How to add electrical demand without weakening the cargo service it must support
The decision to electrify a piece of airport equipment is also a decision about when it can charge, what else shares its electrical supply, and what happens when that supply fails. A fleet that works on an annual energy estimate can still miss a departure bank because several units need power at the same time.
Airport authorities, cargo tenants, carriers, handlers, and utilities need a common plan built around actual duty cycles and critical loads. Begin with the equipment and service commitments already in the operating plan. Treat future aircraft and fuel pathways as separate scenarios until their demand, location, timing, and responsible customer become credible.
Use load profiles rather than blanket growth forecasts
The original article used large electricity-growth figures without enough context about geography, adoption, or whether electricity would be consumed at airports or upstream in fuel production. Those figures are not a defensible forecast for an individual cargo facility.
A more useful starting resource is the 2025 national-laboratory dataset of modeled hourly electric ground-support-equipment demand for the 50 largest U.S. airports by passenger enplanements. It can inform scenario development. It does not replace measured demand, a utility study, or a model of a particular cargo hub; its airport sample is not a ranking by cargo volume. [1]
Collect interval meter data, operating schedules, equipment duty cycles, available charging windows, existing service limits, and expansion plans. Check seasonal and irregular operations as well as the normal day. Name who owns each assumption so a revised flight bank or tenant plan triggers a revised load model.
Separate energy volume from peak demand
A hypothetical operation has 20 chargers rated at 30 kilowatts. If they all draw their rated input together, they add 600 kilowatts before other facility loads. Delivering 1,200 kilowatt-hours across an eight-hour window requires an average 150 kilowatts over that window. The average does not prove that the equipment can be ready when needed.
| Illustrative charging approach | Demand implication | Operational test |
|---|---|---|
| All 20 at rated input | Up to 600 kW before other loads | Can the service and equipment support it? |
| Spread 1,200 kWh across eight hours | 150 kW average | Are the charging windows actually available? |
| Apply an actively controlled site limit | Peak set by the control strategy | Does every critical unit reach its required charge before dispatch? |
The example is arithmetic, not an equipment design. Required input energy must account for charging losses and the actual duty cycle. Validate charger compatibility, minimum usable charging windows, reserve requirements, simultaneous facility loads, and the consequences of a failed charger or interrupted charging session.
Managed charging may reduce the peak and avoid or defer an upgrade. It can also reduce operational flexibility when a flight arrives late or spare equipment is unavailable. An operating team should approve the charging rules and the exceptions, rather than discovering them after equipment delivery.
Establish the utility and ownership boundary early
Ask the utility to identify the service study, upgrade scope, cost responsibility, deposits, construction sequence, and conditions behind the target energization date. Distinguish additional load service from approval to connect generation, storage, or export power. One does not establish the other.
Resolve who owns and maintains switchgear, chargers, controls, meters, and backup systems. At a leased cargo facility, confirm access, lease duration, removal obligations, cost recovery, and responsibility when another tenant changes its demand. Shared charging needs rules for allocation, dispatch priority, service failure, and billing.
Specify the outage service before choosing the technology
Define the loads that must continue, their starting requirements, acceptable interruption, and required duration. A cold room, an IT system, a charger, and a complete warehouse have different protection needs. Restoring power also does not establish that freight remained within its protection requirements.
| Option | Potential benefit | Condition to test |
|---|---|---|
| Managed charging | Lower coincident demand | Readiness during late arrivals and disrupted shifts |
| Battery storage | Short-duration support or peak reduction | Usable energy, power, reserve, degradation, and recharge |
| Standby generation | Longer backup capability | Start and transfer behavior, fuel, maintenance, permits |
| Solar with an engineered islanding system | Local generation within a resilient system | Controls, storage or other support, protection, and outage performance |
DOE explains that many solar systems disconnect when the utility grid is lost. Solar panels alone therefore do not establish outage capability. A system intended to sustain critical loads needs the appropriate design, controls, protection, and testing for its operating mode. [2]
Learn from a documented operating project
A January 2026 California Energy Commission report describes the Redwood Coast Airport Microgrid serving 19 retail customers, including the airport and a Coast Guard air station. It reports 63 islanding events covering 71.8 outage hours over 38 months. [3]
That is evidence of a specific project’s performance, not a standard outcome for a major cargo hub. The report also identifies difficult economics and implementation complexity. Its practical lesson is to develop the utility arrangements, controls, operating agreement, and business model alongside the equipment. A successful demonstration does not remove those requirements from the next project. [3]
Keep fuel pathways distinct
Battery equipment adds charging demand at the site. Delivered hydrogen can shift some production demand off site, while on-site production introduces a different electrical and operational scope. Sustainable aviation fuel production also has an upstream energy footprint; buying finished fuel does not mean that production electricity is consumed at the airport.
Use separate adoption scenarios, customer commitments, land and safety requirements, and decision dates for each pathway. Preserve feasible expansion options where justified, but do not build a combined forecast that counts uncertain demand as committed load. Coordinate common infrastructure only where the operating and commercial case supports it.
Make commissioning a service test
Before final acceptance, test the actual operating sequence: a late flight, simultaneous charging, an unavailable charger, a utility interruption, transition to backup, and return to normal service. Establish safe test procedures and acceptance criteria with qualified engineers and operators. Confirm alarm ownership and how the operation continues if an automated control fails.
Measure equipment ready at dispatch, charging-related delays, coincident peak demand, tested critical-load support duration, and recovery time. Compare the results with the business case. A system can reduce energy use while failing the service requirement, or deliver valuable continuity without providing the highest financial return.
Connect policy to a specific constraint
Airport sponsors should confirm the applicable FAA program, eligible scope, current guidance, and funding process. VALE and the Airport ZEV pilot are targeted programs, not a general promise to pay for every cargo tenant’s energy project. Their existence does not establish an open award or a private applicant’s eligibility. [4, 5]
For policymakers and regulators, useful improvements include clear study milestones, transparent allocation of upgrade costs, workable shared-infrastructure arrangements, and performance measures tied to reliability and public benefit. Compare the incremental cost of resilience with the consequence it is intended to prevent. Avoid assuming that a preferred technology automatically meets the duty cycle or outage requirement.
Diakon Partners helps organizations translate those requirements into coordinated utility, infrastructure, investment, and policy decisions. The starting point is the service that must remain dependable.