APUs

As fuel costs continue to rise and emissions legislation gets tougher, LE offers a highly efficient, more power dense, less costly generator set solution that allows significant fuel savings using patented GenSmart™ technology.

These generators are featured in LE's variable speed AC power generation systems (VSPG), as well as constant speed DC systems. Our SG series engine generators are lightweight, compact units suitable for stationary applications where fuel efficiency is of high importance. Fuel savings of up to 30% can be achieved in comparison to traditional gensets and APU products. The VSPG series generator sets offer LE's patented technology featuring higher power density in a smaller package and improved motor starting capability over traditional fixed speed gensets.

Why consider LE's APUs?
When it comes to motor starting capabilities, traditional fixed speed generator sets use a 2.5kW=1HP ratio (genset size to motor load) for determining the correct size of the generator set. This routinely leads to lower operating efficiencies due to partial loading of typical generators under normal conditions. LE's GenSmart™ VSG enables the sizing of the generator set for acceptable motor starting to be accomplished with a 1kW=1HP ratio, resulting in smaller, less costly generator sets in comparison to traditional fixed speed units.

The use of these devices, also known as auxiliary generators, results in significant savings in fuel, reduced wear and tear on the vehicle's engine and reductions in emissions. Although they often use diesel fuel, APUs burn less fuel than a truck's main engine would consume while idling. Trucks consume as much as one gallon of fuel per idling hour. According to the Department of Energy, APUs can run more than 20 hours on one gallon of fuel. LE's APUs provide anti-idling conformance for air conditioner, heating system or for appliances such as televisions, or computers, or during loading/unloading to keep the engine and fuel warm in cold weather.