power units (APUs) are used on heavy trucks to provide power for heating and air conditioning, lighting and electronic systems in circumstances where the diesel engine must be turned off. Hodyon's diesel-electric Dynasys™ APU system provides dependable comfort for the driver during down times, reduces emissions and lowers fuel costs during stops (vs. idling of the main engine). Hodyon's current APU embodies a design it considers superior and the company provides field support, customer service and product fleet trial programs viewed by customers as significantly better than the competition.