Ground Power Units
Ground power units are mobile or fixed electrical sets that supply aircraft with power on stand, so engines stay off during turnaround, boarding and maintenance. NLS supplies ground power units sourced from established international ground support equipment manufacturers, sized to aircraft type and apron power requirements across Saudi Arabia.
Inside the Ground Power Units
A ground power unit takes raw engine or grid power and conditions it into stable aircraft-grade electrical output, delivered to the aircraft through a dedicated connector while its engines stay shut down on stand. The generation set, output connector, and control panel work together so the aircraft's systems see clean, correctly regulated power throughout the turnaround.
01
Power Generation Set
The diesel engine-generator or static frequency converter that produces the aircraft-grade AC output, sized to the voltage, frequency and load the served aircraft type requires.
02
Aircraft Output Connector
The cable and plug that mate to the aircraft's external power receptacle, carrying regulated power to the aircraft while excluding any voltage or phase fault from reaching sensitive avionics.
03
Control and Monitoring Panel
Regulates output voltage and frequency and displays load and fault status, letting ground crew confirm the supply is within tolerance before and during connection.
04
Weatherproof Enclosure
Houses the generation set and electronics behind a heat-tolerant, filtered casing that keeps apron dust and sand out of the cooling airflow and control components.
05
Mobile Chassis and Tow Hitch
The wheeled undercarriage and tow coupling that let a mobile unit move between stands, or the fixed mounting frame for a gate-installed unit.
FULLY ASSEMBLED
Ground Power Units
| Configuration | Mobile towable or fixed gate-mounted |
| Output Range | Sized to the voltage and frequency of the aircraft type served, general aviation through wide body |
| Power Source | Diesel engine-generator or static frequency converter fed from apron electrical supply |
| Enclosure Rating | Heat-tolerant housing with filtered cooling intakes for high-dust apron conditions |
| Monitoring | Panel-level voltage, frequency and load display with fault indication |
| Sizing Basis | Matched to the operator's current and near-term fleet mix |
What a ground power unit does
While an aircraft sits on stand, its own engines and auxiliary power unit are not the most efficient or quietest way to keep cabin systems, avionics and lighting running. A ground power unit, mobile on wheels or fixed at a gate, plugs into the aircraft's external power receptacle and supplies stable electrical output for the duration of the turnaround. This lowers fuel burn on the apron, cuts engine hours, and reduces noise and exhaust around the stand.
Types and sizing
Ground power units range from small mobile carts for general aviation and business jets to large fixed or towable sets built for wide body aircraft. The correct unit depends on the aircraft types an operator handles, the voltage and frequency the aircraft electrical system requires, and whether the installation is mobile for flexible apron use or fixed for a dedicated gate. Getting the sizing wrong leaves an aircraft under-powered on stand or wastes capacity on units too large for the fleet actually served.
Considerations for Saudi operators
Apron equipment in the Kingdom runs in sustained high heat and dust, conditions that shorten the service life of poorly rated electrical and cooling components. Buyers should look for units built with heat tolerant enclosures, dust filtration on cooling intakes, and output stability suited to sensitive avionics. Fuel type also matters where diesel mobile units are used away from fixed apron power, since availability and servicing intervals affect uptime.
Supply from NLS
NLS supplies ground power units sourced from established international ground support equipment manufacturers, matched to the aircraft types and apron layout of the operator. This covers specifying the correct output class, coordinating delivery to Saudi airports, and advising on mobile versus fixed configuration based on how the stand is used day to day. Where an operator is expanding its fleet mix or opening a new stand, NLS supports the sizing exercise so the unit purchased fits both current and near term aircraft needs, not one aircraft type alone.
Aftercare
A ground power unit that fails on stand disrupts turnaround directly, since the aircraft has no other practical power source while parked. NLS supports its supply with access to spare parts and maintenance guidance so operators can keep units serviceable and avoid a single point of failure on a busy apron.
Specifications
- ✓Mobile and fixed configurations covering general aviation through wide body aircraft
- ✓Output matched to the voltage and frequency requirements of the aircraft type served
- ✓Heat tolerant enclosures and filtered cooling intakes suited to high temperature, high dust apron conditions
- ✓Diesel or electrically fed variants depending on apron power availability
- ✓Sourced from established international ground support equipment manufacturers
- ✓Sized in coordination with the operator's current and near term fleet mix
Frequently Asked Questions
What is the difference between mobile and fixed ground power units?+
A mobile unit is towed or driven between stands and suits operators handling varied traffic across an apron, while a fixed unit is installed at a dedicated gate and suits high frequency stands with consistent aircraft types. NLS advises on the right configuration based on how the apron is actually used.
Can NLS supply ground power units matched to a specific fleet mix?+
Yes. NLS reviews the aircraft types an operator handles and their electrical requirements before recommending output class and configuration, so the unit supplied fits the fleet actually served rather than a generic default.
Do ground power units need special protection for Saudi weather conditions?+
Yes. Sustained high heat and dust shorten the life of poorly rated electrical and cooling components, so NLS specifies units with heat tolerant enclosures and filtered cooling intakes suited to Saudi apron conditions.
What is the role of the Power Generation Set in Ground Power Units?+
The diesel engine-generator or static frequency converter that produces the aircraft-grade AC output, sized to the voltage, frequency and load the served aircraft type requires.
What is the role of the Aircraft Output Connector in Ground Power Units?+
The cable and plug that mate to the aircraft's external power receptacle, carrying regulated power to the aircraft while excluding any voltage or phase fault from reaching sensitive avionics.
What is the role of the Control and Monitoring Panel in Ground Power Units?+
Regulates output voltage and frequency and displays load and fault status, letting ground crew confirm the supply is within tolerance before and during connection.
What is the role of the Weatherproof Enclosure in Ground Power Units?+
Houses the generation set and electronics behind a heat-tolerant, filtered casing that keeps apron dust and sand out of the cooling airflow and control components.
What is the role of the Mobile Chassis and Tow Hitch in Ground Power Units?+
The wheeled undercarriage and tow coupling that let a mobile unit move between stands, or the fixed mounting frame for a gate-installed unit.