What must continue?
Keep existing site demand and higher-priority obligations separate from the additional load you want to test.
Operators
Can more fleet charging fit without compromising existing duties?
Check a proposed charging load alongside existing demand, protected commitments and the power and resource limits supported by the site records.
Spare power is only part of the question.
For charging, fleet and other power-backed operators, the assessment starts with the proposed load and the duties the site must keep serving. We confirm whether the equipment arrangement and available evidence fit a supported method.
What must stay available?
Account for evidenced battery energy, diesel or gas supply and protected reserves within the applicable method. Do not assume a finite window can repeat.
What needs reconciliation?
Conflicting measurements, uncertain resource evidence or missing limits can prevent a supported conclusion. They are not a reason to assume zero physical capacity.
Protect existing duties.
A proposed new use can fail a protection rule even when the baseline operating case passes. That does not mean the site itself failed.
Keep unknowns visible.
Data-quality checks identify missing or conflicting evidence. They cannot recreate measurements, prove repeat-cycle capability or authorize equipment operation.
Example site / Grid constraint and evidence gap
Synthetic example. Not a customer result.
A grid limit fails.
Fuel evidence is also missing.
A supplied 500 kW additional-load proposal requires 1,100 AC kW of grid import against a 1,000 AC kW limit. The result is Not supported. Missing fuel-consumption evidence remains a separate gap; it does not cancel the known grid failure.
Review the limit and obtain the missing records.
Confirm the grid allowance and supply consumption evidence at the requested generator output before reassessment.
Inspect the grid-constraint exampleWhich site questions fit?
Start with the equipment arrangement and the decision. These are separate supported methods, not permission to combine arbitrary assets.
Can the supplied gas-backed plan support the load?
One grid connection and one already-running natural-gas engine or turbine on a common electrical bus.
Uses documented manufacturer operating points and bounded gas supply. No battery combination, startup or islanding.
Natural-gas method scopeDo power, battery energy and diesel fuel cover the period?
One grid-connected site, one battery and one already-running No. 2-D diesel generator with an isolated fuel tank.
Checks supplied profiles and protected obligations. No refueling, extra units or dispatch optimization.
Grid/battery/diesel method scopeDoes compatible cooling support the proposed heat load?
Bounded air, single-phase liquid or mixed cooling, with one documented shared heat-rejection stage.
A separate thermal finding accompanies a compatible power evaluation. It does not approve the whole proposal.
Cooling assessment scopeOne site. One question. An agreed period.
First Site Evaluation
A scoped assessment using Headroom software for one site and one decision. Start with a short fit discussion; suitable records and a supported question are required. Agree scope, written authorization and data handling before sharing records.
Written finding within five business days after scope is agreed and the required records are confirmed.
Request a First Site Evaluation
Review the records checklist and who develops Headroom. No sensitive records are needed for the initial inquiry.
Read-only and export-based. A finding tests a supplied proposal over a stated period. No maximum-MW, safe shorter duration, repeat-cycle, firm-capacity or revenue guarantee is implied. Our capacity examples use synthetic inputs. Separate benchmarks check the processing of published Energy Systems Integration Facility (ESIF) measurements from the National Laboratory of the Rockies (NLR), formerly the National Renewable Energy Laboratory (NREL), including mapping, accounting and reported thermal arithmetic. These checks do not establish available site capacity. Customer validation and external engineering review remain outstanding. Methods and verification