-hour and produce different monthly bills. To compare AI data center sites, ask each supplier to price the same facility load profile and show every charge included in the estimate. Request separate estimates for commissioning, early ramp-up and steady operation.
Get the billing basis in writing
Ask for the applicable tariff, supply agreement, service voltage and quote validity date. Where electricity supply and delivery are billed separately, request both sets of charges. Have the supplier identify which items are included in its advertised rate and which are additional.
The Department of Energy groups common electricity bill components into energy charges based on kWh consumed, demand charges based on measured or billed kW, and fixed charges. Its rate guidance also explains that demand calculations can include prior peaks through a look-back provision. Ask the supplier to show how the actual tariff calculates each item for your proposed load. DOE guidance on evaluating utility rate options
Model the months before full deployment
A site may reach its contracted capacity before every data hall is occupied. Give the utility or energy supplier a monthly ramp-up plan with expected consumption, maximum demand and service dates for each phase. Ask whether minimum bills, contracted-demand obligations or other fixed commitments begin before the campus reaches steady operation.
Request an estimate for a slower ramp as well. In that scenario, the project consumes fewer kilowatt-hours while some monthly charges may remain. Show the resulting cash payment and effective cost per kWh so the acquisition team can see how much working capital the ramp requires.
A simplified 10 MW comparison
Assume two hypothetical offers for a 720-hour month. Offer A charges $0.05/kWh plus $15/kW of billed demand. Offer B charges $0.07/kWh with no separate demand charge. For this example only, both have a 10,000 kW billing demand where applicable, and no additional charges.
| Scenario | Energy used | Offer A total | Offer B total |
|---|---|---|---|
| 90% load factor | 6,480,000 kWh | $474,000 | $453,600 |
| 50% load factor | 3,600,000 kWh | $330,000 | $252,000 |
In the first scenario, Offer A’s energy charge is $324,000 and its demand charge is $150,000. Its effective cost is about 7.31 cents/kWh. At the lower load factor, the same assumed demand charge raises its effective cost to about 9.17 cents/kWh. Offer B stays at 7 cents/kWh under the assumptions shown. These figures illustrate the calculation and are not current site quotes.
Check the conditions behind discounts
If an estimate includes demand-response payments or savings from shifting load, ask for the operating commitment, notification process and payment assumptions. DOE describes demand response as compensation for temporarily reducing or shifting consumption under program rules. Have your operations team determine which workloads can meet the proposed commitment. DOE explanation of demand flexibility
Keep any projected credits visible as a separate line in the comparison. That lets the buyer assess the expected bill both with and without the assumed participation benefit.
Put the comparison beside the delivery evidence
For each shortlisted site, retain the source quote, applicable rate documents, monthly load assumptions and a list of excluded charges. Track one-time deposits and construction contributions separately from recurring electricity expense. Confirm the capacity and delivery conditions using our power availability checklist. If onsite generation is an option, use our grid-versus-gas comparison guide to define the cost boundary.
Explore the Ace Miners powered-land directory or send your site requirements. Include your initial load, expected ramp-up, preferred regions and required service date so opportunities can be evaluated on the same basis.