How does an electric APU work?

The Idle Free electric APU uses the energy from one of two sources—an independent battery bank or a reefer unit—to heat or cool the bunk, warm the engine or fuel tanks, and provide 120 volt AC electricity to run a TV or computer.

What is an electric APU?

ComfortPro® electric auxiliary power unit (APU) quietly cools the cab for driver comfort throughout the night, during breaks and rest periods using energy supplied by the tractor.

How much does a APU cost?

According to the North American Council for Freight Efficiency (NACFE), APUs can cost anywhere from $8,500 to $13,000 per unit installed.

What is an APU for semi trucks?

What is an APU in Trucking? An APU unit or an Auxiliary Power Unit is a game changer for the trucking industry. It is a small, efficient motor that is capable of producing the power needed to keep the air/heat running, interior appliance power, etc without the need to run the truck’s engine.

Can APU power hydraulics?

Auxiliary power units, or APUs as they are more commonly known, are devices that supply essential electrical power, pneumatics or hydraulics to a vehicle when the regular operational sources are not available. APUs are found on aircraft, boats, trucks and trains, and may be diesel, electrical or turbine powered.

How does an auxiliary power unit work?

The auxiliary power unit is usually run on the ground during passenger boarding and deplaning. The APU turns an electric generator that powers the electrical system on the aircraft when the main engines are off. It also provides pneumatic pressure for air conditioning and, more importantly, starting the main engines.

What is auxiliary power system?

Auxiliary power is electric power that is provided by an alternate source and that serves as backup for the primary power source at the station main bus or prescribed sub-bus. An offline unit provides electrical isolation between the primary power source and the critical technical load whereas an online unit does not.

What is an auxiliary power unit?

Auxiliary power unit. An auxiliary power unit (APU) is a device on a vehicle that provides energy for functions other than propulsion.