How do I find out how much power a site can get, and by when?
Submit a site-specific load request to the serving utility and obtain a written, phased service plan supported by the applicable studies and agreements. Establish the MW available at each phase, the conditions and upgrades behind each date, and who is responsible for completing them.
By Volterra Advisors · Last updated
Data center infrastructure illustration.
Build the request and test the response
Confirm the parcel and provider. Identify the electric service territory, the customer entity, the site plan, and the proposed connection. County zoning or a transmission-line map does not establish a service commitment.
Prepare the load letter. State total facility demand separately from IT load, the requested voltage and reliability, the operating profile, and initial-to-full-load ramp. Dominion’s data-center process requests a site plan, load letter, and ramp schedule; use the current utility-specific submission route.
Ask for two service milestones. Separate commissioning or initial load from full capacity. Ask which MW are supported now, which depend on new work, whether service is firm or conditional, and what changes could invalidate the plan.
Identify every study and upgrade. Ask who performs the analysis, which inputs remain incomplete, whether other systems are affected, and who funds customer facilities and network work. A completed connection study does not settle every power-supply question.
Build a dependency schedule. Track agreements, payments, rights-of-way, permits, equipment, construction, outages, and testing. Attach an evidence source and responsible party to each milestone.
Refresh before committing. Reconfirm assumptions before land closing, a design change, or the next material payment. Keep an alternatives case if the initial or full-load date moves.
Compare the process, not a generic timeline
Which schedule should be relied on?
Region
Process to confirm
Timing evidence to obtain
PJM territory
The serving utility and transmission owner’s load-service route, with applicable PJM planning and current large-load requirements.
Written utility/owner milestones for studies, upgrades, and phased service. PJM generation-queue durations are not retail energization dates.
ERCOT
The interconnecting TSP/DSP’s current large-load route and applicable ERCOT eligibility, documentation, and study requirements.
Project-specific study and energization milestones. Check active requirements; do not reuse deadlines from a closed Batch Zero window.
Other regions
The serving utility’s process and the relevant transmission provider or grid operator’s requirements.
A dated scope, study sequence, cost responsibilities, and initial/full-load schedule for this site.
No universal PJM, ERCOT, or national interval establishes when a particular site will energize. A study target, a forecast entry, and construction completion are different milestones.
Red flags and next evidence
Investigate a single undated MW claim, a date without named upgrades, an unexplained mix of IT and utility MW, or a seller using a generator queue number as proof of load service. Use the will-serve checklist and system impact study definition to identify the missing evidence.
Dominion describes phased service and infrastructure dependencies. RMI separately explains the scope and limits of load interconnection studies. The following official process pages should be rechecked at the next decision point.
Start with the electric utility serving the actual parcel. Confirm how its transmission owner and regional operator participate in the applicable load-service process.
Is a customer load letter a utility commitment?
No. The load letter describes the customer’s requested demand and operating assumptions. Obtain the utility’s separate written response and the supporting service documents.
Can generation queue timelines predict my site’s service date?
No. A generation interconnection request and a customer load-service request have different rights, studies, and dependencies. Confirm the process governing the proposed site.
Should I ask for initial and full-load dates?
Yes. Record the MW and conditions for commissioning, each subsequent phase, and full load so the development schedule does not assume capacity arrives all at once.
What if the utility cannot yet support a date?
Record the unresolved studies and dependencies, identify the next decision milestone, and compare a smaller initial load, a different ramp, or another site.
