The Problem
Modern airports are among the most complex electrical environments in commercial infrastructure. Baggage handling systems with hundreds of VFD-driven motors, solid-state frequency converters at every gate, terminal HVAC, runway lighting, and the accelerating shift to electric ground support equipment — all generating harmonic distortion that compounds across a massive distribution network.
Flight bank operations create dramatic load swings as terminals surge from idle to full capacity within minutes. The result: power factors below 0.85, demand spikes that trigger ratchet charges lasting months, and harmonic levels that degrade sensitive navigation and security equipment.
What Causes It
Baggage handling VFDs generate 25–40% current THD. Solid-state frequency converters (SSFCs) at gates convert 50/60 Hz to 400 Hz for aircraft systems — each a significant harmonic source. Electric ground support equipment charging adds rectifier harmonics.
The electrification challenge ahead + Read more− Close
Airport electrification is accelerating. Denver International projects 235 MW by 2050 — a 5x increase. Every electric bus, ground power unit, and preconditioned air system adds non-linear load. Without proactive power quality management, airports face costly infrastructure upgrades for both capacity and harmonic mitigation. Managing power quality now defers or eliminates transformer and switchgear upgrades as electrification scales.
The Solution
HarmoniQ’s patented narrowband tuning technology dynamically maintains clean power across airport distribution networks. Sampling 20,000 times per second, the system adapts in real time to flight bank surges and eGSE charging cycles.
Eliminates harmonics to below 3% THD — meeting stringent IEEE 519 limits for airport installations. Prevents resonance and protects transformer insulation from harmonic heating.

Stabilises voltage during jet bridge operations, baggage system start-ups, and ground power switching. Protects navigation aids, FIDS displays, and security screening equipment.

Corrects power factor to 0.98+, managing rapid PF variations from flight bank load swings and eGSE charging. Frees transformer capacity for electrification growth.

The Impact
| Metric | Before | After HarmoniQ | Improvement |
|---|---|---|---|
| Power factor | 0.78 | 0.98+ | +25.6% |
| Electricity consumption | 120M kWh | 107M kWh | −10.8% |
| Annual electricity cost | $18,300,000 | $16,300,000 | −$1,980,000 |
Every facility is different. Our engineers will model the exact savings, deployment costs, and timeline for your specific site — get in touch for a free, no-obligation assessment.
Beyond the Bill
Clean power extends the life of baggage handling motors, security equipment, and transformers. It also protects sensitive navigation and communication systems that aviation safety depends on.
A 10.8% electricity reduction delivers 2,600–3,100 tonnes of CO₂e per year — a significant contribution to ACI Airport Carbon Accreditation.