Engineered to maximize turnaround efficiency and reduce airport carbon footprint
In modern commercial and military aviation ecosystem operations, the ground infrastructure plays an essential role in dictating turnaround safety, runtime optimization, and environmental efficiency. A Ground Power Unit (GPU) acts as the central electrical lifeline of an aircraft parked at the gate or in the hangar. Traditionally, aircraft relied heavily on their onboard Auxiliary Power Units (APUs)—small gas turbine engines located in the tail—to run environmental control units, avionics packages, and engine start circuits. However, running APUs results in intense fuel burn, localized emissions, and severe noise pollution.
As international hubs aggressively pivot toward Net-Zero carbon thresholds, the deployment of highly efficient, low-loss external ground power units has evolved from a secondary ground equipment operation into a core utility imperative. Solid-state frequency converters and energy storage-based towable GPUs represent the technological zenith of this transformation.
Airports deploying advanced 400Hz frequency converter networks and battery energy storage GPUs reduce gate-area greenhouse gas emissions by up to 85% compared to continuous APU operations.
From a power-engineering perspective, aircraft utilize a 115V AC / 400Hz electrical supply instead of the conventional municipal grid frequency of 50Hz or 60Hz. The higher frequency allows generators, alternators, and transformers within the aircraft frame to be significantly smaller and lighter. Ground Power Units must seamlessly convert grid power or stored battery energy to this precise 400Hz voltage standard.
Modern airport installations leverage two primary GPU technological pathways:
The frontier of airport GSE relies heavily on battery electrification. Traditional diesel towable units are being systematically replaced by Energy Storage Ground Power Units. Utilizing heavy-duty Lithium Iron Phosphate (LiFePO4) or solid-state cell matrices, these mobile battery GPUs can support multiple back-to-back narrowbody and widebody turnarounds on a single charge.
By combining high energy density with advanced thermal management systems, modern energy storage GPUs deliver equivalent peak power loads (e.g., 90kVA, 120kVA, or 180kVA) required for regional jets up to intercontinental widebodies, without producing any tailpipe emission or mechanical vibrations.
True airport turnaround optimization cannot look at electrical power in isolation. While the GPU powers the instruments and lighting, the cabin temperature is regulated by Pre-Conditioned Air (PCA) systems and Air Conditioning Units (ACU). Combined utility solutions that place PCA hoses and 400Hz cables on single passenger boarding bridge structures or clean, consolidated chassis reduce ramp clutter, prevent accidents, and streamline the gate sequence.
Pioneering technological safety, long-term durability, and prompt global delivery networks
Production and distribution of world-class ground support equipment complying with CAAC, EASA, and FAA standards.
Providing specialized ramp, cargo, and passenger solutions optimized for heavy duty cycle operations at international hubs.
From static converters and battery GPUs to catering loaders, aircraft refueling trucks, and tow dollies.
Ensuring ISO9001 certified build quality paired with rigorous logistical support for zero-delay operations.
Explore our multi-category manufacturing capabilities across airport operations
Designed with standard pressure controls, integrated filtration, metering instrumentation, and self-circulation systems.
Reinforced steel base layouts with high directional stability for heavy cargo container repositioning.
High-capacity battery systems providing zero-emission 400Hz frequency converter power directly to parked aircraft.
Direct cabin heating/cooling unit providing strict temperature control settings to maintain cabin comfort.
High drawbar pull rating, engineered for pushback and towing operations of narrow and widebody aircraft types.
Safe and efficient boarding solutions for passengers with reduced mobility (PRM), built on heavy-duty chassis bases.
We offer total integration from raw design concept, electrical blueprint schematic formulation, thermal mapping, component localization, performance simulation to field trials. Our facilities provide international aviation partners with highly competitive systems that minimize ownership cost while raising field reliability.
Get professional engineering answers regarding aircraft ground electricity, logistics, and performance parameters
Delivering high-value ground support solutions across international airport networks
Stay up to date with ground handling innovations, technical standards, and operational guidelines
An analysis of modern boarding stairs, focusing on ergonomic slip-resistant step grids, mechanical chassis layouts, and active safety systems.
Discussing the design principles of heavy-duty lithium storage systems and their performance capabilities under extreme ramp conditions.
A look at ground power equipment functionality, highlighting how static converters and diesel mobile GPUs help reduce APU usage.
High-capacity dollies, aircraft tractors, cargo loaders, and premium heating solutions
Chidge Dolly
